MODbreak Moulded Case Circuit Breakers Technical · PDF fileM 1 NHP Electrical Engineering...
Transcript of MODbreak Moulded Case Circuit Breakers Technical · PDF fileM 1 NHP Electrical Engineering...
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MODbreak Moulded Case Circuit Breakers Technical Catalogue An economical and flexible line of MCCBs for general purpose applications
Moulded Case Circuit Breakers, Chassis, Transfer Switches
POWER DISTRIBUTION AND PROTECTION
NHP Electrical Engineering Products Pty Ltd Sales 1300 NHP NHP nhp.com.au
5th September 2014 Sales 0800 NHP NHP nhp-nz.com
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MODBreak MCCBs
CONTENTS
MODbreak MCCBs Page Number
Product overview 3 3 pole MCCBs 5 4 pole MCCBs 6 Internal accessories 7 External accessories 8 - 13 MB Chassis 14 - 15 MBC Chassis 16 - 20 Transfer switches 21 Transfer switch controllers 22 - 30 MCCB ratings chart 31 Selectivity and Cascade tables 32 - 35 MODcurve Selectivity Software 36 Motor start tables 37 - 38 Watts loss 39 Let through and cut off values 39 Temperature ratings 39 Characteristic curves – thermal magnetic MCCBs 40 Characteristic curves – electronic MCCBs 41 Electronic MCCB OCR setting 42 - 45 Dimensions MCCBs and accessories 46 - 54
Transfer Switches 55 - 58 MODbreak OCR Tester 59 - 60 MCCB installation details 61 - 67
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MODbreak Moulded Case Circuit Breakers
MODbreak range overview
From 16 A to 1250 A
3 Pole & 4 Pole
Choice of 36kA and 50kA breaking capacities.
Icu = Ics
With Electronic and Thermal Magnetic protection relays
MCCBs for motor backup protection
MCCBs for distribution systems
Manual, rotary handle or motorised versions
Wide range of internal and external accessories
Chassis options
Transfer switch and controllers MB2 MB3 MB4 MODbreak frame sizes and ampere ratings
MB2
Rated current 63 (50A to 63A), 80, 100, 125, 160, 200, 250 A 40 (16A to 40A), 63, 100, 160, 250 A
Over Current Relay Thermal magnetic Electronic
MB3
Rated current 320, 400, 500, 630 A 400, 630 A
Over Current Relay Thermal magnetic Electronic
MB4
Rated current 800, 1000, 1250 A
Over Current Relay Electronic
Thermal Magnetic Over Current Relay Features of Thermal Magnetic OCR MTX1 Electronic Over Current Relay Features of MTX1 Electronic OCR
Adjustable overload setting 80% to 100% of ln
Adjustable magnetic short circuit setting 6 – 10 ln
Push to trip button
True RMS sensing
Infinite adjustment thermal and magnetic dials
Refer ratings chart for additional setting details
Overload protection LT with selectable inverse time delay
Adjustable Short Time ST characteristic
Short circuit (ST) characteristic with selectable time delay
LT and ST characteristic can be switched OFF
Fixed instantaneous trip
DIP switch OCR setting
Push to trip button
Thermal memory enable / disable
Power ON / pick-up LED
LED blinks at 85% and rapidly at 120% Ir prior to tripping
True RMS sensing
Refer ratings chart for additional setting details
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MODbreak Moulded Case Circuit Breakers
Faster tripping The unique speed contact system accelerates the opening of contacts during short circuit. This ensures faster tripping an ultimate current limiting feature. The result-very low let-through, cut-off current and fault clearing time Mechanical Anti-reclosing This unique feature ensures that under short circuit conditions, the contacts open and latch even before the release gives a trip command to the mechanism. This avoids contact re-closing and bounce Low Watts loss The entire current carrying path is optimally designed to achieve very low watt loss. Silver contacts offer low contact resistance, which help to achieve a low heat connection. Forward or Reverse connection MODbreak MCCBs can be forward or reverse connected to allow reversal of line and load connections. This is especially important for MB and MBC chassis where MODbreak MCCBs are reverse connected on the chassis as standard. Mounting angle
Vertical and 90⁰ to the left or right
Positive Isolation The MCCB toggle indicates the true position of the main switching contacts Double Insulation Internal accessories are housed in insulated casings to ensure a first level of insulation. When the front cover is opened for the fixing of internal accessories, the MCCB is totally insulated ensuring double insulation. Standards Compliance MODbreak complies with AS 60947-2, AS/NZS 3947-6, IEC
60947, and the European CE Mark.
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MODbreak Moulded Case Circuit Breakers Features
Electronic and thermal magnetic types 3 pole types 36kA and 50kA interrupting capacities Fault interruption ratings Icu = Ics Internal and external accessory range Cascading, Selectivity, motor starting and other data available NHP MODcurve selectivity and Cadblocks available Chassis options for 3 pole MCCB’s up to 630A frame Transfer switches available to 630A frame
3 pole MCCB’s
Ampere Trip unit 415V kA MCCB type Current Catalogue 3 pole Frame Rating (A) ICU ICS Adjustment Number Price $
63 MB263D3TM 0.00 100 MB2100D3TM 0.00
250AF 125 36 36 Thermal Magnetic 80-100% MB2125D3TM 0.00 160 MB2160D3TM 0.00 250 MB2250D3TM 0.00
63 80
MB263N3TM MB280N3TM
0.00
100 MB2100N3TM 0.00 250AF 125 50 50 Thermal Magnetic 80-100% MB2125N3TM 0.00 160 MB2160N3TM 0.00 250 MB2250N3TM 0.00
40 MB240D3SE 0.00 250AF 100 36 36 Electronic 40-100% MB2100D3SE 0.00 250 MB2250D3SE 0.00
40 MB240N3SE 0.00 250AF 100 50 50 Electronic 40-100% MB2100N3SE 0.00 250 MB2250N3SE 0.00
320 MB3320D3TM 0.00 630 AF 400 36 36 Thermal Magnetic 80-100% MB3400D3TM 0.00
630 MB3630D3TM 0.00
320 MB3320N3TM 0.00 630 AF 400 50 50 Thermal Magnetic 80-100% MB3400N3TM 0.00
630 MB3630N3TM 0.00
630AF 400 36 36 Electronic 40-100%
MB3400D3SE 0.00 630 MB3630D3SE 0.00
630AF 400 50 50 Electronic 40-100%
MB3400N3SE 0.00 630 MB3630N3SE 0.00
800 MB4800N3SE 0.00 800 / 1250AF 1000 50 50 Electronic 40-100% MB41000N3SE 0.00 1250 MB41250N3SE 0.00
Ordering notes: 1. Refer following pages for internal and external accessories, chassis and transfer switch options. 2. Refer following pages for Selectivity and Cascade tables.
