1 WATLOWTable of ContentsWhat type of heater do you need?Heating Solids ............................................................3Heating Liquids/SurfaceHeating and Immersion..............................................4Heating Gases............................................................5Heating Vacuums .......................................................6Code Number Index...................................................7Heater Selection Matrix 3FIRERODCartridge Heaters ...................................13High-Temperature FIREROD Heaters.......................47Metric FIREROD Cartridge Heaters .........................49Metric EB Cartridge Heaters ....................................59MULTICELL Heaters.................................................65Cartridge/Insertion Heaters 11WATROD Single/Double-Ended Heaters..................73High-Temperature Tubular Heaters.......................93MULTICOIL Tubular Heaters .................................95Milled Groove Tubular Heaters .............................97FIREBARSingle/Double-Ended Heaters ................99FINBAR Single/Double-Ended Heaters..................119Tubular Heaters 71WATROD and FIREBARScrew Plug Immersion Heaters..............................125Screw Plug with Control Assembly.....................195WATROD and FIREBAR ANSIFlange Immersion Heaters .....................................199WATROD and FIREBARFlange Immersion Heaters .....................................269Plate Flange Immersion Heaters.........................269Square Flange Immersion Heaters .....................275Bayonet/Pipe Insert Immersion Heaters.............279Over-the-Side Heaters............................................281L and O Shaped Immersion Heaters ..................281Vertical Loop Immersion Heaters........................287Drum Immersion Heaters....................................291FIREROD Immersion Heaters.................................295Immersion Heaters 123FREEFLEXHeaters ...............................................301Ultra-Pure Thick Film Quartz Heater Modules.......305STARFLOW Heaters ...............................................311CAST-X 500 Circulation Heaters ............................313CAST-X 1000 Circulation Heaters ..........................317CAST-X 2000 Circulation Heaters ..........................319CAST-X 3000 Circulation Heaters ..........................325UNIVERSAL SOLVENT Circulation Heaters ...........331WATROD and FIREBAR Circulation Heaters..........333Booster Heaters ..................................................379Engine Preheaters...............................................381Circulation Heaters 299Duct Heaters ..........................................................387LDH SERIES and D SERIES ...............................387MDH SERIES.......................................................401Finned Heaters .......................................................405375 Finned Strip Heaters ....................................405FINBAR Single/Double-Ended Heaters ..............413Enclosure Heaters ..................................................415WATROD Heaters................................................415Silicone Rubber Heaters .....................................417Air Heaters 385Flexible Shapes and Geometries ...........................421Silicone Rubber Heaters ........................................423Line Heating ...........................................................441Polyimide Heaters ..................................................455Flexible Heaters 419Heated Part Capabilities . . . . . . . . . . . . . . . . . . . .461The Heated Part Concept . . . . . . . . . . . . . . . . .461Standard Aluminum Platen Heaters . . . . . . . . . . .464Standard 200 and 300 Platen Heaters . . . . . . .464Cast-In Heaters 459Table of ContentsWATLOW2High-Temperature/High-Performance Heaters 467WATROD and FIREBAR Elementand Assemblies ......................................................677Agency Certifications,Recognition and Approvals 675Power Calculations.................................................657Equations................................................................663Wattage Requirements...........................................665Tubular Elements and AssemblySelection Guide......................................................667Reference Data 655Terms and Conditions of Sale................................683Terms and Conditions of Sale 683Mineral Insulated Band Heaters.............................505THINBANDMica Heaters......................................517Special Mica Band Heaters....................................537Ceramic Knuckle Band Heaters.............................547Band/Barrel Heaters 503Mineral Insulation Strip Heaters.............................553Mica Strip Heaters..................................................557375 High-Temperature Strip Heaters .....................567FIREBAR Clamp-On Heaters .................................575Thick Film Conduction Heaters..............................577Strip/Clamp-On Heaters 551Standard Coil and Cable Heaters ..........................581Coil/Cable Heaters 579Mineral Insulated Nozzle Heaters...........................591THINBAND Mica Nozzle Heaters ...........................599Syringe Heaters......................................................605Thick Film Cylindrical Heaters................................607Pre-Coiled Cable Nozzle Heaters ..........................609Metric Mini K-RINGHeaters.................................611Nozzle/Slip-On Heaters 589RAYMAXFamily ....................................................615Panel Heaters .........................................................619Tubular Reflector Heaters.......................................629Quartz Tube Panel Heaters ....................................635Quartz Tube Heaters ..............................................636Band and Strip Emitters.........................................638Radiant Heaters 613SERIES EHG.........................................................641SERIES EHG SL10 .................................................643ST10 and ST207.....................................................647Bulb and Capillary..................................................649Low Liquid Level Sensors ......................................653Protective Wells......................................................654Thermostats and Accessories 639ULTRAMICAdvanced Ceramic Heaters...............469MULTICELL Heaters...............................................473High-Temperature Tubular Heaters ........................475Ceramic Fiber Heaters ...........................................477Mineral Insulated Band Heaters.............................5013 WATLOWHeater Selection MatrixHeating SolidsCartridge/InsertionHeatersInserted into a close fit hole, i.e. platens, dies and molds. IncoloyStainless steelup to 300up to 30046.546.5140010007605401313TubularHeatersClamped to the object to be heated, usually exteriorsurfaces of tanks or other process vessels or fitted intomilled grooves in a platen.Flat: IncoloyStainless steelRound: IncoloyStainless steel404040406.26.26.26.2140012001600120076065087065099997373FlexibleHeatersBonded or otherwise fastened to the part. Commonly usedto heat irregular surfaces and shapes, or applicationsrequiring distributed wattage or limited space.PolyimideSilicone rubber20103.11.6390500200260455421Cast-inHeatersIntegrating a tubular or cable heating element into a castingto form a heated part. Commonly used to reduce the toatalnumber of equipment parts.Aluminum 60 9.3 700 370 461HighTemperature/HighPerformanceHeatersMULTICELL - Loosely inserted into the platen hole forradiant heating. Can also be used in any static or dynamicnon-contact application as a radiant heat source.Commonly used for extreme high temperature applications,i.e. glass bending and tempering or super plastic formingand diffusion bonding of titanium and other exoticaerospace alloys.Ceramic fiber - Form the heaters into an oversized chamberto surround the object being heated. Using radiant andconvection heat transfer, ceramic fiber heaters are used asovens and furnaces.ULTRAMIC advanced ceramic - Bonded or clamped to theobject being heated.InconelIncoloyMolded ceramic fiberAluminum nitride60603010009.39.34.61552250225022007521230123012054006565477471Band/BarrelHeatersClamped to cylindrical surfaces. i.e. extrusion barrels andnozzles.Aluminized steel withmica insulationStainless steel withmica insulationStainless steel withmineral insulation20-5520-5530-2003-8.53-8.54.6-3190010001400480540760537537505Strip/Clamp-onHeatersBolted or clamped to surface of, i.e. dies, molds, ovens.Often used for freeze and moisture protection.Aluminized steel withrefractory insulationStainless steel withmica insulationStainless steel withmineral insulationAluminized steelwith mica insulation5030100257.75.415.53.8120010001400900650540760480567557553557Coil/CableHeatersCan be formed to heat flat or curved surfaces, or woundaround the object being heated. Typical applications includeplaten heating and plastic injection molding nozzles.Inconelor stainless steel 30 4.6 1200 650 581RadiantHeatersUsed in any static or dynamic, non-contact applicationwhere conduction or convection heating is not practical.Commonly used in laminating processes, thermoformingand paint drying. Note: quartz tubes supply quick heat upand cool down.IncoloytubularMolded ceramic fiberQuartz tubeStainless steelemitter strip402045306.2374.615002000160013008151095870700629623635619Typical Max. Max. OperatingHeater Sheath Watt Densities Temperatures CatalogType Application Description Materials W/in2W/cm2F C Page4 WATLOWHeater Selection MatrixHeating Liquids/Surface Heating and ImmersionCartridge/InsertionHeatersUsed as an immersion heater placed either directly in theliquid, or in a protective well. Recommended for immersionin water or 90 plus percent water soluble solutions.IncoloyUp to300in water46.5 212in water100 13TubularHeatersImmersed directly in the liquid being heated. Mostcommonly used when high kilowatts are required. Multiplestyle mounting adaptors, such as flanges and NPT fittings,provide excellent pressure boundaries.Flat: IncoloyStainless steelRound: CopperIncoloyStainless steelSteel6060606060609.39.39.39.39.39.31400120035016001200750760650180870650400999973737373ImmersionHeatersFIREBAR - Multiple elements mounted in a flange or screw plugfitting. Immersed directly in a fluid or in a protective well.WATROD - Multiple elements mounted in a flange or screwplug fitting. Immersed directly in a fluid or in a protectivewell.IncoloyIncoloy316 stainless steelSteelCopperUp to100Up to10015.515.5212in water212in water1400in air100100760123123CirculationHeatersCAST-X - Cast with tubing through which liquids pass andare heated. Most often used where long life, resistance tocontamination and reliability are critical.FREEFLEX - Heater polymeric tubing. Used to maintaintemperature in medical applications