Quick reference
guide
MB2 250 MCCB
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MODbreak Moulded Case Circuit Breakers Features
Electronic and thermal magnetic types 4 pole types 36kA and 50kA interrupting capacities Fault interruption ratings Icu = Ics Internal and external accessory range Cascading, Selectivity, motor starting and other data available NHP MODcurve selectivity and Cadblocks available Transfer switches available to 630A frame
4 pole MCCB’s
Ampere Trip unit 415V kA MCCB type Current Catalogue 4 pole Frame Rating (A) ICU ICS Adjustment Number Price $
63 MB263D4TM 0.00 100 MB2100D4TM 0.00
250AF 125 36 36 Thermal Magnetic 80-100% MB2125D4TM 0.00 160 MB2160D4TM 0.00 250 MB2250D4TM 0.00
63 MB263N4TM 0.00 100 MB2100N4TM 0.00 250AF 125 50 50 Thermal Magnetic 80-100% MB2125N4TM 0.00 160 MB2160N4TM 0.00 250 MB2250N4TM 0.00
40 MB240D4SE 0.00 250AF 100 36 36 Electronic 40-100% MB2100D4SE 0.00 250 MB2250D4SE 0.00
40 MB 240N4SE 0.00 250AF 100 50 50 Electronic 40-100% MB2100N4SE 0.00 250 MB2250N4SE 0.00
320 MB3320D4TM 0.00 630 AF 400 36 36 Thermal Magnetic 80-100% MB3400D4TM 0.00
630 MB3630D4TM 0.00
320 MB3320N4TM 0.00 630 AF 400 50 50 Thermal Magnetic 80-100% MB3400N4TM 0.00
630 MB3630N4TM 0.00
630AF 400 36 36 Electronic 40-100%
MB3400D4SE 0.00 630 MB3630D4SE 0.00
630AF 400 50 50 Electronic 40-100%
MB3400N4SE 0.00 630 MB3630N4SE 0.00
800 MB4800N4SE 0.00 800 / 1250AF 1000 50 50 Electronic 40-100% MB41000N4SE 0.00 1250 MB41250N4SE 0.00
Ordering notes:
1. Refer following pages for internal and external accessories and transfer switch options. 2. Refer following pages for Selectivity and Cascade tables.
250A 4 pole MODbreak MCCB
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Accessory Electrical Data
Shunt Trip 110 - 415VAC 15mA at 250V AC Excitation current
UVT 240V AC 1.4 VA Latching current
5A at 250V AC Resistive Auxiliaries/Alarms 3A at 250V AC Inductive
(common ratings) 0.5A at 250V DC Resistive 1A at 250V DC Inductive
MODbreak Moulded Case Circuit Breakers
Internal Accessories – MODbreak MCCBs
Common Internal accessories
Common Internal accessories, except UVTs.
Field fit by the user.
Internal accessories easily clip into an MCCB, and only require a flat or Posidrive screwdriver to first remove the MCCB cover.
No live parts are exposed during accessory fitting.
Internal accessories come with 600mm wire leads as standard. Accessory types
Auxiliary Contacts 1 C/O and 2C/O
Auxiliary Contact 2 C/O
Trip Alarm Contact
Auxiliary & Trip Alarm Contact
Shunt Release
Under Voltage Release Easy fit clip-in accessories
Internal accessory selection catalogue numbers
Accessory type Description Suits Catalogue Number
Shunt Trip 110 – 415V AC, 50/50Hz MB2, 3, 4 MBSHUNTAC110415
Under Voltage Trip 240V AC, 50/60Hz MB2, 3 MB23UVT240VAC 240V AC, 50/60Hz MB4 Refer NHP
Auxiliary & Alarm contacts
1 C/O Auxiliary MB2, 3, 4 MBAUX1C 2 C/O Auxiliary MB2, 3, 4 MBAUX2C
1 C/O Aux – 1C/O Alarm MB2, 3, 4 MBAUX1CALRC 1 C/O Alarm MB2, 3, 4 MBALR1C
MCCBs with accessory covers removed, showing internal accessories fitted
MCCB internal accessory fitting configurations
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MODbreak Moulded Case Circuit Breakers
External Accessories – MODbreak MCCBs
External accessories are field fitted, except for motors which are fitted by NHP.
Refer following pages for additional product information.
Accessory type 250A
MB2 Price
$ 320A, 400A, 630A
MB3 Price
$ 800A, 1250A
MB4 Price
$
Handle Operators
Extension handle and shaft
OFF lockable as standard with up to 3 padlocks or hasps, IP54, door interlocking.
Additional ON position locking available via field conversion to obtain OFF/ON locking.
Lock OFF MB2HANDLESTD 0.00 MB3HANDLESTD 0.00 MB4HANDLESTD 0.00
Direct mount handle
Padlockable up to 3 locks, no door interlocking,
Lock OFF handle MB2HANDLEDIRECT 0.00 MB3HANDLEDIRECT 0.00 - 0.00
MCCB toggle lock – captive
Suits single 5-7 mm padlock MB2CAPLOCK 0.00 MB3CAPLOCK 0.00 MB4CAPLOCK 0.00
Motor operator
Includes motor and internal MCCB mounted motor indication flag auxiliary block – must be NHP factory or branch installed
240V AC control, 50-60Hz MB2MOTOR240VAC 0.00 MB3MOTOR240VAC 0.00 -
Terminal covers & interpole barriers
Terminal covers supplied in sets of 2, IP20 entry insert covers supplied as standard
Interpole barriers supplied with new MCCBs as standard for the line side only, 1 per pole.
Standard 3P MB2TCSTD3P 0.00 MB3TCSTD3P 0.00 MB4TCSTD3P 0.00
Standard 4P - 0.00 - 0.00 MB4TCSTD4P 0.00
Wide 3P MB2TCWIDE3P 0.00 MB3TCWIDE3P 0.00 -
Wide 4P MB2TCWIDE4P 0.00 MB3TCWIDE4P 0.00 -
Flush 3P MB2TCFLUSH3P 0.00 MB3TCFLUSH3P 0.00 -
Flush 4P - 0.00 - 0.00 -
Interpole barrier (set of 3) MB2POLEBARRIER MB3POLE BARRIER MB4POLEBARRIER
Attached busbar 3 pole set of 3 MB2ATTBAR3P 0.00 MB3ATTBAR3P 0.00 MB4FCB3P 0.00
4 pole set of 4 MB2ATTBAR4P 0.00 MB3ATTBAR4P 0.00 MB4FCB4P 0.00
Mechanical Interlock
Rear mounting, MCCB MB2MECHINT250 0.00 MB3MECHINT400 0.00 -
mounting plate included - MB3MECHINT630 0.00 -
Electronic MCCB OCR tester
MBOCRTESTER
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MODbreak Moulded Case Circuit Breakers
External Accessories – MODbreak MCCBs
Extension shaft handles
Available for MCCBs to 1250A
Mounts on front of MCCB without removal of accessory cover
Padlock OFF as standard
Padlock OFF handle field conversion to padlock ON
Suits up to three 5-7mm padlocks or multi lock hasps
Door interlock in ON position, selectable for padlock OFF.
Side switch selector prevents or allows door opening if padlocked
Easy to see ON / OFF / TRIP indication
MCCB rating label can be seen with handle installed
Push to trip button accessible while handle installed
IP 54 degree of protection when door mounted
1.5mm diameter Door Defeat access hole at base of handle
Handle kit includes 275mm x 10mm2 shaft, handle, MCCB mechanism OFF Padlocking and use of the door interlock feature
Direct mount handles
Available for MCCBs to 630A
Mounts on MCCB without removal of accessory cover
Handles are padlockable OFF as standard
Handles can be field converted to lock ON
Suits up to three 5-7mm padlocks or multi lock hasps
Handles are not door interlocking.
Easy to see ON / OFF / TRIP indication
MCCB rating label can be seen with handle installed
Push to trip button accessible while handle installed
IP 54 degree of protection
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MODbreak Moulded Case Circuit Breakers
External Accessories – MODbreak MCCBs
Captive Toggle Padlocking Mechanism Consists of a brushed stainless steel lock attachment, which can be easily customer fitted via 4 hexagonal head mounting screws. Features
Suitable for MB2, MB3 and MB4 MCCBs 20A to 1250A. Types: MB2CAPLOCK, MB3CAPLOCK, MB4CAPLOCK.
MB2 toggle lock bracket fits within the MCCB’s 45mm DIN cut-out for door or escutcheon mounting.
MB3 toggle lock fits within the MCCBs standard 78mm toggle area cut-out.
If an MCCB trip occurs, a reset operation can be performed without the need to remove the lock captive attachment.
No special spacing required between side by side mounted MCCBs. Captive lock attachment fitted Lock OFF Lock ON
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MODbreak Moulded Case Circuit Breakers
External Accessories – MODbreak MCCBs
Motor Operators
Motor operators
For 250AF and 630AF MCCBs.
ON / OFF & Charged/Discharged indication.
Spring charge mechanism.
Selector switch for Auto/Manual operation and padlocking.
Padlock facility for locking in OFF position (up to 3 padlocks).
Resetting time < 250msec & Closing time < 90 msec.
High mechanical & electrical endurance.
Accessible internal back up fuse for extended motor life.
Access to the protection setting on MCCB possible when motor fitted.
True indication for ON/OFF & Discharged & charged.
MCCB right side internal accessory space occupied when motor fitted.
Replaceable 1.6A fuse as standard.
OFF/ON terminal wiring is activated by via dry contact closure only.
MBMOT motor operators are NHP factory or branch fit.
Motors or handles can be fitted to interlocked MCCBs
Motors or handles can be fitted to interlocked MCCBs
MB MOT Motor operator electrical & mechanical data
MB2 MB3
Operating voltage (V AC) 240 240 Operating voltage (%) 85 – 110% 85 – 110% Closing time (ms) 60 90 Opening time (ms) 300 450 Power consumption (VA) 350 500 Life / No. of operations 12000 10000 Door cut out (mm x mm) 96 x 96 96 x 96 IP protection, on the front IP30 IP30 Operating frequency 2 per min 1 per min Minimum control impulse time (ms) 300 450
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MODbreak Moulded Case Circuit Breakers
External Accessories – MODbreak MCCBs
Mechanical interlocks Allows two MCCBs to be mechanically interlocked using a base plate and rear walking beam interlock, in a side by side configuration.
For 250AF and 630AF MCCBs
Rear walking beam mechanical interlock supplied on mounting plate
Interlock kit plate pole configurations : 3P+3P, 3P+4P, 4P+3P, 4P+4P
Mixed frame sizes cannot be interlocked
Customer can fit interlock using knockout on rear of MCCB
Internal and external accessories to be fitted Mechanically interlocked 4P+3P MCCBs
Motor operators available for transfer switching
MCCB right side internal accessory pocket occupied when motor fitted
Manual Transfer Switches (MTS) using toggles or handles are customer assembled.
Basic or Automatic Transfer Switches using motors and external controllers are NHP factory assembled.
Refer following pages for information on order Basic (BTS) and Automatic transfer switches (ATS).
Mechanical Interlock fitting
Fail Safe rear walking beam mechanical interlock
Interlock supplied pre-mounted to a metal mounting plate
Plate suits MCCB poles: 3P- 3P, 3P- 4P, 4P- 3P and 4P- 4P
MCCBs of different frame sizes cannot be interlocked
User fit interlock via removal of rear MCCB knockouts
Interlocking two MCCBs takes around 5-10 minutes
MCCB toggle only operation if required
MCCBs accept motors or handles
Suitable for mounting MCCBs through an escutcheon or door cut-out
250AF MCCB have a DIN, 47mm size toggle cut-out Motors or handles can be fitted to interlocked MCCBs
Knockout at rear of MCCB MCCBs mounted to the front of MCCB plate with actuators inserted knockout at rear of MCCB
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MODbreak Moulded Case Circuit Breakers
External Accessories – MODbreak MCCBs
Terminal cover options
Available for MCCBs 250AF to 1250A
Wide, standard, flush terminal covers
Wide covers physically longer for larger cables or busbars
3 and 4 pole covers
Covers come complete with IP20 end cover knock outs
Increases IP Form for switchboard construction
Rigid rubber interpole barriers supplied with MCCBs as standard
Covers designed for chassis mounted MCCB
Hole per pole for electrical probe testing.
Front IP covers & interpole barriers are supplied with new MCCBs as standard
Standard cover Wide cover
Flush cover
IP20 finger touch protection using MB terminal covers
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MB800 MCCB Chassis MODbreak MB chassis assemblies are designed to suit MODbreak Moulded Case Circuit Breakers. The busbars are fully dipped and type tested, and are suitable for 250AF MCCB’s rated 63A to 250A. (50A to 250A)
MB 18 way Chassis for 250AF MCCB’s
MB 12 way chassis showing MCCBs mounted, including flush terminal covers MB2TCFLUSH3P on the user connection side. The same covers can also be fitted to the Tee Off connection side for IP20 touch protection
MCCBs on Total MCCBs Chassis pan Poles each side on chassis Height (mm) Pan Width Catalogue Number
6 1 2 105 370 MB80006U 12 2 4 210 370 MB80012U 18 3 6 315 370 MB80018U 24 4 8 420 370 MB80024U 30 5 10 525 370 MB80030U 36 6 12 632 370 MB80036U 42 7 14 737 370 MB80042U 48 8 16 840 370 MB80048U 60 10 20 1050 370 MB80060U 72 12 24 1260 370 MB80072U
NOTES: 1. Height dimensions are for pan size only. For cut-out details and other dimensions refer to following page. 2. An MB chassis metal pan width is 370mm.
With MCCBs mounted on both sides the total width is 380mm. With flush terminal covers added to the MCCB load side, the total width is 405mm.
3. Terminals extend 53.5mm beyond the dimensions shown above, top and bottom.
Chassis technical details:
Chassis type Amps kA Suit MCCB MCCB dimensions H W D
MB 800 800 36 kA for 1 second MB250 163 105 96 800 40 kA for 0.5 second
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MB800 MCCB Chassis Dimensions mm:
MB chassis with MB2TCFLUSH3P cover shown fitted to chassis Tee Off side of MCCB
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MBC MCCB High Current Chassis Features:
Suits 250AF and 630AF MCCBs with trip unit ranging 50A to 630A.
Double sided chassis types for 3 pole MCCBs
1250 A, 1600 A or 2200 A rated main bars.
11 enclosure sizes to suit application height space.
Front connect tags supplied as standard.
Complies with AS/NZS 3439, AS/NZS 3000 – 2007.
Form of separation can be up to 4bih. AS/NZS 3439.1: 2000 (Annex ZF).
Circuit breakers are reverse fed as standard.