where heated flexibletubing is required.Thick film - Applied to the surface of a quartz tube. Used indeionized water and aggressive chemical heating.UNIVERSAL SOLVENT - Cast with tubing through whichliquids pass and are heated. Most often used where longlife, resistance to contamination and reliability are critical.Tubular - Multiple elements mounted in a screw plug orANSI flange fitting and placed in a vessel through which fluidis passed. FIREBAR or WATROD elements may be utilized.Tubing 316 stainlesssteelPolyimideQuartzTubing 316 stainlesssteelRound: IncoloyCopperStainless steelSteel6072 W/ft10060606060609.322 W/m15.59.39.39.39.39.350021226639216003501200750260100130200870180650400313-329301309332333333333333FlexibleHeatersApplied to the surface of a pipe vessel containing a liquid.Well suited for curved surfaces and irregular shaped objects.Frequently used for freeze protection.PolyimideSilicone rubber20103.11.6390500200260455421Cast-inHeatersCast with tubing through which liquids pass and are heated.Most often used where long life, resistance to contaminationand reliability are critical.Aluminum 60 9.3 700 370 461HighTemperature/HighPerformanceHeatersAssemble heaters into a chamber which surrounds the tank,vessel, crucible or bath. Radiant and convection heattransfer heat the load.Molded ceramic fiber 30 4.6 2200 1205 477Band/BarrelHeatersClamped to cylindrical surfaces, most commonly used toheat liquids flowing through pipes as freeze protection.Aluminized steel withmica insulationStainless steel withmica insulationStainless steel withmineral insulation20-5520-5530-2003-8.53-8.54.6-3190010001400480540760537537505Strip/Clamp-onHeatersBolted or clamped to the wall of a tank or vessel. Used infood warming and other applications offering a flat mountingsurface.Aluminized steel withrefractory insulationStainless steel withmica insulationStainless steel withmineral insulationAluminized steel withmica insulation5030100257.74.615.53.8120010001400900650540760480567557553557Coil/CableHeatersWrapped or wound around pipe or vessel containing aliquid, or used directly as an immersion heater. Often used inapplications with space limitations, i.e. photo processingequipment, scientific instruments and heat tracing.Inconelor stainless steel 30 4.6 1200 650 581Nozzle/Slip-onHeatersSyringe - Formed heater to fit cylindrical part. Often used inmedical applications for heating contrast media. Oftenincorporates sensor and on-board system.LexanSilicone rubber230.310.4718542885220605605Typical Max. Max. OperatingHeater Sheath Watt Densities Temperatures CatalogType Application Description Materials W/in2W/cm2F C Page5 WATLOWHeater Selection MatrixHeating GasesCartridge/InsertionHeatersMounted in pipes or vessels through which gases pass. Canbe placed in protection tubes, making access and wiringeasier.Incoloyor stainlesssteel 100 15.5 ContactWatlow13TubularHeatersMultiple elements mounted in an array and placed in a ductor vessel through which gases pass. Flat tubular elementscan be modified with the addition of fins to increase surfacearea.Flat: IncoloyStainless steelRound: IncoloyInconel303030304.64.64.64.6140012001600180076065087098099997373CirculationHeatersCast-in - Cast with tubing through which gases pass andare heated, functioning as a circulation heater. Most oftenused where long life, resistance to contamination andreliability are critical.Tubular - Multiple elements mounted in a screw plug orANSI flange fitting and placed in a vessel through which fluidis passed. FIREBAR or WATROD elements may be utilized.Tubing 316 stainlesssteelFlat: Incoloy304 stainlesssteelRound: IncoloyInconel60303030309.34.64.64.64.65001400120016001800260760650870980313-329333333333333AirHeatersDuct - Multiple elements placed in a duct through whichgases pass.Enclosure - Prevents freezing and condensation in electricaland mechanical housings.Finned FIREBAR - Aluminized steel fins attached to aFIREBAR element. Used for forced air heating and radiantheating in drivers, ovens and duct work.IncoloyStainless steelStainless steel20 to 3015Up to 503 to 4.62.37.7140012001200760650650392415121FlexibleHeatersApplied to the surface of a pipe or vessel containing gases.Well suited for curved surfaces and irregular shaped objects.Excellent for use in enclosures.PolyimideSilicone rubber550.80.8390500200260455421HighTemperature/HighPerformanceHeatersMULTICELL - Multiple elements placed in a duct or vesselthrough which gases pass. Designs also available to heatpass tube externally to isolate gas from the element.Excellent for use in high temperature/high pressureapplications.Ceramic fiber - Used to construct chambers and furnacesthrough which gases are passed. Heaters function as hightemperature radiant heaters surrounding transfer pipes orother special vessels.InconelIncoloyMolded ceramic fiber6060309.39.34.62100210022001150115012056565477Strip/Clamp-onHeatersGenerally modified with the addition of fins to increasesurface area. Commonly used for air heating, drying ovensand space heaters.Aluminized steel withrefractory insulationStainless steel withmica insulationStainless steel withmineral insulationAluminized steelwith mica insulation6020100209.3315.53120010001400900650540760480567557553557Coil/CableHeatersCable heaters are sinuated or wound into coils which canbe inserted into a pipe or vessel to heat flowing air or gases.Cable heaters readily lend themselves to applications wherespace is restricted.Inconelor stainless steel 30 4.6 1200 650 581Typical Max. Max. OperatingHeater Sheath Watt Densities Temperatures CatalogType Application Description Materials W/in2W/cm2F C Page6 WATLOWHeater Selection MatrixHeating VacuumsCartridge/InsertionHeatersMounted in a vacuum vessel for radiant energy transfer. IncoloyStainless steelup to 35up to 355.45.4140010007605401313TubularHeatersMounted in a vacuum vessel for radiant energy transfer. Flat: IncoloyStainless steelRound: IncoloyInconel303030304.64.64.64.6140012001600180076065087098099997373FlexibleHeatersApplied to the exterior surface of a pipe or vessel. Wellsuited for curved surfaces and irregular shaped objects.Note: Polyimide is the only flexible heater typerecommended for use in the vacuum.PolyimideSilicone rubber7101.11.6390500200260455441Cast-inHeatersConstruction of a vacuum vessel with cast-in heaters so thatthe interior surface acts as a radiant heater. Possible zonedinterior surface.Aluminum 60 9.3 700 370 461HighTemperature/HighPerformanceHeatersMULTICELL - Mounted in a vacuum vessel for radiantenergy transfer.Ceramic fiber - Surround the exterior surface of a vacuumvessel, using radiant energy for heat transfer.ULTRAMIC advanced ceramic - Bonded or clamped to theobject being heated.InconelIncoloyMolded ceramic fiberAluminum nitride60603010009.39.34.61552250225022007521230123012054006565477471Band andBarrelHeatersApplied to exterior surface of a pipe or vessel. Stainless steel withmineral insulation 100 15.5 1400 760 505Coil/CableHeatersWound into a coil or sinuated and mounted in a vacuumvessel for radiant energy transfer.InconelorStainless steel 20 3 1200 650 581RadiantHeatersMounted in a vacuum for radiant energy transfer. Stainless steel 30 4.6 1300 700 635Typical Max. Max. OperatingHeater Sheath Watt Densities Temperatures CatalogType Application Description Materials W/in2W/cm2F C Page7 WATLOWCode Number IndexHow To Use This IndexThis easy cross reference contains the alpha or numeric prefixes for all Watlow product code numbers contained inthis catalog. The spaces (_) shown in some of the following prefixes indicate additional characters.Note: Some code numbers include a suffix alpha character. This is the last alpha character that appears in the productcode number.005_ STRETCH-TO-LENGTH line heaters 446008_ Modular gas line heaters 442010_ Silicone rubber wire-wound elements 42801202_ STRETCH-TO-LENGTH line heaters 44601203_ STRETCH-TO-LENGTH line heaters 44601206_ Modular gas line heaters 44201209_ Modular gas line heaters 44201212_ Modular gas line heaters 4420121805_ STRETCH-TO-LENGTH line heaters 446012180C_ Modular gas line heaters 4420122_ Modular gas line heaters 4420123_ Modular gas line heaters 442015_ STRETCH-TO-LENGTH line heaters 4470160205_ STRETCH-TO-LENGTH line heaters 447016020C_ Modular gas line heaters 44201603_ Modular gas line heaters 44201606_ Modular gas line heaters 44201608_ Modular gas line heaters 44201609_ Modular gas line heaters 44201612_ Modular gas line heaters 4420161805_ STRETCH-TO-LENGTH line heaters 447016180C_ Modular gas line heaters 4420162_ Modular gas line heaters 4420163_ Modular gas line heaters 442017_ Modular gas line heaters 443018_ Modular pump line heaters 45102002_ Silicone rubber wire-wound elements 42802005_ Silicone rubber wire-wound elements 42802006_ Modular pump line heaters 4530201_ Modular pump line heaters 4530202_ Modular pump line heaters 453024_ Modular gas line heaters 4430260_ Modular pump line heaters 4510265_ Silicone rubber drum heaters 43903003_ Silicone rubber wire-wound elements 428030050_ Silicone rubber wire-wound elements 428030056_ Modular pump line heaters 4520301_ Modular pump line heaters 452031_ Modular gas line heaters 444032_ Modular pump line heaters 451034_ Modular pump line heaters 453035_ Modular pump line heaters 453038_ Modular gas line heaters 444039_ Modular gas line heaters 443040_ Coil and cable heaters 58104004_ Silicone rubber wire-wound elements 42904005_ Silicone rubber wire-wound elements 42904009_ Modular pump line heaters 4500401_ Modular pump line heaters 4530403_ Silicone rubber drum heaters 4390406_ Silicone rubber drum heaters 439Code PageNumber Description Number042_ Modular pump line heaters 451044_ Modular pump line heaters 453045_ Modular pump line heaters 4530470_ Modular pump line heaters 45104704_ Modular gas line heaters 44404706_ Modular gas line heaters 444050050_ Silicone rubber wire-wound elements 429050055_ Modular pump line heaters 451050100A_ Modular pump line heaters 449050100C_ Silicone rubber wire-wound elements 42905015_ Silicone rubber wire-wound elements 4290502_ Modular pump line heaters 4490503_ Modular pump line heaters 4490570_ Modular pump line heaters 451057120_ Silicone rubber conduit heaters 440057128A Modular pump line heaters 45106_ Modular pump line heaters 451062_ Coil and cable heaters 58107_ Modular pump line heaters 45108_ Modular pump line heaters 45109_ Modular pump line heaters 451094_ Coil and cable heaters 5811 Thermostats10 Thermostats100_ Modular pump line heaters 450102_ Coil and cable heaters 581104_ Modular pump line heaters 45111 Thermostats11_ Modular pump line heaters 451120_ Modular pump line heaters 452125_ Coil and cable heaters (ex: 125CH38A18X) 588128_ Coil and cable heaters 5811281_ Modular pump line heaters 45112A Thermostats14825081 Silicone rubber conduit heaters 440157_ Coil and cable heaters (ex: 157CH124AX) 588188_ Coil and cable heaters 5812 Thermostats2A Thermostats3 Thermostats3A Thermostats4 Thermostats5 Thermostats5A Thermostats62H_ Stock coil and cable heaters (ex: 62H36A5X) 5877 Thermostats7A Thermostats8 Thermostats9 Thermostats94PC_ Stock coil and cable heaters (ex: 94PC30A1X) 587B_ Mica band heaters (ex: B2J1JP3) 537Code PageNumber Description Number651651651651651651651651651651651651651651651WATLOW8Code Number IndexBCC_ WATROD - screw plug Immersion heaters 131-133BCN5_ Liquid level sensors 657BCS_ WATROD - screw plug immersion heaters 163-164BDNF_ FIREBAR - screw plug immersion heaters 136-138,148, 149,167-169,177, 178,187, 188BEC_ WATROD - screw plug immersion heaters 134-135BEN_ WATROD - screw plug immersion heaters 157-158BES_ WATROD - screw plug immersion heaters 165-166BGC_ WATROD - screw plug immersion heaters 139-141BGN_ WATROD - screw plug immersion heaters 150-152BGS_ WATROD - screw plug immersion heaters 170-172BHC_ WATROD - screw plug immersion heaters 139-141BHN_ WATROD - screw plug immersion heaters 150-152BHNA_ WATROD - screw plug immersion heaters 159-160BHNB_ WATROD - screw plug immersion heaters 196-197BHS_ WATROD - screw plug immersion heaters 170-172BHSS_ WATROD - screw plug immersion heaters 179-181BLC_ WATROD - screw plug immersion heaters 142-143BLN_ WATROD - screw plug immersion heaters 182-184BLNA_ WATROD - screw plug immersion heaters 161-162BLNF_ FIREBAR - screw plug immersion heaters 144, 155,156, 175,176, 185,186, 191,192BLR_ WATROD - screw plug immersion heaters 145-147BLS_ WATROD - screw plug immersion heaters 173, 174,189, 190C_ 18 in. FIREROD heaters (ex: C1E-921) 13CBDNF_ FIREBAR - screw plug circulation heaters 339, 346,358, 367,372CBEC_ WATROD - screw plug circulation heaters 339CBEN_ WATROD - screw plug circulation heaters 352CBES_ WATROD - screw plug circulation heaters 358CBLC_ WATROD - screw plug circulation heaters 339CBLN_ WATROD - screw plug circulation heaters 346, 367CBLNA_ WATROD - screw plug circulation heaters 352CBLNF_ FIREBAR - screw plug circulation heaters 346, 359,367, 373CBLR_ WATROD - screw plug circulation heaters 344CBLS_ WATROD - screw plug circulation heaters 359, 372CER_ ULTRAMIC heaters (ex: CER-1-01-00002) 471CFBLKT_ Ceramic fiber insulation blanket 486CFMC_ WATROD - ANSI flange circulation heaters 340CFMN_ WATROD - ANSI flange circulation heaters 347, 368CFMNA_ WATROD - ANSI flange circulation heaters 353CFMS_ WATROD - ANSI flange circulation heaters 360, 373CFNC_ WATROD - ANSI flange circulation heaters 342CFNN_ WATROD - ANSI flange circulation heaters 348, 369CFNNA_ WATROD - ANSI flange circulation heaters 354-355CFNS_ WATROD - ANSI flange circulation heaters 361-362,374CFOC_ WATROD - ANSI flange circulation heaters 341CFON_ WATROD - ANSI flange circulation heaters 347, 368CFONA_ WATROD - ANSI flange circulation heaters 354CFONF_ FIREBAR - ANSI flange circulation heaters 348, 361,368, 374CFOR_ WATROD - ANSI flange circulation heaters 344CFOS_ WATROD - ANSI flange circulation heaters 360, 374CFPC_ WATROD - ANSI flange circulation heaters 343CFPN_ WATROD - ANSI flange circulation heaters 349, 369CFPNA_ WATROD - ANSI flange circulation heaters 355-356CFPNF_ FIREBAR - ANSI flange circulation heaters 350, 363,364, 370,375CFPR_ WATROD - ANSI flange circulation heaters 345CFPS_ WATROD - ANSI flange circulation heaters 362-363,375CFRC_ WATROD - ANSI flange circulation heaters 343CFRN_ WATROD - ANSI flange circulation heaters 350, 370CFRNA_ WATROD - ANSI flange circulation heaters 356CFRS_ WATROD - ANSI flange circulation heaters 364-365, 376CFSN_ WATROD - ANSI flange circulation heaters 351, 371CFSNA_ WATROD - ANSI flange circulation heaters 357CFSS_ WATROD - ANSI flange circulation heaters 366, 376CFTN_ WATROD - ANSI flange circulation heaters 351, 371CFTNA_ WATROD - ANSI flange circulation heaters 357CFTS_ WATROD - ANSI flange circulation heaters 366, 377CFWN_ WATROD - ANSI flange circulation heaters 351, 371CFWNA_ WATROD - ANSI flange circulation heaters 357CFWS_ WATROD - ANSI flange circulation heaters 366, 377CH_ STARFLOWcirculation heaters (ex: CHJTJT3000JXJA) 312CPBP_ WATROD - engine preheaters 382-383CPCP_ WATROD - engine preheaters 383D_ WATROD - duct heaters 394-398E_ 14 in. FIREROD heaters (ex: E3A-12003) 13EN_ WATROD - enclosure heaters 416F01_ Silicone rubber etched foil elements 431F02_ Silicone rubber etched foil elements 431F03_ Silicone rubber etched foil elements 431F04_ Silicone rubber etched foil elements 431F05_ Silicone rubber etched foil elements 431F06_ Silicone rubber etched foil elements 431FAN_ FIREBAR heaters 115FBN_ FIREBAR heaters 113-114FENFB_ FIREBAR - square flange immersion heaters 277FGNFB_ FIREBAR - square flange immersion heaters 278FHN_ WATROD - square flange immersion heaters 276FHNFA_ FIREBAR - square flange immersion heaters 277FHNFB_ FIREBAR - square flange immersion heaters 277FKC_ WATROD - plate flange immersion heaters 271FKN_ WATROD - plate flange immersion heaters 271, 274FKS_ WATROD - plate flange immersion heaters 273, 274FLN_ WATROD - plate flange immersion heaters 270, 272FMC_ WATROD - ANSI flange immersion heaters 205FMN_ WATROD - ANSI flange immersion heaters 215FMNA_ WATROD - ANSI flange immersion heaters 226FMS_ WATROD - ANSI flange immersion heaters 236, 258FNC_ WATROD - ANSI flange immersion heaters 207-208FNN_ WATROD - ANSI flange immersion heaters 218-219FNNA_ WATROD - ANSI flange immersion heaters 228-229Code PageNumber Description NumberCode PageNumber Description Number9 WATLOWCode Number IndexFNS_ WATROD - ANSI flange immersion heaters 239-240, 261FOC_ WATROD - ANSI flange immersion heaters 206FON_ WATROD - ANSI flange immersion heaters 216FONA_ WATROD - ANSI flange immersion heaters 227FONF_ FIREBAR - ANSI flange immersion heaters 217, 238250, 260FOR_ WATROD - ANSI flange immersion heaters 212FOS_ WATROD - ANSI flange immersion heaters 237, 259FPC_ WATROD - ANSI flange immersion heaters 209-210FPN_ WATROD - ANSI flange immersion heaters 220-221FPNA_ WATROD - ANSI flange immersion heaters 230-231FPNF_ FIREBAR - ANSI flange immersion heaters 222, 243,253, 263FPR_ WATROD - ANSI flange immersion heaters 231-214FPS_ WATROD - ANSI flange immersion heaters 241-242,262FRC_ WATROD - ANSI flange immersion heaters 211FRN_ WATROD - ANSI flange immersion heaters 223FRNA_ WATROD - ANSI flange immersion heaters 232FRS_ WATROD - ANSI flange immersion heaters 244, 264FSA_ FIREBAR heaters 117FSN_ WATROD - ANSI flange immersion heaters 224FSNA_ WATROD - ANSI flange immersion heaters 233FSP_ FIREBAR heaters 116FSS_ WATROD - ANSI flange immersion heaters 245, 265FTN_ WATROD - ANSI flange immersion heaters 224FTNA_ WATROD - ANSI flange immersion heaters 234FTS_ WATROD - ANSI flange immersion heaters 246, 266FWN_ WATROD - ANSI flange immersion heaters 225FWNA_ WATROD - ANSI flange immersion heaters 235FWS_ WATROD - ANSI flange immersion heaters 247, 267G_ 38 in. FIREROD heaters (ex: G2N-4950) 13J_ 12 in. FIREROD heaters (ex: J10J-10145) 13K0_ Polyimide heaters 456K492-000_ Thermostat - conversion kits 653L_ 58 in. FIREROD heaters (ex: L12A-6489) 13L0_ Silicone rubber wire-wound elements 434L10_ Silicone rubber wire-wound elements 434L20_ Silicone rubber wire-wound elements 434LDH_ WATROD - duct heaters 392-393M6_ WATROD - duct replacement modules 404MB_ MI band heaters (ex: MB2A1JN3) 505MBLK_ Duct blank module cover 404MDH_ WATROD - duct heaters 403ME_ Expandable MI band heaters 505MR3A_ Radiant MI strip emitters (ex: MR3A10AP1) 638MRP_ RAYMAX 1330 panel heaters (ex: MRP1224AX005) 627MS_ MI strip heaters (ex: MS1J8AS1) 553MT_ Two piece MI band heaters 505MTC_ Duct thermocouple replacement kits 404N_ 34 in. FIREROD heaters (ex: N8E-3912) 13OLDN_ WATROD - drum immersion heaters 292OLN_ WATROD - L-shaped immersion heaters 284OLS_ WATROD - L-shaped immersion heaters 284ORN_ WATROD - O-shaped immersion heaters 284ORS_ WATROD - O-shaped immersion heaters 284P_ RAYMAX 1120 panel heaters (ex: P1224AX062) 621PL11_ Thermostats - pilot light 653PWS_ Thermowells 658RAN_ WATROD heaters 88RBC WATROD heaters 91RBN_ WATROD heaters 87, 88RBR_ WATROD heaters 90RBS_ WATROD heaters 87RCN_ WATROD heaters 87, 89RDN_ WATROD heaters 89, 90RDN_ Replacement tubular elements for radiant heaters 635-638RG1_ RAYMAX 1525 tubular reflector heaters 636RGC_ WATROD heaters 91RGN_ WATROD heaters 90RGNA_ WATROD heaters 87RGS_ WATROD heaters 88RGR_ WATROD heaters 90RGSS_ WATROD heaters 87RQ_ Quartz tube heaters 636RR_ RAYMAX 1525 replacement reflectors 635RS_ RAYMAX 1525 tubular reflector heaters 636RT_ RAYMAX 1525 tubular reflector heaters 635RU_ RAYMAX 1525 tubular reflector heaters 635S_ Mica strip heaters (ex: S1J8AT1) 557SF_ RAYMAX 1010 panel heaters (ex: SF0410A0A005) 619SGA1J_ 375 strip heaters 571SGS1J_ 375 strip heaters 567ST_ 1 in. FIREROD heaters (ex: ST20A-1234) 13STB_ THINBAND mica heaters 527TFA_ Thick film - conduction heaters 578TQ_ Thick film - quartz heaters 309VC_ Ceramic fiber heaters 492VF_S Ceramic fiber heaters 493VF_T Ceramic fiber heaters 496VLN_ WATROD - vertical loop immersion heaters 289VLR_ WATROD - vertical loop immersion heaters 289VLS_ WATROD - vertical loop immersion heaters 289VLT_ WATROD - vertical loop immersion heaters 289VP504_F RAYMAX 1220 heaters 623VP504_T RAYMAX 2030 heaters 623VS_S Ceramic fiber heaters 494VS_T Ceramic fiber heaters 497Code PageNumber Description NumberCode PageNumber Description NumberWATLOW1011 WATLOWCartridge/Insertion HeatersFIRERODCartridge Heaters ................................13High-Temperature FIREROD Heaters...................47Metric FIREROD Cartridge Heaters......................49Metric EB Cartridge Heaters.................................59MULTICELL Heaters...............................................65Cartridge/Insertion Heaters12 WATLOW13 WATLOWCartridge/Insertion HeatersFIRERODCartridge HeatersApplications Molds Dies Platens Hot plates Sealings Fluid heating Life sciences Aerospace Semiconductor Foodservice equipmentNickel-ChromiumResistance WireMagnesiumOxide InsulationConductor PinsWatlowFIRERODcartridge heaters revolutionized theheating element industry in 1954 when it was patented asthe first swaged cartridge heater. With premium materialsand tight manufacturing controls, the FIREROD heatercontinues to provide superior heat transfer, uniformtemperatures and resistance to oxidation and corrosioneven at high temperatures.FIREROD offers many delivery programs to meetyour needs: same day shipment, ship-to-stock orjust-in-time. Watlows experience in customizedengineering is reflected in over 250,000 FIRERODcartridge heater designs. Stock or made-to-order,the Watlow FIREROD delivers heat in a hurry.Performance Capabilities Part temperatures to 1400F (760C) on Incoloysheath Part temperatures to 1000F (540C) on optionalstainless steel sheath Watt densities to 400 W/in2(62 W/cm2)Features and BenefitsNickel-chromium resistance wire Assures even, efficient distribution of heat to the sheathConductor pins Ensures trouble-free electrical continuityMagnesium oxide insulation of specific grain andpurity Results in high dielectric strength and contributes tofaster heat-upIncoloysheath Resists oxidation and corrosion from many chemicals,heat and atmospheresMinimal spacing between the element wire andsheath Results in lower internal temperature, giving you theability to design with fewer or smaller heaters thatoperate at higher watt densitiesULand CSA approved flexible stranded wires Insulates the wires to temperatures of 480F (250C)Patented lead adapter (LA) method Allows same day shipment on more than 150,000configurations of stock FIREROD heaters and leadcombinationsIncoloySheathCartridge/Insertion HeatersFIREROD Cartridge HeatersApplications and Technical DataWATLOW14TolerancesDiameter 1 in. (25 mm) units: 0.003 in. (0.08 mm) All other units: 0.002 in. (0.05 mm)Length All units to 412 in. (115 mm) long: 332 in. (2.4 mm)18 in. diameter units over 412 in. (115 mm)long: 3% All other units over 412 in. (115 mm) long: 2%Wattage18 in. units: +10%, -15% All other units: +5%, -10%Resistance18 in. units: +15%, -10% All other units: +10%, -5%Resistance changes with temperature. There are threecircumstances under which resistance can be measured:1. Room temperature (before use): nominal ohms are90% of ohms law calculation.2. Room temperature (after use): nominal ohms are95% of ohms law calculation.3. At temperature (during use): depending on applicationnominal ohms are approximately 100% of ohms law.CamberUnits to 12 in. (305 mm) long: 0.005 in. (0.1 mm) per6 in. (152 mm) length. Standard camber tolerance variesas the square of the length, in feet, is multiplied by0.020 in. (0.5 mm). For example, a 36 in. (914 mm)FIREROD has a camber tolerance of 0.020 in. x (3)2=0.180 in. Normally, slight camber does not present aproblem since the heater will flex enough to fit into astraight, close fit hole.18 0.122 (3.1) 114 (32.0) 12 (305)14 0.246 (6.3)78 (22.2) 36 (915)38 0.371 (9.4)78 (22.2) 48 (1220)12 0.496 (12.6)78 (22.2) 60 (1520)58 0.621 (15.8) 114 (25.0) 72 (1830)34 0.746 (18.9) 114 (25.0) 72 (1830)1 0.996 (25.3) 114 (32.0) 72 (1830)FIREROD Diameter LengthNominal Actual Min. Max.in. in. (mm) in. (mm) in. (mm)Indicates recommended maximum length; however longer lengthsmay be available.Dimensional DataThis table gives minimum/maximum lengths for availableFIREROD diameters.Component Recognition File Numbers ULcomponent rated to 240V(ac) CSA component rated to 240V(ac) VDE component rated to 240V(ac)Note: Not all options or combination of options arecovered. UL, CSA and VDE marking is availableupon request.15 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersApplications and Technical Data (Continued)18 240 3.1 8 5 360 720 14 240 4.42100 55 40 525 1050 38 240 6.7 65 35 25 800 1600 512 240 9.7 40 25 20 1160 2320 558 480 23.0 35 20 15 2760 5520 11,000 534 480 23.0 30 15 10 2760 45520 11,000 9550 19,1001 480 23.0 15 10 2760 45520 11,000 9550 419,1004Diameterin. 1-phase 3-phaseNumber Of Circuits 61/4 in. (6 mm)NominalNo-Heat1/4 in. (6 mm)NominalNo-Heat12 in. (305 mm)Dia.Heated LengthThe table below will assist you in selecting the correctFIREROD heater for your application, according to available voltage, amperage and wattage. 34 3 11 5 2aDetermined by the current carrying capacity of standard internal partsand standard lead wire. Alternate material may be available.2For 14 in. (6 mm) units with thermocouple maximum amperage is 3.1A.3Determined by the limitation of space for resistance winding. For minimum wattage of 240V(ac) multiply value by four.4Higher wattages are available using more than one set of powerleads. Multiply the wattage from the table by the applicable factor.5Contact your Watlow representative for data.6On 34 in. (19 mm) diameter units, either three single- phase circuits or one three-phase delta or wye circuit is available. On 1 in. (25 mm)diameter units, either five single-phase or two three-phase delta circuits are available.Electrical Data FIREROD Min. Watts @ 120V 3Max. WattsDiameter Volts Ampere Heater Lengthin. Max. Max. a1 in. 112 in. 2 in. 120V 240V 480V 240V 480V(25 mm) (38 mm) (50 mm) 1-phase 1-phase 1-phase 3-phase 3-phasePlease note, some combinations of minimum and maximum wattages are not available on the same heaterdiameter. Also, if you need to exceed limitations shown,contact your Watlow representative. 16 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersMaximum Allowable Watt DensityFit in Holein.Watt DensityW/in20.1000.0900.0800.0700.0600.0500.0400.0300.0200.0100.0090.0080.0070.0060.0050.0010.0020.0030.00410 20 30 40 50 60 70 80 100 200 300 400 500 600 800 10001400F (760C)1200F (649C)1000F (538C)800F (427C)600F (316C)400F (204C)200F (93C)Maximum Allowable Watt DensityHeating MetalsFitHole Cartridge HeaterHeating MetalsThe Maximum Watt DensityHeating Metals chart willshow you either the maximum hole fit or recommendedwatt density of the heater. Enter the chart with eitherknown variable, part fit in hole dimension or W/in2. Thenfind the application temperature by reading up or over on the chart. If the fit of the heater in the hole dimension is not known,it is easily determined. Subtract the minimum diameter of the FIREROD (nominal diameter minus tolerance) fromthe maximum hole diameter. For example, take a hole diameter of 0.500 (13 mm) minus a heater diameter of 0.496 in. (12.6 mm) 0.002 in. (0.05 mm). The hole fitwould be 0.006 in. (0.15 mm). For FIREROD heaters in square holes or grooves, contact your Watlow representative for the fit in hole dimension.The following four charts detail maximum allowable wattdensities for applications involving metal, steam, air or gasheating. Please review these respective charts and appli-cable data to determine the correct watt density for yourapplication. Fit in hole = maximum hole I.D. minusminimum heater O.D.Correction FactorsAlso note, these graphs depict FIRERODs used in steelparts. Therefore, for either stainless steel, aluminum orbrass, refer to applicable correction factors:1. For stainless steel, enter the graph with a fit 0.0015 in. (0.04 mm) larger than actual.2. For aluminum and brass, enter the graph with a temperature 100F (38C) above actual temperature.17 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersMaximum Allowable Watt Density (Continued)10 20 30 40 50 60Firerod Sheath TemperatureF Watt DensityW/in2200015001000500Not Pre-oxidizedPre-oxidized160014001200100080060040020010 20 30 40 50 60Ambient TemperatureF Watt DensityW/in2Watt Density vs. Ambient Air TemperatureThe Watt Density vs Ambient Air Temperature graphshows the maximum allowable watt density when oneFIREROD is operated in air or similar gas.For FIRERODs grouped in a single row, with no less thanone diameter between elements, multiply value fromgraph by 0.95. When a reflector is placed behind theheaters, multiply the maximum allowable watt densityvalue from the graph by 0.85.Sheath Temperature in Ambient AirThe Sheath Temperature in Ambient Air graph indicatesthe watt density required to bring a pre-oxidized FIREROD to a given sheath temperature when operated in 70F (21C) ambient air.At 44 W/in2(6.8 W/cm2), the sheath temperature would be1450F (784C). At this temperature, one year life wouldbe expected, provided that cycling is not too frequent.Higher temperatures would result in reduced heater life.Maximum Allowable WattDensity vs. Ambient Air20 40 60 80 100 120Air Velocity Past HeaterFPMWatt DensityW/in225001500500300035004000450020001000140FIRERODPerpendicular To Air FlowEntering AirUp To 200FFIRERODParallel To Air FlowWatt Density in Moving AirThe Watt Density in Moving Air graph gives the maximumallowable watt density of a FIREROD in moving air.The air movement is expressed in feet per minute (FPM).If the air flow is known in cubic feet per minute (CFM),divide the CFM by the net free area around the heater (ft2).The net free area is the total area of the enclosure minusthe area occupied by the heater.FIREROD Sheath Temperature When Operated in 70F Ambient Air Maximum Allowable Watt Density in Moving Air 18 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersLead and Diameter Information18 24 300 482F (250C) 1 392F (200C) 0.044 - 0.058 0.036 - 0.044181814 24 300 842F (450C) 392F (200C) 0.066 - 0.078 0.050 - 0.0585321838 22 300 842F (450C) 392F (200C) 0.076 - 0.088 0.056 - 0.06473231612 18 300 842F (450C) 392F (200C) 0.089 - 0.101 0.074 - 0.0849321458 18 fiberglass 2 600 842F (450C) 392F (200C) 0.108 - 0.124 0.097 - 0.1137163814 Teflon34 18 fiberglass 2 600 842F (450C) 392F (200C) 0.108 - 0.124 0.097 - 0.1137163814 Teflon1 18 600 482F (250C) 1 392F (200C) 0.095 - 0.109 0.087 - 0.101 NA NAMax.TemperatureFiberglassMax.TemperatureTeflonSizeToleranceFiberglassSizeToleranceTeflonHeater Diameterin. GaugeMax.VoltageStandard Lead Specifications26 2.5 4.2 6.024 stranded 3.1 5.2 7.524 solid 3.1 5.2 7.522 4.4 7.2 10.520 N/A N/A 14.018 7.6 12.6 18.016 9.7 16.1 23.014 12.5 21.0 30.012 16.8 28.0 40.010 23.0 38.5 55.0Lead Gauge Nickel Ampacity N.C.C. Ampacity SPC/NPCLead length tolerances: 1 to 36 in. (25 to 914 mm) = -12 in. (13 mm), +112 in. (38 mm) > 36 to 72 in. (914 to 1829 mm) = -1, +3 in. (-25 + 76 mm) > 72 in. (1829 mm) = 4 in. (102 mm) SS hose and braid tolerances: same as lead wire.Units constructed with 480V require MGT or Teflonleads. If connectingheaters in series above 300V, MGT leads are also required.StandardSS HoseI.D.StandardSS BraidI.D.Ratings: GGS, 300V, 482F (250C) MGT, 600V, 842F (450C)Teflon, 600V, 392F (200C)Silicone rubber, 600V, 302F (150C)1 842F (450C) MGT fiberglass lead wire available.2 14 gauge GGS fiberglass leads available for 58 and 34 in. diameters (0.155 to 0.163 O.D.)Additional Lead Specifications19 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersNon-Lead Adapter (LA) StockModification CodingWatlow offers heaters in various diameters, lengths andvolt-wattage combinations that are ready for shipping.Any stock heaters can have basic modifications madeand shipped the same day. These modifications includeflanges, threaded fittings, locating rings, ceramic beadsand crimped on leads. The following is a list of all avail-able non-LA modifications and their code numbers.Mounting Option CodesBA - Small flange FS (available on 18, 14, 38 and 12 in.)BB - Medium flange FM (available on 14, 38, 12, 58 and 34 in.)BC - Large flange FL (available on 58 and 34 in.) BD - Locating ring (available on 14, 38, 12, 58 and 34 in.)BE - Single brass fittingBF - Double brass fittingBG - Single stainless steel fittingBH - Double stainless steel fittingBY - Stainless steel reversedBZ - Brass reversedPin Option Codes AA - Short pins 516 in. (7.9 mm) AB - Medium pins 58 in. (15.9 mm) AC - Long pins 134 (45 mm)AD - Stagger pins AE - Ceramic beads 12 in. (13 mm)AF - Ceramic beads 34 in. (19 mm)AG - Ceramic beads 1 in. (25 mm)AH - Ceramic beads 114 in. (32 mm)AJ - Ceramic beads 112 in. (38 mm)20 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersLead Adapter (LA) StockTermination OptionsPatented LA Modification Method0.250 +0.063 -0.000To Configure a FIREROD With Swaged-inLeadsWatlow: Cuts the pins off Welds the leads to pins