Assembled to order from stocked parts by NHP Chassis Box Selection (no Tee offs fitted, specify from next page)
Chassis Size Main bar rating
(A) Icw kA
for 1 sec MCCB unit space (mm)
Overall height (mm)
Catalogue Number
Price $
1 15 U 610 MBC12153 0.00
2 18 U 718 MBC12183 0.00
3 21 U 826 MBC12213 0.00
4 24 U 932 MBC12243 0.00
5 27 U 1030 MBC12273 0.00
6 1250A 65 30 U 1150 MBC12303 0.00
7 33 U 1258 MBC12333 0.00
8 2 x 10x20mm bars 36 U 1366 MBC12363 0.00
9 39 U 1474 MBC12393 0.00
10 42 U 1582 MBC12423 0.00
11 45 U 1690 MBC12453 0.00
1 15 U 610 MBC16153 0.00
2 18 U 718 MBC16183 0.00
3 21 U 826 MBC16213 0.00
4 24 U 932 MBC16243 0.00
5 27 U 1030 MBC16273 0.00
6 1600A 65 30 U 1150 MBC16303 0.00
7 33 U 1258 MBC16333 0.00
8 2 x 10x30mm bars 36 U 1366 MBC16363 0.00
9 39 U 1474 MBC16393 0.00
10 42 U 1582 MBC16423 0.00
11 45 U 1690 MBC16453 0.00
1 15 U 610 MBC22153 0.00
2 18 U 718 MBC22183 0.00
3 21 U 826 MBC22213 0.00
4 24 U 932 MBC22243 0.00
5 27 U 1030 MBC22273 0.00
6 2200A 65 30 U 1150 MBC22303 0.00
7 33 U 1258 MBC22333 0.00
8 2 x 10x50mm bars 36 U 1366 MBC22363 0.00
9 39 U 1474 MBC22393 0.00
10 42 U 1582 MBC22423 0.00
11 45 U 1690 MBC22453 0.00
Notes: Height excludes extended and attached busbar.
Overall chassis depth when MCCB’s are fitted is 269 mm.
Refer next page for chassis Tee Off ordering details.
For detailed dimensions, escutcheon/door cut-outs, and ordering form, refer following pages.
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MBC MCCB High Current Chassis
TEE OFF’s MBC Chassis and Tee Offs are NHP FACTORY ASSEMBLED
Frame MCCB Amp Frame (A)
MCCB width (U = units)
Double sided Cat. No.
Price $
MB2 250 Narrow 250 3 U MBCDN2503 0.00 MB3 400-630 Narrow 400-630 4 U MBCDN6303 0.000.00 MB3 400-630 Wide 400-630 6 U MBCDW6303 0.00
Ordering notes 1. Add Tee Offs as required to the chassis enclosure to complete the components list required. 2. 1 x double sided tee off kit will accommodate 2 MCCBs, 1 on each side of the chassis. 3. For ordering MBC Chassis an ordering layout form is to be used. 4. Add the price of the tee offs required to the price of the chassis to calculate a list price. 5. MB3 400 / 630A MCCB’s fitted with a same width narrow cover = 4 units in width 6. MB3 400 / 630A MCCB’s fitted with a “wide” width cover = 6 units in width 7. Bottom or top extended main bar are optional. 8. For MCCB terminal cover selection use refer MCCB accessories. 9. Only circuit breakers of the same width can be mounted opposite each other.
Component selection example:
Main chassis components:
Chassis components Quantity Chassis box 1600 A, less tee offs MBC16183 1 630 A tee off set wide cover MBCDW6303 1 400 A tee off set narrow cover MBCDN6303 1 250 A tee off set MBCDN2503 1 250 A tee off set MBCDN2503 1
Terminal covers are ordered as required for the MCCB line and load terminals. Flush covers are used for the chassis tee off side. Testing: The MBC (HC) chassis has been unconditionally type tested (no MCCBs fitted) by NHP, with an Icw short time rating of 65 kA for 1 second.
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MBC High Current Chassis Order Form
Customer: Account No:
Deliver to: Order No:
Quantity:
Price: $
Contact: Req'd Delivery: / /
UNITS
1
2
3 X4 X5
6
7 Top Entry only
8 Bottom Entry only
9 Top and Bottom Entry
10 No Extended Bar - Connect via MCCB
11 1250 Amp 2 -10 x 20 mm main bars
12 1600 Amp 2 -10 x 30 mm main bars
13 2200 Amp 2 -10 x 50 mm main bars
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Size 1 15 610 mm
16 Qty Units Total Type
17 x 3 = 250A
Size 2 18 718 mm x 5 = 250A
19 x 4 = 400A
20 x 6 = 400A
Size 3 21 826 mm x 4 = 630A
22 x 6 = 630A
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Size 4 24 934 mm Total units
25
26 * 37.5mm gap each side of MB2 using wide covers (total 75mm)
Size 5 27 1042 mm * 37.5mm gap each side of MB3 using wide covers (total 75mm)
28
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Size 6 30 1150 mm NOTES
31
32
Size 7 33 1258 mm
34
35
Size 8 36 1366 mm
37
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Size 9 39 1474 mm * Chassis are supplied crated and without MCCB's fitted
40 * Circuit breakers to be fitted reverse fed by customer
41 * Pan Width = 440 mm including mounting channel
Size 10 42 1582 mm * Depth = 269 mm from rear to escutcheon
43 * 1 Unit = 36 mm
44
Size 11 45 1690 mm
MCCB LINE SIDE BOLTS
250 AMPS M6 7Nm
400 - 630 AMPS M8 14Nm
MAIN BAR CONNECTIONS 44Nm
Document version 11/02/13
Internal Use Only
NHP Branch
Chassis Reference Drawing MD I00581200 Rev 0 NHP Contact
MBCD250 Narrow Tee Off Dwg Set MD L005080 Rev 2 Sales Order
MBCDN630 Narrow Tee Off Dwg Set MD L005083 Rev 2 Works Order
MBCDW630 Wide Tee Off Dwg Set MD L005086 Rev 2 Requested Ex works Date: / /
TORQUE SETTINGS
M10
CHASSIS SPECIFICATION
Chassis
Supply
Connection
RATING
65kA for 1
sec
3 POLE TEE OFFS - DOUBLE SIDED
CUSTOMER REFERENCE DRAWINGS
MOUNTING, CUT OUT AND CONNECTION DETAILS
MB2 Narrow Terminal Cover
MB2 Wide Terminal Cover
MB3 Narrow Terminal Cover
MB3 Wide Terminal Cover
MB3 Narrow Terminal Cover
MB3 Wide Terminal Cover
POLES
MCCB
Config.
3 Pole - only
Double Sided - only
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MBC MCCB High Current Chassis Example photo, showing an MBC chassis with MCCBs using direct mount handles, and with terminal covers installed. The terminal covers are fitted to the tee off side and user connection side of the MCCBs. The top two MCCBs are fitted with WIDE terminal covers, and the others with same width standard covers. The tee off side of the MCCBs have flush terminal covers fitted which cover the MCCB terminal area, as well as the exposed tee off chassis connection points. Isolator option for Chassis Where a user wishes to use a load break switch to isolate the chassis, NHP can supply a Socomec 1600A load break switch, plus busbar connection kit which consists of a set of bars.
MBC double sided chassis showing MCCBs with direct mount handles and terminal covers fitted. Refer accessories pages for cover and other accessories selection.
MBC double sided chassis showing Socomec SLB16003P isolator using a link kit as shown. A clear polycarbonate cover for the link kit is also available (not shown). Link kits are available for chassis with 1250A And 1600A main bars. 2200A main bar kits are not available at this time. Additional details are available on request. Catalogue numbers of link kit parts: Link kit HCCONNTAG16003P Link kit cover HCSLB1600C
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MBC MCCB High Current Chassis
Reference dimensions
MBC Chassis cut-out details
Notes
1. 1600A Chassis shown above with 2 off 30mm x 10mm busbars per phase. 2. Other busbar options: 1250A busbars, 2 off 20mm x 10mm per phase
2200A busbars, 2 off 50mm x 10mm per phase 3. Cut out dimensions are centred on the MCCB toggles.