Places an LA cap over the lead end of the heater Swages the heater to produce a rugged unit with swaged-in leadsWatlow has developed a patented LA program for customers in need of heaters quickly. The LA programtakes a stock heater adds leads and lead protection, ifrequested. The LA adder has a standard 12 in. (305 mm)of protection and 14 in. (356 mm) of leads, but additionallengths can be added. The leads and protection can alsobe attached in a right angle configuration for applicationswith restricted space.LA configurations are permanently attached to the heater.Most configurations can be ordered with no-heat extensions. These can also have mounting options including flanges, threaded fittings or locating rings.LA adders can be used on either stock heaters or made-to-order heaters. The LA adders usually take one to three days to ship.1000F (538C) maximum on LA capLA options available on 38 to 34 inch diameters. Notes: Limited LA options available on 14 inch diameter. Maximum temperature of LA cap is 1000F (538C) except for mineral insulated (MI) leads option.21 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersLA StockTermination Options (Continued)LA swaged-in flexible leads are used in applications where a high degree of flexing exists or the leads must be bent sharply adjacent to the heater without exposingor breaking the conductor. The stranded wire leads are connected internally and exit through the lead end. The overall length of the heater is extended by 14 in. (6 mm). To order, specify length adder code E bringing the total lead end no-heat to 12 in. (13 mm).This LA option is not available on 18 in. (3.2 mm) diameter.On 18 in. (3.2 mm) diameter FIRERODs, leads are connected externally using a solid conductor lead wire. If stranded wire is desired on 18 in. (3.2 mm) diameterunits, contact your Watlow representative.Min. No-Heat 1/2 in.(13 mm)No-Heat LengthRight Angle (Swaged-in) Leads Swaged-in Leads No-Heat LengthNo-heat extensions are recommended in applicationswhere leads may be exposed to excessive heat, thusrequiring a cooler lead end. Also used when heat is notrequired along the entire length of the FIREROD.No-heat extensions are available for most LA stockoptions in diameters of 38,12,58 and 34 in. (9.5, 13, 15.9 and 19 mm). These extensions are designed to provide a totalno-heat length of 1, 112, 2 or 212 in. (25, 38, 51 or 65 mm)at the lead end of stock FIRERODs only. Contact yourWatlow representative for available LA options.LA silicone rubber seal and leads protect the heateragainst moisture/contamination from lubricating oil, cleaning solvents, plastic material or fumes and organictapes. This seal is effective to 300F (149C) under continuous operation.Please note when ordering this option, that a minimumno-heat section is required to allow for construction.Additional no-heat may be required to keep the sealbelow effective temperatures. The minimum lead end no-heat is one in. The LA cap adds 34 in. (19 mm) to the overall length. To order, specify option code P.Min. No-Heat 1 in.(25 mm)LA Teflonseal and leads protect the heater against moisture/contamination from lubricating oil, cleaning solvents, plastic material or fumes and organic tapes. This seal is effective to 400F (204C) under continuousoperation.Please note when ordering this option, that a minimumno-heat section is required to allow for construction.Additional no-heat may be required to keep the sealbelow effective temperatures. The minimum lead end no-heat is 1 in. (25 mm). The LA cap adds 34 in. (19 mm) to the overall length of the heater. To order, specify option code T.Min. No-Heat 1 in. (25 mm)LA Swaged-in Flexible LeadsNo-Heat ExtensionsLA TeflonSeal and LeadsLA Silicone Rubber Seal and Leads22 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersLA StockTermination Options (Continued)Mineral Insulated (MI) LeadsMI leads handle both high temperatures and contamination, and resist other problems like abrasionand excessive vibration. The metal seal and swaged-in,formable MI cable leads are capable of handling temperatures up to 1500F (815C). In addition, the lead end seal resists moisture and other forms of contamination, including gases, oils, plastic drool, solvents and water.The Watlow FIREROD with the patented MI lead and seal option is covered by a two-year limited warranty. This extended warranty for this product only applies to manufacturing defects or failures due to over-temperatureor product failure due to contamination.This LA option is also available as a manufactured item.Specify MI leads and seal, as well as volts, watts, cablelength, lead length and type. Unless specified a 6 in. (152 mm) of MI cable and 12 in. (305 mm) of Teflonleads will be supplied. To order, specify option code J."Metal to Metal Seal"Nickel ConductorMineral Insulation304 SS SheathTransitionProduct Benefits Increases heater life Less down time No need for a soft start due to moisture penetration Ability to use a cartridge heater where not possiblebefore Abrasion and vibration resistant Able to be formed or bent to fit the contours of wiringraceways No additional insulation of lead wires is needed to protect against high temperatures Lead cables and seal will not out-gas in vacuum environmentsApplications Vacuum forming Plastic molding Medical device manufacturing Food handling equipment Zinc die-castingTechnical DataMax. temp. of cable: 1500F (813C)Max. temp. of cable to lead transition: 300F (149C)(where flexible leads attach to cable)Cable sheath material: 304 SSConductor material: nickelMax. voltage: 240VLead TypesTeflon392F (200C) TSilicone rubber 300F (149C) SGGS 482F (250C) No codeMGT 842F (450C) HHeater Max. Conductor Cable Transition Cable Length Max.Diameter Current Diameter Diameter Diameter Min. Max. Min. Voltage Lengthin. Amperes in. in. in. in. Bend Radius in. AdderThe above information pertains to standard FIREROD heaters. However, variations in these parameters may be accommodated to suit specific customer needs.38 7.0 0.044 0.108 0.230 6 72 0.225 240 G (3/8)12 7.0 0.044 0.108 0.230 6 72 0.225 240 K (9/16)58 9.7 0.062 0.138 0.250 6 72 0.280 240 L (5/8)34 9.7 0.062 0.138 0.250 6 72 0.280 240 L (5/8)23 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersLA StockTermination Options (Continued)LA straight stainless steel braid is designed to protectleads from abrasion against sharp edges. It is the mostflexible of Watlows protective lead arrangements.Unless specified, 12 in. (305 mm) braid is supplied.Standard leads are 2 in. (51 mm) longer than braid, butlonger leads are available.Minimum lead end no-heat required is 34 in. (19 mm).Option adds 12 in. (13 mm) to overall length on stockunits. To order, specify option code C. Min. No-HeatMin. No-HeatMin. No-HeatMin. No-Heat 1 in.(25 mm)Min. No-HeatMin. No-HeatMin. No-HeatMin. No-Heat 1 in.(25 mm)LA straight stainless steel hose provides the best protection against abrasion from sharp edges. It alsooffers ease of handling and wiring in abrasive environments. Unless specified, 12 in. (305 mm) hose is supplied. Leads are 2 in. (51 mm) longer than hose as a standard but, longer leads are available.Minimum lead end no-heat required is 34 in. (19 mm).Option adds 12 in. (13 mm) to overall length on stockunits. To order, specify option code H. Min. No-HeatMin. No-HeatMin. No-HeatMin. No-Heat1 in.(25 mm)Min. No-HeatLA straight stainless steel hose with Teflonleads and sealprovides the ultimate combination of abrasion protectionand a moisture resistant seal. Unless specified, standard12 in. (305 mm) hose is supplied. Leads are 2 in. (51 mm)longer than hose as a standard but, longer leads areavailable. Minimum lead end no-heat required is 1 in. (25 mm).Option adds 34 in. (19 mm) to overall length on stockunits. To order, specify option code G.LA straight stainless steel braid with Teflonleads andseal provides Watlows most flexible lead protection with amoisture resistant seal. Unless specified, 12 in. (305 mm)braid is supplied. Leads are 2 in. (51 mm) longer than thebraid as a standard but, longer leads are available.Minimum lead end no-heat required is 1 in. (25 mm).Option adds 34 in. (19 mm) to overall length on stockunits. To order, specify option code F.LA Straight Stainless Steel Hose LA Straight Stainless Steel BraidLA Straight Stainless Steel Hose withTeflonLeads and SealLA Straight Stainless Steel Braid withTeflonLeads and Seal24 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersLA StockRight Angle OptionsLA right angle leads are used in applications with a highdegree of flexing and when space limitations are critical.Stranded lead wires are connected internally (swaged-in)and exit at a 90 degree angle at the end of the heater.To order, specify option code R. Min. No-HeatMinimum No-Heat Requiredin. (mm)Dia.1438125834In.1316 (20.6)34 (19.0)1316 (20.6)1316 (20.6)1316 (20.6)LA right angle stainless steel hose is provided for wiringconvenience. Like the LA straight stainless steel hose, itprotects leads from abrasion against sharp edges. Unlessspecified, 12 in. (305 mm) hose is supplied. Standardleads are 2 in. (51 mm) longer than hose, but longer leadsare available. To order, specify option code W. Option adds 34 in. (19 mm) to overall length. Minimum lead end no-heat is 1 in (25 mm). Note: Option is not available on 14 in. (6 mm) diameter.Min. No-HeatMin. No-HeatMin. No-HeatMin. No-Heat1 in.(25 mm)Min. No-Heat 1 in.(38 mm)LA right angle stainless steel hose with Teflonleads andseal provides the ultimate combination of abrasion protection and a moisture resistant seal with wiring convenience. Unless specified, 12 in. (305 mm) hose is supplied. Leads are 2 in. (51 mm) longer than hose as a standard, but longer leads are available. Minimum lead end no-heat required is 112 in. (38 mm).Option adds 114 in. (32 mm) to overall length on stockunits.To order, specify option code M. Note: Option is not available on 14 in. (6 mm) diameter.LA Right Angle LeadsLA Right Angle Stainless Steel HoseLA Right Angle Stainless Steel Hose withTeflonLeads and SealTo order right angle leads with Teflonleads and seals,specify option code B. Note: Option is not available on 14 in. (6 mm) diameter.Minimum no-heats are longer, contact your Watlow representative.25 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersLA StockRight Angle Options (Continued)LA right angle stainless steel braid is provided for wiringconvenience. Like the LA straight braid, it protects leadsfrom abrasion against sharp edges.Unless specified, 12 in. (305 mm) braid is supplied.Standard leads are 2 in. (51 mm) longer than braid, butlonger leads are available. To order, specify option code Y. Option adds 34 in. (19 mm) to overall length. Minimum lead end no-heat is 1 in. (25 mm) Note: Option is not available on 14 in. (6 mm) diameter.Min. No-HeatMin. No-HeatMin. No-HeatMin. No-Heat 1 in.(25 mm)LA Right Angle Stainless Steel BraidMin. No-Heat 1 in.