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MODbreak MCCB Transfer Switches Basic Transfer Switches MODbreak transfer switches are available from 20A to 630A, and consist of mechanically and electrically interlocked circuit breakers, with motors fitted. The transfer switches come pre-wired on a metal panel. Automatic Transfer Switches Basic Transfer Switches can be coupled with either TemLogic TL101CIP electronic or TLP2 relay timer changeover controllers to enable Automatic Transfer Switching (ATS). The changeover controller automatically commences a change over to a standby power supply in the event of power failure. Manual Transfer Switches MODbreak Manual Transfer Switches are available from 20A to 630A, and consist of rear walking beam mechanically interlocked circuit breakers on a metal mounting plate. Manual transfer switches are assembled by the user, using interlock kits and MCCBs that are ordered from the MCCB and accessories pages in this catalogue. Basic Transfer Switches (BTS) Features:
Poles: 3P+3P or 4P+4P MCCB configurations. Pre-assembled on a mounting plate Rear walking beam interlock used Pre-wired with electrical interlocking 240V AC control motor operated MCCBs
Ordering:
MB transfer switches are manufactured to order.
Contact NHP for availability.
TM = Thermal Magnetic, E = Electronic Trip Unit.
BTS = Basic Transfer with motors
BTS selection chart and Catalogue numbers
MCCB’s used Ampere
Range
Fault I/C 415V kA
OCR Type
3P Outline Dims. (mm)
3 Pole BTS Cat No.
Price $
4 Pole BTS Cat No.
Price $
Icu/Ics H W D
MB263N_TM
50.4-63
305
209
235
MBTSTM6333
0.00
MBTSTM6344
0.00
MB263N_TM 80-100 MBTSTM10033 0.00 MBTSTM10044 0.00 MB263N_TM 100-125 50 TM MBTSTM12533 0.00 MBTSTM12544 0.00 MB263N_TM 128-160
MBTSTM16033 0.00 MBTSTM16044 0.00
MB263N_TM 200-250 MBTSTM25033 0.00 MBTSTM25044 0.00
MB240N_SE 16-40
336 237 241
MBTSE4033 0.00 MBTSE4044 0.00
MB2100N_SE 40-100 50 E MBTSE10033 0.00 MBTSE10044 0.00 MB2250N_SE 100-250 MBTSE25033 0.00 MBTSE25044 0.00
MB3320N_TM 256-320 MBTSTM32033 0.00 MBTSTM32044 0.00 MB3400N_TM 320-400 50 TM 550 433 341 MBTSTM40033 0.00 MBTSTM40044 0.00 MB3630N_TM 504-630 MBTSTM63033 0.00 MBTSTM63044 0.00
MB3400N_SE 160-400 50 E 550 433 341 MBTSE40033 0.00 MBTSE40044 0.00 MB3630N_SE 252-630 MBTSE63033 0.00 MBTSE63044 0.00
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22
MODbreak Transfer Switch Controller
Type: TL101CIP The TemLogic 2 TL101 automatic transfer switch (ATS) controller will control & supervise the primary & secondary power of an installation and initiate transferring of the mains to a back-up source in the event of main source interruption. The utility changeover, from one power source to the other can be fully automatic or manually operated. The logic controller includes the necessary functions to monitor energy distribution systems and generating sets, and MODbreak transfer switch. Automatic transfer takes place when predefined conditions entered by the user take place such as:
Power failure of one power source
Power supply voltage/frequency etc. not falling within programmed limits
The need to use the most economical power source The TL101CIP is programmed from the front panel with visual led indication. Alternatively, the circuit breakers can be manually controlled using the function keys on the front face of the controller. The list below details typical applications:
Utility-utility, utility to generator or generator to generator changeover
Generator management with automatic test and rotation emergency
Three phase, two phase or single-phase voltage controls
L-L voltage and/or L-N voltage control
Controls of minimum voltage, maximum voltage, phase loss, asymmetry, minimum frequency, maximum frequency, with independent enable and delay
Technical Features
Flush mount 144 x 144 mm housing
Plug in removable connections
Phase to phase voltage measure inputs: 80-800VAC
Voltage transformer programming
TRMS voltage measure
Frequency measurement 45-65Hz
Control function: phase sequence, phase loss, max/min voltage, asymmetry, max/min frequency
Two displays for voltage/frequency viewing
8 digital programming inputs
7 relay programmable outputs
RS232 interface
Description Catalogue Number Price $
Controller with interface panel TL101CIP 0.00
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23
MODbreak Transfer Switch Controller
Type: TLP2 Timer / Relay logic controller The basic timer / relay logic controller includes the following standard features:
Voltage and phase sequence sensing relay
Time delay normal to emergency
Time delay emergency to normal
Common power supply relays
Normal supply phase sequence relay
4 supply fuses
Control wiring terminals
A 4 position mode selector switch is provided loose (Manual / Automatic / Test / Off) Description Catalogue Number Price $
Controller for MODbreak Transfer Switches TLP2
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24
MODbreak Wiring Diagrams
MB MOT Motor Operators
Transfer Switch with remote electrical control - non automatic switching
MB MOT Motor Operator for MB2 and MB3 MCCBs
M
31
MODbreak MCCB ratings chart
MCCB Ampere Frames (AF) 250 A 400A 630A 800/1000/1250
MCCB Types MB2 MB3 MB3 MB4
D N D N D N N
Poles 3 or 4 3 or 4 3 or 4 3 or 4
OCR (Over Current Relay) data
Current Ratings of OCRs (A) 63, 80, 100, 125, 160, 200, 250 320, 400 630 A 800, 1000, 1250
OCR types Thermal Magnetic & Electronic Thermal Magnetic & Electronic Thermal Magnetic & Electronic Electronic
Thermal magnetic dial adjustment range 0.8 to 1.0 x In and 6 – 10 x Im 0.8 to 1.0 x In and 6 – 10 x Im 0.8 to 1.0 x In and 6 – 10 x Im -
MTX1 Electronic OCR data
OCR adjustments via DIP switches
Adjustment range (LT) 0.4 to 1.0 in steps of 0.05 or OFF
Adjustment of LT time delay Ir 10s at 6 Ir or 3s at 6 Ir and 10s at 7.2 Ir or 3s at 7.2 Ir
LT Thermal memory Enable / Disable (θ = ON or 0 = OFF)
Adjustment range (ST) Ir 1.5, 2.5, 4, 5.5, 6.5, 8 x Ir
Short time setting time delay 100ms / Instantaneous or OFF
Fixed Instantaneous OCR setting 10 x In 10 x In
MCCB data
Impulse withstand Voltage (kV) 8 8 8 8
Rated Operational Voltage (V) (max) 690 690 690 690
Rated Insulation Voltage (V) 750 750 750 750
Standard and approvals AS/NZS / IEC / CE AS/NZS / IEC / CE AS/NZS / IEC / CE AS/NZS / IEC /CE
AS
/NZ
S 6
0947
.2
IEC
-609
47-2
Icu kA
230 / 240 V AC 65 85 65 85 65 85 85
400 / 415 V AC 36 50 36 50 36 50 50
500 V AC 25 36 25 36 25 36 25
550 V AC 18 25 15 20 15 20 20
600 V AC 16 18 12 18 12 18 16
690 V AC 10 15 8 15 8 10 10
250VDC (3P in series) 15 25 15 25 15 25 -
500VDC (3P in series) L/ R<15ms 5 10 5 10 5 10 -
Ics as % lcu 100% 100% 100% 100% 100% 100% 100%
Life span Mechanical 25000 15000 15000 8000
Electrical @1.0 In 10000 4000 4000 750
Operating Frequency (Hz) 50 / 60
Total Opening Time <10 msec <20 msec
Finger-proof Terminals Via use of MB terminal covers
Ambient Temperature -5°C to + 55°C
Storage Temperature - 35°C to + 70°C
Mounting Positions Vertical and 90° to the left and right
Dimensions (W x D x H) 3 Pole 105 x 96 x 179 140 x 111.5 x 266 140 x 111.5 x 266 210 x 143 x 370
4 Pole 140 x 95 x 179 183.5 x 111.5 x 266 183.5 x 111.5 x 266 278 x 143 x 370
Weight (kg) (3/4 Pole) 2.5 / 3.3 5.5 / 7.2 6 / 7/.8 13 / 16
Accessories
Internal
Auxiliary Contact 1C/O or 2C/O
Trip Alarm Contact 1C/O
Auxiliary & Trip Alarm Contact 1C/O + 1C/O
Shunt Release 110 - 415V 50/60Hz, 110 - 220V DC
Under Voltage Release 220 - 240 V 50 Hz
External
Extension handle √ √ √ √
Direct mount handle √ √ √ X
Handle mechanism padlock attachment √ √ √ √
Captive toggle padlock attachment √ √ √ √ Trapped key interlock 4 extension hdle X X X X
Mechanical Interlock √ √ √ X
Motor operator for remote operation √ √ √ X
Transfer switch controller √ √ √ √
Spreader bars for MCCB terminals √ √ √ √
Terminal covers - same width as MCCB √ √ √ √
Terminal covers - wide width √ √ √ X
Terminal covers - flush √ √ √ X
Interpole barriers – c/w with MCCB √ √ √ √
Chassis rated 800A for 250AF √ √ √ X
Chassis (high current) up to 630AF √ √ √ X
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32
MCCB to MCB Selectivity and Cascading
Upstream THERMAL MAGNETIC MCCB, either 36kA or 50kA
Downstream Thermal magnetic MCBs, MOD6 or DIN-T series
415V AC system voltage
MB2 NTM
250AF MCCB Thermal Magnetic, 50kA
MB3 NTM
400AF MCCB Thermal Magnetic, 50kA
Downstream Current Rating
MB263N_TM 63A
MB2100N_TM 100A
MB2125N_TM 125A
MB2160N_TM 160A
MB2250N_TM 250A
MB3320N_TM 320A
MB3400N_TM 400A
MOD6 6kA MCB's & RCBO's
≤32 25 / 25 25 / 25 25 / 25 25 / 25 25 / 25 -- / -- -- / --
40 -- / 25 25 / 25 25 / 25 25 / 25 25 / 25 -- / -- -- / --
50-63 -- / 25 -- / 25 25 / 25 25 / 25 25 / 25 -- / -- -- / --
DIN-T 6kA MCB's & RCBO's
≤32 25 / 30 25 / 30 25 / 30 25 / 30 25 / 30 -- / -- -- / --
40 -- / 30 25 / 30 25 / 30 25 / 30 25 / 30 -- / -- -- / --
50-63 -- / 30 -- / 30 25 / 30 25 / 30 25 / 30 -- / -- -- / --
DIN-T 10kA MCB's & RCBO's
≤32 30 / 36 30 / 36 30 / 36 30 / 36 30 / 36 30 / 30 30 / 30
40 -- / 30 30 / 30 30 / 30 30 / 30 30 / 30 30 / 30 30 / 30
50-63 -- / 30 -- / 30 30 / 30 30 / 30 30 / 30 30 / 30 30 / 30
DIN-TH 10kA MCB's
80 -- / -- -- / -- -- / 25 15 / 25 15 / 25 10 / 10 10 / 10
100 -- / -- -- / -- -- / -- 15 / 25 15 / 25 10 / 10 10 / 10
125 -- / -- -- / -- -- / -- -- / -- 15 / 25 10 / 10 10 / 10
DIN-T 15kA MCB's
≤32 30 / 36 30 / 36 30 / 36 30 / 36 30 / 36 30 / 30 30 / 30
40 -- / 30 30 / 30 30 / 30 30 / 30 30 / 30 30 / 30 30 / 30
50-63 -- / 30 -- / 30 30 / 30 30 / 30 30 / 30 30 / 30 30 / 30
Upstream MB2 DTM
250AF MCCB Thermal Magnetic, 36kA
MB3 DTM
400AF MCCB Thermal Magnetic, 36kA
Downstream Current Rating
MB263D_TM 63A
MB2100D_TM 100A
MB2125D_TM 125A
MB2160D_TM 160A
MB2250D_TM 250A
MB3320D_TM 320A
MB3400D_TM 400A
MOD6 6kA MCB's & RCBO's
≤32 25 / 25 25 / 25 25 / 25 25 / 25 25 / 25 -- / -- -- / --
40 -- / 25 25 / 25 25 / 25 25 / 25 25 / 25 -- / -- -- / --
50-63 -- / 25 -- / 25 25 / 25 25 / 25 25 / 25 -- / -- -- / --
DIN-T 6kA MCB's & RCBO's
≤32 25 / 30 25 / 30 25 / 30 25 / 30 25 / 30 -- / -- -- / --
40 -- / 30 25 / 30 25 / 30 25 / 30 25 / 30 -- / -- -- / --
50-63 -- / 30 -- / 30 25 / 30 25 / 30 25 / 30 -- / -- -- / --
DIN-T 10kA MCB's & RCBO's
≤32 30 / 36 30 / 36 30 / 36 30 / 36 30 / 36 30 / 30 30 / 30
40 -- / 30 30 / 30 30 / 30 30 / 30 30 / 30 30 / 30 30 / 30
50-63 -- / 30 -- / 30 30 / 30 30 / 30 30 / 30 30 / 30 30 / 30
DIN-TH 10kA MCB's
80 -- / -- -- / -- -- / 25 15 / 25 15 / 25 10 / 10 10 / 10
100 -- / -- -- / -- -- / -- 15 / 25 15 / 25 10 / 10 10 / 10
125 -- / -- -- / -- -- / -- -- / -- 15 / 25 10 / 10 10 / 10
DIN-T 15kA MCB's
≤32 30 / 36 30 / 36 30 / 36 30 / 36 30 / 36 30 / 30 30 / 30
40 -- / 30 30 / 30 30 / 30 30 / 30 30 / 30 30 / 30 30 / 30
50-63 -- / 30 -- / 30 30 / 30 30 / 30 30 / 30 30 / 30 30 / 30
Notes:
The first number is the Selectivity kA rating / the second is the Cascade kA rating. Example: Selectivity 25 / 30 Cascade
-- or --/-- Indicates no Selectivity or Cascade.
Selectivity: The power contacts of the Upstream MCCB do not latch open when a fault is cleared by the downstream MCB.