(38 mm)LA right angle stainless steel braid with Teflonleads andseal provides Watlows most flexible lead protection andmoisture resistant Teflonseal with wiring convenience.Unless specified, 12 in. (305 mm) braid is supplied.Standard leads are 2 in. (51 mm) longer than the braid,but longer leads are available.Minimum lead end no-heat required is 112 in. (38 mm).Option adds 114 in. (32 mm) to overall length on stock units.To order, specify option code A. Note: Option is not available on 14 in. (6 mm) diameter.STD Fitting aLead LocationArrangement Dimension Ain. (mm)Threaded fittings allow for fast, water-tight installation ofthe heater into a threaded hole. These fittings can beordered in either brass or 304 stainless steel. Other stainless steel alloys are available upon request. Doublethreaded fittings are also available.To order, specify either brass or stainless steel threaded fittings. On LA stock give location of fittings, if no-heat extensionoption is requested. Specify location from disc end to bottom of threads.Crimped LeadsSwaged in LeadsSTR SS HoseSTR SS BraidTeflonSeal & LDSSilicone Seal & LDS14 (6)516 bd(8)12 c(13)12 (13)78 (22)78 (22)a The location of the threaded fitting from thread end of fitting to thelead end of heater.All optional fitting locations are available only with LA stock no-heatextensions. Contact your Watlow representative for details.b On 14 in. diameter FIREROD only A dimension is 716 in. (11.1 mm).c On 14 in. diameter FIREROD only A dimension is 58 in. (15.9 mm).4 On 58 in. and 34 in. the fitting is located at 78 in. from lead end using a 34 no-heat extension. In order to locate at 516 in. the fitting must be epoxied. Standard Fitting Location AOptional Fitting Location BMinimum UnheatedFitting overlaps the unheated section and is silver soldered to the sheath.LA Right Angle Stainless Steel Braid withTeflonLeads and SealMounting Options LA Stock Threaded Fittings26 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersLA StockMounting Options (Continued)HC D in. (1.6 mm)Stainless steel flanges are a convenient mounting methodas well as a way to position a heater within an application.The standard flange is staked on and located 14 in. (6 mm)from the lead end. The flange can be located up to 214 in. (57 mm) from the lead end as long as it is over a no-heat section. Use this option in combination with most LA configurations. To order, specifiy flange, size and locations.FIREROD in. (mm)Diameter Flangein. Size D C H14, 38, 12 FS 1 (25.0)34 (19.0) 0.144 (3.7)14, 38, 12 58, 3458, 34, 1 FL 2 (51.0) 112 (38.0) 0.201 (5.1)FM 112 (38.0) 118 (28.5) 0.156 (4.0)Flange SpecificationsLocating Ring SpecificationsA stainless steel locating ring can be used as a retainingcollar to position a FIREROD if mounting requirements arenot critical.On LA Stock, give location if the no-heat extension optionis requested. On in-stock FIRERODs without an LAoption, location will be on the last 14 in. (6 mm). To order,specify locating ring.0.14 in. (3.6 mm)Flanges Locating RingRing O.D.in. (mm)12 (13.0)58 (15.9)34 (19.0)78 (22.2) 1 (25.0)Diameter143812583427 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersLA StockLA Stock OptionsLA options are available on all stock FIRERODs, except 18 in. diameter. To order any of these options, please buildthe order number by specifying Watlow code number,length adder code, option code and lead length.Ordering Example: The order number J12A89-N72W74 indicates you have ordered a 12 in. (305 mm) FIREROD with 72 in. (1830 mm) rightangle stainless steel hose and 74 in. (1880 mm) leads.The overall heater length equals 1234 in. (324 mm). Note: No-heat extensions are available for most LAoptions in diameters of 38,12,58 and 34 in. Contact yourWatlow representative for available LA options. No-heatlength extensions are available in the following dimensions. To order any of these dimensions, please specify theapplicable length adder code shown. No-heat extensions on all termination options are shipped withintwo to three days.Heater Diameter14 (6 mm)38 (9.5 mm)12 (13 mm) 58 (15.9 mm) 34 (19 mm) Swaged-in leads E14 (6 mm) E14 (6 mm) E14 (6 mm) E14 (6 mm) E14 (6 mm) NoneRight angle leads K916 (14.3 mm) J12 (13 mm) K916 (14.3 mm) K916 (14.3 mm) K916 (14.3 mm) RTeflonseal and leads N34 (19 mm) N34 (19 mm) N34 (19 mm) N34 (19 mm) TRight angle Teflonseal and leads N34 (19 mm) N34 (19 mm) N34 (19 mm) N34 (19 mm) BSilicone seal and leads N34 (19 mm) N34 (19 mm) N34 (19 mm) N34 (19 mm) PStraight hose J12 (13 mm) J12 (13 mm) J12 (13 mm) J12 (13 mm) J12 (13 mm) HRight angle hose N34 (19 mm) N34 (19 mm) N34 (19 mm) R78 (22.2 mm) WStraight hose with Teflonseal and leads N34 (19 mm) N34 (19 mm) N34 (19 mm) N34 (19 mm) GStraight braid J12 (13 mm) J12 (13 mm) J12 (13 mm) J12 (13 mm) J12 (13 mm) CRight angle braid N34 (19 mm) N34 (19 mm) N34 (19 mm) R78 (22.2 mm) YRight angle braid with Teflonseal and leads 1E 114 (32 mm) 1E 114 (32 mm) 1E 114 (32 mm) 1E 114 (32 mm) AStraight braid with Teflonseal and leads N34 (19 mm) N34 (19 mm) N34 (19 mm) N34 (19 mm) FRight angle hose with Teflonseal and leads 1E 114 (32 mm) 1E 114 (32 mm) 1E 114 (32 mm) 1E 114 (32 mm) MMinimum Length Adders Per Diameter Per Option OptionOption in. (mm) Code1 34 (19) N114 (32) 1E134 (44) 1N214 (56) 2ENo-Heat Length Adder CodesNo-HeatOption Lengthin. (mm) Adder CodeHow to OrderTo order Stock FIREROD cartridge heaters, specify: Watlow code number Quantity Options Lead length: if not specified, 12 in. (305 mm) crimpedon leads will be shipped.For made-to-order FIRERODs, please specify: Diameter Overall length Volts Watts LA Lead option and length or terminal configuration Lead end no-heat if different from standard Optional accessories, finishing, internal construction,sensors/controllers and mountingAvailability Stock: Same-day shipment on many FIREROD stockoptionsMade-to-Order: Contact your Watlow representative28 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersMade-to-OrderStraight OptionsSwaged-in flexible leads are used in applications where a high degree of flexing exists or the leads must be bentsharply adjacent to the heater without exposing or breaking the conductor. The stranded wire leads are connected internally and exit through the lead end.Standard lead wire type is high temperature fiberglass.The maximum temperature of the standard fiberglass endpiece is 842F (450C). Unless specified, 12 in. (305 mm)leads are supplied.Minimum lead end no-heat is 14 in. (6 mm). High amperage designs require longer lead end no-heat. Additional no-heat may be required to keep the end pieceand leads below maximum operating temperatures. in. ( 6 mm)No-HeatMin. No-Heat12 in. (305 mm)Standard Swaged-in Flexible Leads14 24 0 - 3.114 >3.171638 22 0 - 4.414 >4.471612 18 0 - 7.614 >7.671658 18 0 - 12.614 >12.61234 18 0 - 12.6716 >12.612Heater Standard Amperes Min. Amperes Min.Diameter Lead No-Heat No-HeatGauge (in.) (in.) in. (6 mm) No-Heat1 in. (25 mm) Min. No-HeatTeflonSeal and LeadsTeflonseal and leads protect the heater against moistureand contamination from cleaning solvents, plastic materialor fumes and organic tapes. This seal is effective to 392F (200C) under continuous operation.Teflonseal and leads will have a minimum lead endunheated section of 1 in. (25 mm). Additional no-heat maybe required to keep the seal below its maximum operatingtemperature. in. (6 mm) Adder Length in. (13 mm) Min. No-Heat in. (6 mm) No-HeatStraight Stainless Steel HoseStraight stainless steel hose provides the best protectionagainst abrasion from sharp edges. It also offers ease ofhandling and wiring in abrasive environments.Unless specified, 12 in. (305 mm) hose is supplied.Leads are 2 in. (51 mm) longer than hose. Option adds 14 in. (6 mm) to overall length of heater.Note: This option is available with Teflonleads and seal.Minimum no-heats are longer, contact your Watlow representative details. in. ( 6 mm)Adder Length in. ( 13 mm)Min. No-Heat in. (6 mm)No-HeatStraight Stainless Steel BraidStraight stainless braid is designed to protect leads fromabrasion against sharp edges. It is the most flexible ofWatlows protective lead arrangements.Unless specified, 12 in. (305 mm) braid is supplied. Leads are 2 in. (51 mm) longer than braid.Option adds 14 in. (6 mm) to overall length of heater.Note: This option is available with Teflonleads and seal.Minimum no-heats are longer, contact your Watlow representative for details.29 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersMade-to-OrderRight Angle OptionsAdder LengthMin. No-Heat in. (6 mm) No-HeatRight Angle LeadsRight angle leads are used in applications with a highdegree of flexing and when space limitations are critical.Standard lead wires are connected internally (swaged-in)and exit at a 90 angle at the end of the heater.Note: This option is available with Teflonleads and seal.Minimum no-heats are longer, contact your Watlow representative for details.Diameter1438125834Adder length (in.)1414516716716Min. No-Heat (in.)1212916111678 in. (6 mm) No-HeatMin. No-HeatAdder LengthRight Angle Stainless Steel HoseRight angle stainless steel hose is provided for wiring convenience. Like straight stainless steel hose, it protectsleads from abrasion against sharp edges.Unless specified, 12 in. (305 mm) hose is supplied. Leads are 2 in. (51 mm) longer than hose.Note: This option is available with Teflonleads and seal.Minimum no-heats are longer, contact your Watlow representative for details.Diameter1438125834Adder length (in.)5163891611161316Min. No-Heat (in.)9165813161516 1116 in. (6 mm) No-HeatAdder LengthMin. No-HeatRight Angle Stainless Steel BraidRight angle stainless steel braid is provided for wiring convenience. Like straight braid, it protects leads fromabrasion against sharp edges.Unless specified, 12 in. (305 mm) hose is supplied. Leads are 2 in. (51 mm) longer than hose.Diameter1438125834Adder length (in.)5163891611161316Min. No-Heat (in.)9165813161516 1116Note: This option is available with Teflonleads and seal.Minimum no-heats are longer, contact your Watlow representative for details.30 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersMade-to-OrderTermination OptionsMade-to-order silicone rubber seal and leads protect theheater against moisture/contamination from lubricating oil,cleaning solvents, plastic material or fumes and organictapes. This seal is effective to 450F (230C) under continuous operation.Silicone rubber seal and leads for made-to-order unitsgreater than 10 in. (250 mm) long will have a minimumno-heat section of approximately 12 percent of the overall length. Longer no-heat sections are available if required.Min. No-Heat 1 in.