Cascading: The upstream MCCB assists the downstream MCB in clearing a higher level fault than the MCBs normal breaking capacity.
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33
MCCB to MCB Selectivity and Cascading
Upstream ELECTRONIC MCCB either 36kA or 50kA
Downstream Thermal magnetic MCBs, MOD6 or DIN-T series
415V AC system voltage
Upstream MB2 NSE
250AF MCCB Electronic OCR, 50kA
MB3 NSE
400AF MCCB Electronic OCR, 50kA
Downstream Current Rating
MB240N_SE 40A
MB2100N_SE 100A
MB2250N_SE 160A
MB2250N_SE 250A
MB3400N_SE 400A
MOD6 6kA MCB's & RCBO's
≤32 20 / 25 20 / 25 20 / 25 20 / 25 -- / --
40 -- / 25 20 / 25 20 / 25 20 / 25 -- / --
50-63 -- / 25 -- / 25 20 / 25 20 / 25 -- / --
DIN-T 6kA MCB's & RCBO's
≤32 20 / 30 20 / 30 20 / 30 20 / 30 -- / --
40 -- / 30 20 / 30 20 / 30 20 / 30 -- / --
50-63 -- / 30 -- / 30 20 / 30 20 / 30 -- / --
DIN-T 10kA MCB's & RCBO's
≤32 20 / 36 20 / 36 20 / 36 20 / 36 20 / 30
40 -- / 30 20 / 30 20 / 30 20 / 30 20 / 30
50-63 -- / 30 -- / 30 20 / 30 20 / 30 20 / 30
DIN-TH 10kA MCB's
80 -- / -- -- / -- 10 / 15 10 / 15 10 / 10
100 -- / -- -- / -- 10 / 15 10 / 15 10 / 10
125 -- / -- -- / -- -- / -- 10 / 15 10 / 10
DIN-T 15kA MCB's
≤32 20 / 36 20 / 36 20 / 36 20 / 36 20 / 30
40 -- / 30 20 / 30 20 / 30 20 / 30 20 / 30
50-63 -- / 30 -- / 30 20 / 30 20 / 30 20 / 30
Upstream MB2 DSE
250AF MCCB Electronic OCR, 36kA
MB3 DSE
400AF MCCB Electronic OCR, 36kA
Downstream Current Rating
MB240D_SE 40A
MB2100D_SE 100A
MB2250D_SE 160A
MB2250D_SE 250A
MB3400D_SE 400A
MOD6 6kA MCB's & RCBO's
≤32 20 / 25 20 / 25 20 / 25 20 / 25 -- / --
40 -- / 25 20 / 25 20 / 25 20 / 25 -- / --
50-63 -- / 25 -- / 25 20 / 25 20 / 25 -- / --
DIN-T 6kA MCB's & RCBO's
≤32 20 / 30 20 / 30 20 / 30 20 / 30 -- / --
40 -- / 30 20 / 30 20 / 30 20 / 30 -- / --
50-63 -- / 30 -- / 30 20 / 30 20 / 30 -- / --
DIN-T 10kA MCB's & RCBO's
≤32 20 / 36 20 / 36 20 / 36 20 / 36 20 / 30
40 -- / 30 20 / 30 20 / 30 20 / 30 20 / 30
50-63 -- / 30 -- / 30 20 / 30 20 / 30 20 / 30
DIN-TH 10kA MCB's
80 -- / -- -- / -- 10 / 15 10 / 15 10 / 10
100 -- / -- -- / -- 10 / 15 10 / 15 10 / 10
125 -- / -- -- / -- -- / -- 10 / 15 10 / 10
DIN-T 15kA MCB's
≤32 20 / 36 20 / 36 20 / 36 20 / 36 20 / 30
40 -- / 30 20 / 30 20 / 30 20 / 30 20 / 30
50-63 -- / 30 -- / 30 20 / 30 20 / 30 20 / 30
Notes:
The first number is the Selectivity kA rating / the second is the Cascade kA rating. Example: Selectivity 20 / 30 Cascade
-- or --/-- Indicates no Selectivity or Cascade.
Selectivity: The power contacts of the Upstream MCCB do not latch open when a fault is cleared by the downstream MCB.
Cascading: An upstream MCCB assists a downstream MCB to clear a higher fault than the MCB’s breaking capacity.
M
34
MCCB to MCCB Selectivity and Cascade
36kA upstream ELECTRONIC MCCB
Downstream Thermal magnetic or Electronic MCCBs
415V AC system voltage
Upstream
MCCB
MB3 DSE
MCCB Electronic MTX1.0 OCR, 36kA
MB4 DSE
MCCB Electronic MTX1.0 OCR, 36kA
Downstream MCCB
Current Rating
MB3400D_SE 400 A
MB3630D_SE 630 A
MB4800D_SE 800 A
MB41000D_SE 1000 A
MB41250D_SE 1250 A
MB240D_SE MB240N_SE
40 A 20 / 36 20 / 36 36 / 36 36 / 36 36 / 36
MB263D_TM MB263N_TM MB2100D_SE MB2100N_SE
63 A 20 / 36 20 / 36 36 / 36 36 / 36 36 / 36
MB2100D_TM MB2100N_TM MB2100D_SE MB2100N_SE
80 A 20 / 36 20 / 36 36 / 36 36 / 36 36 / 36
MB2100D_TM MB2100N_TM MB2100D_SE MB2100N_SE
100 A 20 / 36 20 / 36 36 / 36 36 / 36 36 / 36
MB2125D_TM MB2125N_TM MB2125D_SE MB2125N_SE
125 A 20 / 36 20 / 36 36 / 36 36 / 36 36 / 36
MB2160D_TM MB2160N_TM MB2160D_SE MB2160N_SE
160 A 20 / 36 20 / 36 36 / 36 36 / 36 36 / 36
MB2250D_TM MB2250N_TM MB2250D_SE MB2250N_SE
200 A 20 / 36 20 / 36 36 / 36 36 / 36 36 / 36
MB2250D_TM MB2250N_TM MB2250D_SE MB2250N_SE
250 A 20 / 36 20 / 36 36 / 36 36 / 36 36 / 36
MB3320D_TM MB3320N_TM MB3400D_SE MB3400N_SE
400 A -- -- 36 / 36 36 / 36 36 / 36
MB3630D_TM MB3630N_TM MB3630D_SE MB3630N_SE
630 A -- -- 36 / 36 36 / 36 36 / 36
Notes:
The first number is the Selectivity kA rating / the second is the Cascade kA rating. Example: Selectivity 20 / 36 Cascade
“--“ Indicates no Selectivity or Cascade.
Selectivity: The Upstream MCCB power contacts do not latch open a fault is cleared by the downstream MCCB.
Cascading: An upstream MCCB assists a downstream MCCB to clear a higher fault than the MCCB’s breaking capacity.