(25 mm)Min. No-Heat1 in. (25 mm)Epoxy seals help protect the heater against moisture/contamination from lubricating oil, cleaning solvents, plastic material or fumes and organic tapes.These seals are effective to 500F (260C) under continuous operation.Epoxy seals can be ordered only on units greater than 18 in. (3.2 mm) diameter with crimped on leads. Minimumno-heat section at the lead end is 1 in. (25 mm). Longerno-heat sections are available upon request.To order, specify epoxy seal.SJO cord is used in low temperature applications wherelead wires require protection against moisture or whenULlisted plugs are needed. This cord is limited to 140F (60C) under continuous operation.FIRERODs greater than 10 in. (250 mm) long will have a minimum no-heat section of approximately 12 percent + 14 in. (6 mm) of the overall length.To order, specify either two conductor or three conductor as well as overall length.Min. No-Heat11/4 in.(32 mm)PassivationDuring the manufacturing and handling of stainless steel,particles of iron or tool steel may be embedded in thesheath. If not removed, these particles may corrode andproduce rust spots. In critical sheath contact applications,like the medical industry, passivation will remove free ironfrom the sheath. To order, specify 316L stainless steelsheath and passivation.Ground leads are a safety feature to protect both workersand equipment. This configuration is not available on alloptions. contact your Watlow representative for additionalinformation. To order, specify ground lead.ULlisted plugs are a safe, convenient method of installation, especially when frequent connection or disconnection is required. These plugs have a nylon dead front, a molded-in cord grip and either straight orTwist-Lockblades with or without ground. Use ULlisted plugs with stainless steel hose, conduit,braid or lead wires with sleeving. To order, specify ULlisted plugs.Silicone Rubber Seal and LeadsEpoxy SealSJO CordULListed PlugsGround Lead31 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersMade-to-OrderTermination Options (Continued)A 4 in. (100 mm) NEMA 1 octagonal terminal box ismounted on a flange or a threaded fitting. Boxes have 12 in. (13 mm) conduit knockouts for electrical connection.Hazardous location (NEMA 4 and NEMA 7) terminalboxes are also available. contact your Watlow representative for details. Terminal boxes are available on 12 in. (13 mm) through 1 in. (25 mm) diameterFIRERODs. To order, specify terminal box and NEMA type. in.(13 mm) in.(15.9 mm) in.(19 mm)Post terminals provide a quick, secure connection with ring or fork connectors, or bus bars. Threaded 6-32 studs are soldered to the solid power pins. Nuts and washers are provided.Post terminals are available on FIRERODs of 12, 58, 34and 1 in. (13, 15.9, 19 and 25 mm) diameter. On 1 in. (25 mm) diameters, pins are straight. To order, specifypost terminals.Ceramic bead insulation protects the leads from highambient temperatures above 840F (450C). The beads fit over solid conductors that are extendedlong enough to reach a cooler area where flexible wirescan be attached. This option is not available on 18 in. (3.2 mm) diameter. The maximum available length on stock FIRERODs is 112 in. (38 mm). To order, specify ceramic beads andlength, and additional lead length. Terminal BoxPost TerminalsCeramic Bead InsulationThis construction technique minimizes current leakage of the heating element. It is especially useful in criticalapplications, like the medical field where low set pointground fault interrupts are used.Low electrical leakage is available on 38, 12, 58 and 34 in. (9.5, 13, 15.9 and 19 mm) diameter FIRERODs. To order,specify low electrical leakage.Low Electrical LeakageFIREROD ActualDiameter Precision Diameterin. in.14 0.241 0.000538 0.363 0.000512 0.488 0.000558 0.613 0.000534 0.738 0.00051 0.984 0.0005Centerless GrindingCenterless grinding can be used to furnish precisiondiameters, thus permitting closer heater-to-part fit.Therefore, higher watt densities can be used. For centerless ground heaters, the heater must eitherhave Teflonleads and seal (maximum 12 in. (305 mm)lead length) or have crimped on leads. Longer leadlengths are available, but require external connection. The length of a FIREROD available for centerless grindingis dependent on the construction, please contact yourWatlow representative for assistance. To order, specifycenterless grinding. The no-heatsection is thesame as unitswith threadedfittings.4 in.(100 mm)*11/2 in.(38 mm)

32 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersMade-to-OrderOptionsJ Iron Constantan(Magnetic) (Non-Magnetic) 0 to 1400 (-20 to 760)(White) (Red)K ChromelAlumel(Non-Magnetic) (Magnetic) 0 to 2300 (-20 to 1260)(Yellow) (Red)Thermocouple TypesASTM Conductor Characteristics Temperature Range CodePositive NegativeF (C)For other ISA types, contact your Watlow representative.Style AStyle BStyle C1/2 in.(13 mm)No-HeatA Style A internal thermocouple can be used to evaluateheat transfer efficiency of an application, a measure thatenables you to cut energy costs and increase heater life.This ungrounded junction is located in the heater core tomonitor the internal temperature of the heater.The Style B internal thermocouple gives a good approximation of part temperature and can be locatedanywhere along the length of the heater. Due to variationsin production, this style may be grounded or ungrounded.This junction is located adjacent to the inside heatersheath in the center of the heated section unless otherwise specified. A 12 in. (13 mm) unheated section is required.A Style C internal thermocouple is useful in applicationswhere material flows past the end of the heater, as in plastic molding. This grounded junction is embedded ina special end disc. Unless requested, the disc end is not mechanically sealed.To order, specify internal thermocouple, Style A, Bor C and thermocouple ASTM Type J or K. If not specified, 12 in. (305 mm) power and thermocoupleleads are supplied.AvailabilityAll styles are available on all diameters with the exceptionof 18 in. (3.2 mm) diameter, which is available only with Style C and 1 in. (25 mm) which is available only withStyle A and B.Internal Thermocouple33 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersMade-to-OrderOptions (Continued)Distributed wattage varies the watt density along thelength of the heater. This construction technique is usedto compensate for heat losses along the edges of heatedparts. This is ideal for seal bar applications.To order, specify distributed wattage and give thelength and wattage for each section.1/4 in. (6 mm)No-HeatDia.HeatedLength1/4 in. (6 mm)No-HeatDual VoltageWhen the FIREROD requires the flexibility of operating ontwo voltages, use this internal construction. Dual voltageis not compatible for all lead options. Contact yourWatlow representative for availability. To order, specifydual voltage and voltage requirements.Individually Controlled Heat ZonesIndividually controlled heat zones give the flexibility of controlling temperature by zones, along the length of theFIREROD. This is an advantage for heating requirementsof certain applications, like seal bars. This internal construction can be ordered on 58, 34 and 1 in. (16, 19 and 25 mm) diameter FIRERODs. To order, specify individually controlled heat zones as well as wattageand length per zone.1/4 in. (6 mm)HeatedBend Radius1in.(25 mm)1/4 in. (6 mm)14 214 (56)12 (13)38 238 (60)12 (13)12 278 (72)34 (19)58 3516 (83) 1 (25)34 31316 (98) 114 (32)FIREROD Min. Required BendDiameter No-Heat Length Radiusin. in. (mm) in. (mm)Bent FIRERODIn applications where the leads must exit at an angle, abend can be made in the unheated section only. Heated sections may be on either side of the bend. It is recommended that the heater be bent at the Watlow factory.A 304 stainless steel sheath is used on bent FIRERODs. If the sheath temperature exceeds 1000F (540C), contact your Watlow representative.See dimensions noted on the chart, or contact yourWatlow representative, if you need to exceed limitations shown.Distributed Wattage34 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersMade-to-OrderMounting OptionsThreaded fittings allow for fast, water-tight installation ofthe heater into a threaded hole. Standard fittings are 304 stainless steel and welded to the heater sheath.Other materials are available upon request. Doublethreaded fittings are also available.Unless specified, the fitting hex will be located flush withthe lead end. Stainless steel flanges are a convenient mounting methodas well as a way to position a heater within an application.Standard location is 14 in. (6 mm) from lead end; however,a specific location may be requested any place on the no-heat section. Unless specified, flanges will be stakedto the sheath.To order, specify flange, size and location.Threaded FittingsHeaterDiameterin.Pipe ThreadSize (NPTF)in. (mm)Single ThreadFitting Lengthin. (mm)Double ThreadFitting Lengthin. (mm)1418 (3.2)12 (13.0)78 (22.2)3814 (6.0)58 (15.9) 1516 (49.2)1238 (9.5)34 (19.0) 138 (34.9)5812 (13.0)78 (22.2) 11316 (46.0)3434 (19.0) 1 (25.0) 11316 (46.0)1 1 (25.0) 1 (25.0) 112 (38.0) in. (1.6 mm) in. (6 mm)Standard LocationOptional LocationHDC0.140" (3.6 mm)0.140 in. (3.6 mm)Optional LocationFlush With Lead EndStandard LocationLead End Flush WithHex Standard Location0.250 in. Min. No-HeatOptional FittingLocationOptional FittingLocationThreaded Fittings SpecificationsFlangesFlange SpecificationsFIRERODDiameterin.FlangeSizeDin. (mm)Cin. (mm)Hin. (mm)14, 38, 12 FS 1 (25.0)34 (19.0) 0.14414, 38, 12, 58, 34 FM 112 (38.0) 118 (28.6) 0.15658, 34, 1 FL 2 (51.0) 112 (38.0) 0.201Locating RingsA stainless steel locating ring can be used as a retainingcollar to position a FIREROD if mounting requirements arenot critical. Standard locating rings are staked to theheather sheath.To order, specify locating ring, and location.Locating Ring SpecificationsRing O.D.in. (mm)12 (13.0)58 (15.9)34 (19.0)78 (22.2) 1 (25.0)Diameter - in.143812583435 WATLOWCartridge/Insertion HeatersFIREROD Cartridge Heaters18 114 (32.0) 120 25 87 (13) 0.02 (0.009) Stock C1E14114 (32.0) 120 50 174 (18) 0.02 (0.009) Stock C1E13114 (32.0) 240 35 113 (27) 0.02 (0.009) Stock C1E42112 (38.0) 120 30 78 (12) 0.02 (0.009) Stock C1J5112 (38.0) 120 60 156 (24) 0.02 (0.009) Stock C1J62 (51.0) 120 50 87 (13) 0.02 (0.009) Stock C2A42 (51.0) 120 100 174 (27) 0.02 (0.009) Stock C2A514 1 (25.0) 120 80 208 (32) 0.02 (0.009) Stock E1A511 (25.0) 120 100 260 (40) 0.02 (0.009) Stock E1A521 (25.0) 120 150 390 (60) 0.02 (0.009) Stock E1A531 (25.0) 240 100 250 (39) 0.02 (0.009) Stock E1A66114 (32.0) 120 75 130 (20) 0.02 (0.009) Stock E1E41114 (32.0) 120 100 173 (27) 0.02 (0.009) Stock E1E42114 (32.0) 120 150 260 (40) 0.02 (0.009) Stock E1E43114 (32.0) 240 225 390 (60) 0.02 (0.009) Stock E1E61112 (38.0) 120 50 65 (10) 0.02 (0.009) Stock E1J39112 (38.0) 120 100 130 (20) 0.02 (0.009) Stock E1J40112 (38.0) 120 150 195 (30) 0.02 (0.009) Stock E1J41112 (38.0) 240 175 228 (35) 0.02 (0.009) Stock E1J49112 (38.0) 120 200 260 (40) 0.02 (0.009) Stock E1J4211 2 (38.0) 240 200 260 (40) 0.02 (0.009) Stock E1J52112 (38.0) 240 250 325 (50) 0.02 (0.009) Stock E1J352 (51.0) 120 80 68 (11) 0.03 (0.014) Stock E2A1362 (51.0) 120 100 87 (13) 0.03 (0.014) Stock E2A552 (51.0) 240 125 108 (17) 0.03 (0.014) Stock E2A822 (51.0) 120 150 130 (20) 0.03 (0.014) Stock E2A562 (51.0) 240 150 130 (20) 0.03 (0.014) Stock E2A772 (51.0) 120 200 173 (27) 0.03 (0.014) Stock E2A572 (51.0) 240 200 173 (27) 0.03 (0.014) Stock E2A502 (51.0) 120 250 217 (33) 0.03 (0.014) Stock E2A722 (51.0) 240 250 215 (33) 0.03 (0.014) Stock E2A762 (51.0) 240 300 260 (40) 0.03 (0.014) Stock E2A83212 (64.0) 120 250 159 (25) 0.03 (0.014) Stock E2J80212 (64.0) 240 250 159 (25) 0.03 (0.014) Stock E2J493 (76.0) 120 100 52 (8) 0.04 (0.018) Stock E3A483 (76.0) 120 200 104 (16) 0.04 (0.018) Stock E3A493 (76.0) 240 200 104 (16) 0.04 (0.018) Stock E3A603 (76.0) 240 250 128 (20) 0.04 (0.018) Stock E3A1243 (76.0) 120 300 156 (24) 0.04 (0.018) Stock E3A503 (76.0) 240 300 156 (24) 0.04 (0.018) Stock E3A514 (102.0) 120 100 37 (6) 0.04 (0.018) Stock E4A284 (102.0) 120 200 74 (11) 0.04 (0.018) Stock E4A294 (102.0) 240 200 74 (11) 0.04 (0.018) Stock E4A324 (102.0) 120 300 111 (17) 0.04 (0.018) Stock E4A304 (102.0) 240 300 111 (17) 0.04 (0.018) Stock E4A6412 (114.0) 120 200 64 (10) 0.05 (0.023) Stock E4J305 (127.0) 240 350 101 (16) 0.05 (0.023) Stock E5A455 (127.0) 120 400 113 (18) 0.05 (0.023) Stock E5A575 (127.0) 240 400 113 (18) 0.05 (0.023) Stock E5A346 (152.0) 240 400 94 (14) 0.06 (0.027) Stock E6A468 (203.0) 240 800 136 (21) 0.08 (0.036) Stock E8A76Diameter Sheath Length Watt Density Approx. Net Wt. Codein. in. (mm) Volts Watts W/in2 (W/cm2) lbs (kg) Availability NumberCONTINUEDStock Heater Code Numbers12 inch crimped on GGS leads supplied unless otherwise specified.36 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersDiameter Sheath Length Watt Density Approx. Net Wt. Codein. in. (mm) Volts Watts W/in2 (W/cm2) lbs (kg) Availability Number38 1 (25.0) 120 55 95 (15) 0.03 (0.014) Stock G1A711 (25.0) 120 100 172 (26) 0.03 (0.014) Stock G1A29 1 (25.0) 120 150 259 (40) 0.03 (0.014) Stock G1A38 1 (25.0) 240 200 344 (53) 0.03 (0.014) Stock G1A83114 (32.0) 120 100 115 (18) 0.03 (0.014) Stock G1E91114 (32.0) 120 125 144 (22) 0.03 (0.014) Stock G1E74 114 (32.0) 120 150 172 (27) 0.03 (0.014) Stock G1E92 114 (32.0) 240 150 172 (27) 0.03 (0.014) Stock G1E93114 (32.0) 120 200 230 (35) 0.03 (0.014) Stock G1E94114 (32.0) 240 200 230 (36) 0.03 (0.014) Stock G1E95114 (32.0) 120 400 426 (66) 0.03 (0.014) Stock G1E991516 (33.3) 120 100 104 (16) 0.03 (0.014) Stock G1F131516 (33.3) 240 100 104 (16) 0.03 (0.014) Stock G1F151516 (33.3) 120 150 160 (25) 0.03 (0.014) Stock G1F17138 (34.9) 240 160 151 (23) 0.03 (0.014) Stock G1G231716 (36.5) 120 100 94 (15) 0.03 (0.014) Stock G1H6112 (38.0) 120 50 43 (7) 0.04 (0.018) Stock G1J25112 (38.0) 120 75 65 (10) 0.04 (0.018) Stock G1J70112 (38.0) 120 80 68 (11) 0.04 (0.018) Stock G1J66112 (38.0) 120 100 86 (13) 0.04 (0.018) Stock G1J59112 (38.0) 240 100 86 (13) 0.04 (0.018) Stock G1J110112 (38.0) 240 125 106 (16) 0.04 (0.018) Stock G1J182112 (38.0) 120 150 129 (20) 0.04 (0.018) Stock G1J31112 (38.0) 240 150 129 (20) 0.04 (0.018) Stock G1J39 112 (38.0) 120 200 173 (27) 0.04 (0.018) Stock G1J85112 (38.0) 240 200 173 (27) 0.04 (0.018) Stock G1J73112 (38.0) 120 250 216 (33) 0.04 (0.018) Stock G1J86112 (38.0) 240 250 216 (33) 0.04 (0.018) Stock G1J54134 (45.0) 120 125 86 (13) 0.05 (0.023) Stock G1N45134 (45.0) 120 175 122 (19) 0.05 (0.023) Stock G1N46134 (45.0) 120 250 172 (27) 0.05 (0.023) Stock G1N43134 (45.0) 240 250 172 (27) 0.05 (0.023) Stock G1N3211316 (46.0) 240 150 98 (15) 0.05 (0.023) Stock G1P1411316 (46.0) 120 200 129 (20) 0.05 (0.023) Stock G1P1511316 (46.0) 240 250 161 (25) 0.05 (0.023) Stock G1P11178 (47.6) 120 250 152 (24) 0.05 (0.023) Stock G1R142 (51.0) 120 50 29 (5) 0.06 (0.027) Stock G2A532 (51.0) 120 75 42 (7) 0.06 (0.027) Stock G2A1922 (51.0) 120 100 57 (9) 0.06 (0.027) Stock G2A842 (51.0) 240 100 57 (9) 0.06 (0.027) Stock G2A762 (51.0) 120 150 86 (13) 0.06 (0.027) Stock G2A56 2 (51.0) 240 150 86 (13) 0.06 (0.027) Stock G2A81 2 (51.0) 120 200 115 (18) 0.06 (0.027) Stock G2A127 2 (51.0) 240 200 115 (18) 0.06 (0.027) Stock G2A37 2 (51.0) 120 250 144 (22) 0.06 (0.027) Stock G2A472 (51.0) 240 250 144 (22) 0.06 (0.027) Stock G2A732 (51.0) 120 300 172 (27) 0.06 (0.027) Stock G2A1392 (51.0) 240 300 172 (27) 0.06 (0.027) Stock G2A98 2 (51.0) 120 400 230 (36) 0.06 (0.027) Stock G2A1532 (51.0) 240 400 230 (36) 0.06 (0.027) Stock G2A1462 (51.0) 120 500 282 (44) 0.06 (0.027) Stock G2A95CONTINUEDStock Heater Code Numbers (Continued)12 inch crimped on GGS leads supplied unless otherwise specified.37 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersDiameter Sheath Length Watt Density Approx. Net Wt. Codein. in. (mm) Volts Watts W/in2 (W/cm2) lbs (kg) Availability Number38 2 (51.0) 240 500 282 (44) 0.06 (0.027) Stock G2A97218 (54.0) 240 200 106 (16) 0.06 (0.027) Stock G2C13214 (57.0) 120 75 37 (6) 0.07 (0.032) Stock G2E88214 (57.0) 120 125 62 (10) 0.07 (0.032) Stock G2E89214 (57.0) 240 125 62 (10) 0.07 (0.032) Stock G2E138214 (57.0) 240 150 73 (11) 0.07 (0.032) Stock G2E68214 (57.0) 120 175 86 (13) 0.07 (0.032) Stock G2E90214 (57.0) 120 250 123 (19) 0.07 (0.032) Stock G2E2214 (57.0) 240 250 123 (19) 0.07 (0.032) Stock G2E78214 (57.0) 120 300 148 (23) 0.07 (0.032) Stock G2E108214 (57.0) 240 300 148 (23) 0.07 (0.032) Stock G2E12214 (57.0) 120 350 173 (27) 0.07 (0.032) Stock G2E91214 (57.0) 240 350 173 (27) 0.07 (0.032) Stock G2E75212 (64.0) 120 200 87 (13) 0.07 (0.032) Stock G2J110212 (64.0) 240 200 87 (13) 0.07 (0.032) Stock G2J81212 (64.0) 120 250 108 (17) 0.07 (0.032) Stock G2J46212 (64.0) 240 250 108 (17) 0.07 (0.032) Stock G2J80212 (64.0) 120 300 130 (20) 0.07 (0.032) Stock G2J118212 (64.0) 240 300 130 (20) 0.07 (0.032) Stock G2J119212 (64.0) 120 400 174 (27) 0.07 (0.032) Stock G2J26212 (64.0) 240 400 174 (27) 0.07 (0.032) Stock G2J146212 (64.0) 120 500 216 (33) 0.07 (0.032) Stock G2J109212 (64.0) 240 500 216 (33) 0.07 (0.032) Stock G2J5221316 (71.4) 120 60 22 (3) 0.08 (0.036) Stock G2P921316 (71.4) 120 250 92 (14) 0.08 (0.036) Stock G2P321316 (71.4) 240 300 110 (17) 0.08 (0.036) Stock G2P53 (76.0) 120 100 34 (5) 0.08 (0.036) Stock G3A553 (76.0) 240 100 34 (5) 0.08 (0.036) Stock G3A1373 (76.0) 120 150 52 (8) 0.08 (0.036) Stock G3A1213 (76.0) 120 200 69 (11) 0.08 (0.036) Stock G3A613 (76.0) 240 200 69 (11) 0.08 (0.036) Stock G3A39 3 (76.0) 120 250 86 (13) 0.08 (0.036) Stock G3A523 (76.0) 240 250 86 (13) 0.08 (0.036) Stock G3A543 (76.0) 120 300 104 (16) 0.08 (0.036) Stock G3A73 3 (76.0) 240 300 104 (16) 0.08 (0.036) Stock G3A923 (76.0) 120 400 138 (21) 0.08 (0.036) Stock G3A443 (76.0) 240 400 138 (21) 0.08 (0.036) Stock G3A653 (76.0) 120 500 173 (27) 0.08 (0.036) Stock G3A119 3 (76.0) 240 500 173 (27) 0.08 (0.036) Stock G3A1203 (76.0) 240 600 208 (32) 0.08 (0.036) Stock G3A1333516 (84.2) 120 500 152 (24) 0.08 (0.036) Stock G3F24312 (89.0) 120 250 72 (11) 0.09 (0.041) Stock G3J77312 (89.0) 240 250 72 (11) 0.09 (0.041) Stock G3J65312 (89.0) 120 300 87 (13) 0.09 (0.041) Stock G3J87312 (89.0) 240 300 87 (13) 0.09 (0.041) Stock G3J68312 (89.0) 120 500 144 (22) 0.09 (0.041) Stock G3J22312 (89.0) 240 500 144 (22) 0.09 (0.041) Stock G3J6331316 (96.8) 120 150 38 (6) 0.09 (0.041) Stock G3P831316 (96.8) 240 500 128 (20) 0.09 (0.041) Stock G3P3CONTINUEDStock Heater Code Numbers (Continued)12 inch crimped on GGS leads supplied unless otherwise specified.38 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersDiameter Sheath Length Watt Density Approx. Net Wt. Codein. in. (mm) Volts Watts W/in2 (W/cm2) lbs (kg) Availability Number38 4 (102.0) 120 125 31 (5) 0.09 (0.041) Stock G4A544 (102.0) 240 125 31 (5) 0.09 (0.041) Stock G4A1634 (102.0) 120 150 37 (6) 0.09 (0.041) Stock G4A784 (102.0) 120 175 43 (7) 0.09 (0.041) Stock G4A1914 (102.0) 120 250 62 (10) 0.09 (0.041) Stock G4A404 (102.0) 240 250 62 (10) 0.09 (0.041) Stock G4A874 (102.0) 120 300 74 (11) 0.09 (0.041) Stock G4A944 (102.0) 240 300 74 (11) 0.09 (0.041) Stock G4A954 (102.0) 120 400 99 (15) 0.09 (0.041) Stock G4A484 (102.0) 240 400 99 (15) 0.09 (0.041) Stock G4A444 (102.0) 240 450 109 (17) 0.09 (0.041) Stock G4A644 (102.0) 120 500 123 (19) 0.09 (0.041) Stock G4A964 (102.0) 240 500 123 (19) 0.09 (0.041) Stock G4A92 4 (102.0) 120 550 134 (21) 0.09 (0.041) Stock G4A200414 (108.0) 240 300 67 (10) 0.09 (0.041) Stock G4E25414 (108.0) 240 750 167 (26) 0.09 (0.041) Stock G4E15412 (114.0) 120 300 65 (10) 0.10 (0.045) Stock G4J54412 (114.0) 240 300 65 (10) 0.10 (0.045) Stock G4J33412 (114.0) 120 500 108 (17) 0.10 (0.045) Stock G4J55412 (114.0) 240 500 108 (17) 0.10 (0.045) Stock G4J3741316 (122.2) 240 300 59 (9) 0.11 (0.050) Stock G4P1141316 (122.2) 240 500 98 (15) 0.11 (0.050) Stock G4P35 (127.0) 120 150 29 (4) 0.11 (0.050) Stock G5A685 (127.0) 240 150 29 (4) 0.11 (0.050) Stock G5A565 (127.0) 120 300 58 (9) 0.11 (0.050) Stock G5A695 (127.0) 240 300 58 (9) 0.11 (0.050) Stock G5A70 5 (127.0) 120 500 96 (15) 0.11 (0.050) Stock G5A385 (127.0) 240 500 96 (15) 0.11 (0.050) Stock G5A71 5 (127.0) 240 750 144 (22) 0.11 (0.050) Stock G5A675 (127.0) 240 1000 192 (30) 0.11 (0.050) Stock G5A115514 (133.0) 240 200 45 (7) 0.12 (0.054) Stock G5E16512 (140.0) 240 600 104 (16) 0.12 (0.054) Stock G5J36512 (140.0) 240 1000 173 (27) 0.12 (0.054) Stock G5J456 (152.0) 120 200 31 (5) 0.13 (0.059) Stock G6A806 (152.0) 120 250 39 (6) 0.13 (0.059) Stock G6A40 6 (152.0) 240 250 39 (6) 0.13 (0.059) Stock G6A926 (152.0) 120 400 63 (10) 0.13 (0.059) Stock G6A816 (152.0) 240 400 63 (10) 0.13 (0.059) Stock G6A826 (152.0) 120 500 79 (12) 0.13 (0.059) Stock G6A1256 (152.0) 240 500 79 (12) 0.13 (0.059) Stock G6A596 (152.0) 120 600 94 (15) 0.13 (0.059) Stock G6A566 (152.0) 240 600 94 (15) 0.13 (0.059) Stock G6A516 (152.0) 240 750 117 (18) 0.13 (0.059) Stock G6A466 (152.0) 240 1000 157 (24) 0.13 (0.059) Stock G6A83612 (165.0) 240 600 86 (13) 0.14 (0.064) Stock G6J23612 (165.0) 240 1000 144 (22) 0.14 (0.064) Stock G6J337 (178.0) 120 250 33 (5) 0.14 (0.064) Stock G7A407 (178.0) 240 250 33 (5) 0.14 (0.064) Stock G7A327 (178.0) 240 500 65 (10) 0.14 (0.064) Stock G7A307 (178.0) 120 600 80 (12) 0.14 (0.064) Stock G7A41CONTINUEDStock Heater Code Numbers (Continued)12 inch crimped on GGS leads supplied unless otherwise specified.39 WATLOWCartridge/Insertion HeatersFIREROD Cartridge HeatersDiameter Sheath Length Watt Density Approx. Net Wt. Codein. in. (mm) Volts Watts W/in2 (W/cm2) lbs (kg) Availability Number38 7 (178.0) 240 600 80 (12) 0.14 (0.064) Stock G7A42 7 (178.0) 240 1000 133 (21) 0.14 (0.064) Stock G7A43 712 (191.0) 240 600 74 (11) 0.15 (0.068) Stock G7J27 712 (191.0) 240 1000 124 (19) 0.15 (0.068) Stock G7J2871316 (198.5) 240 750 87 (13) 0.15 (0.068) Stock G7P58 (203.0) 120 300 34 (5) 0.16 (0.073) Stock G8A548 (203.0) 240 300 34 (5) 0.16 (0.073) Stock G8A478 (203.0) 120 400 45 (7) 0.16 (0.073) Stock G8A1098 (203.0) 120 500 58 (9) 0.16 (0.073) Stock G8A818 (203.0) 240 500 58 (9) 0.16 (0.073) Stock G8A328 (203.0) 120 600 69 (11) 0.16 (0.073) Stock G8A538 (203.0) 240 600 69 (11) 0.16 (0.073) Stock G8A378 (203.0) 240 700 79 (12) 0.16 (0.073) Stock G8A988 (203.0) 240 1000 115 (18) 0.16 (0.073) Stock G8A45 858 (219.0) 240 500 52 (8) 0.17 (0.077) Stock G8L39 (229.0) 240 1000 1