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35
MCCB to MCCB Selectivity and Cascade
50kA upstream ELECTRONIC MCCB
Downstream Thermal magnetic or Electronic MCCBs
415V AC system voltage
Upstream
MCCB
MB3 NSE
MCCB Electronic MTX1.0 OCR, 50kA
MB4 NSE
MCCB Electronic MTX1.0 OCR, 50kA
Downstream MCCB
Current Rating
MB3400N_SE 400 A
MB3630N_SE 630 A
MB4800N_SE 800 A
MB41000N_SE 1000 A
MB41250N_SE 1250 A
MB240D_SE MB240N_SE
40 A 20 / 50 20 / 50 36 / 50 36 / 50 36 / 50
MB263D_TM MB263N_TM MB2100D_SE MB2100N_SE
63 A 20 / 50 20 / 50 36 / 50 36 / 50 36 / 50
MB2100D_TM MB2100N_TM MB2100D_SE MB2100N_SE
80 A 20 / 50 20 / 50 36 / 50 36 / 50 36 / 50
MB2100D_TM MB2100N_TM MB2100D_SE MB2100N_SE
100 A 20 / 50 20 / 50 36 / 50 36 / 50 36 / 50
MB2125D_TM MB2125N_TM MB2125D_SE MB2125N_SE
125 A 20 / 50 20 / 50 36 / 50 36 / 50 36 / 50
MB2160D_TM MB2160N_TM MB2160D_SE MB2160N_SE
160 A 20 / 50 20 / 50 36 / 50 36 / 50 36 / 50
MB2250D_TM MB2250N_TM MB2250D_SE MB2250N_SE
200 A 20 / 50 20 / 50 36 / 50 36 / 50 36 / 50
MB2250D_TM MB2250N_TM MB2250D_SE MB2250N_SE
250 A 20 / 50 20 / 50 36 / 50 36 / 50 36 / 50
MB3320D_TM MB3320N_TM MB3400D_SE MB3400N_SE
400 A -- -- 36 / 50 36 / 50 36 / 50
MB3630D_TM MB3630N_TM MB3630D_SE MB3630N_SE
630 A -- -- 36 / 50 36 / 50 36 / 50
Notes:
The first number is the Selectivity kA rating / the second is the Cascade kA rating. Example: Selectivity 20 / 50 Cascade
“--“ Indicates no Selectivity or Cascade.
Selectivity: The Upstream MCCB power contacts do not latch open a fault is cleared by the downstream MCCB.
Cascading: An upstream MCCB assists a downstream MCCB to clear a higher fault than the MCCB’s breaking capacity.
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36
MODcurve software MODcurve is a selectivity analysis software package developed by NHP specifically for the Australian and New Zealand markets. Designed around the MOD series of ACBs and MCBs as well as NHP’s extensive range of MCBs and fuses, MODcurve presents a user-friendly interface for conducting selectivity studies. (MODcurve V6, July 2013)
Features:
Simple and easy to use
Can be used for coordination with upstream HV fuses
Includes both MOD6 and Din T ranges of MCBs
User defined devices can be added
Ability to print report with single line diagram and circuit breaker settings included
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37
MODbreak Motor starting table
Motor circuit application table for DOL starting
General purpose circuit breaker selection for 3 Phase, 4 Pole, 415 V AC motors requiring short circuit protection.
Breaker type and current rating (A)
Motor kW Approximate FLC (Amps)
MOD6 or DINT MCB
MB2 Thermal Magnetic
MCCB
MB2 Electronic
MCCB
MB3 Thermal Magnetic
MCCB
MB3 Electronic
MCCB
MB4 Electronic
MCCB
0.37 1.1 4
0.55 1.5 4
0.75 1.8 6
1.1 2.6 10
1.5 3.4 10
2.2 4.8 16
3.0 6.5 20
4 8.2 25
4.5 9 32 40
5.5 11 32 40
7.5 14 40 40
10 19 50 100
11 21 50 63 100
15 28 63 63 100
18.5 34 100 3) 100 100
22 40 125 3) 100 100
25 46 125 3) 100 250
30 55 125 250
37 66 125 250
45 80 125 250
55 100 200 250 400
75 135 250 250 320 400
90 160 250 250 320 400
110 200 250 250 320 400
132 230 400 400
160 270 400 400
185 320 400 400
200 361 400 400 800
220 380 630 630 800
250 430 630 630 800
280 480 630 630 800
300 510 630 630 800
375 650 1000
450 750 1000
Notes:
1) The DOL table is based on holding 125 % FLC continuously and 600 % FLC for 10 seconds. 2) The primary task of the above circuit breakers is to provide short circuit and cable protection. The motor starter would normally be supplied with an
overload relay that will detect lower level current overloads or phase loss. 3) 80, 100 and 125 amp refers to Din-T10H type. 4) MOD6 MCBs are C curve MCBs. Din-T MCBs are C or D curve types, and either can be used for motor starting. 5) Thermal magnetic MCCB current adjustment range 0.8 to 1.0 x In. Set magnetic trip to maximum or equivalent to 15 x motor FLC. 6) Electronic MCCB base current adjustment ranges 0.4 to 1.0 x In. Set Short Time setting to maximum or equivalent to 15 x Motor FLC. 7) Lower ampere rated MCCBs are possible for many applications. The above MCCB sizes generally provide additional ampere capacity. 8) MODbreak MCCBs have a maximum instantaneous trip setting of 10 x In. Consideration should be given to the use of high efficiency motors with a short
time current inrush of between 15 to 20 x In. 9) Refer NHP for tables for reduced voltage, and Type 2 coordination motor starting.
M
38
MODbreak Motor starting table
Motor circuit application table for DOL FIRE PUMP starting duty
Circuit breaker selection for 3 Phase, 4 Pole, 415 V AC motors requiring short circuit protection
Breaker type and current rating (A)
Motor kW Approximate FLC (Amps)
MOD6 or DINT MCB
MB2 Thermal Magnetic
MCCB
MB2 Electronic
MCCB
MB3 Thermal Magnetic
MCCB
MB3 Electronic
MCCB
MB4 Electronic
MCCB
0.37 1.1 4
0.55 1.5 6
0.75 1.8 6
1.1 2.6 10
1.5 3.4 10
2.2 4.8 20
3.0 6.5 25
4 8.2 32
4.5 9 32 40
5.5 11 32 40
7.5 14 50 40
10 19 63 100
11 21 63 63 100
15 28 100 100 100
18.5 34 125 3) 100 100
22 40 125 3) 125 100
25 46 125 3) 125 250
30 55 160 250
37 66 160 250
45 80 250 250
55 100 250 250 320
75 135 250 320
90 160 400 400
110 200 400 400
132 230 400 400
160 270 400 400
185 320 400 400
200 361 630 630
220 380 630 630
250 430 630 630
280 480 800
300 510 800
375 650 1000
450 750 1000
Notes:
1) The DOL table is based on holding 125 % FLC continuously and 600 % FLC for 20 seconds. 2) The primary task of the above circuit breakers is to provide short circuit and cable protection. The motor starter would normally be supplied with an
overload relay that will detect lower level current overloads or phase loss. 3) 80, 100 and 125 amp refers to Din-T10H type. 4) MOD6 MCBs are C curve MCBs. Din-T MCBs are C or D curve types, and either can be used for motor starting. 5) Thermal magnetic MCCB current adjustment range 0.8 to 1.0 x In. Set magnetic trip to maximum or equivalent to 15 x motor FLC. 6) Electronic MCCB base current adjustment ranges 0.4 to 1.0 x In. Set Short Time setting to maximum or equivalent to 15 x Motor FLC. 7) MODbreak MCCBs have a maximum instantaneous trip setting of 10 x In. Consideration should be given to the use of high efficiency motors with a short
time current inrush of between 15 to 20 x In. 8) Refer NHP for tables for reduced voltage, and Type 2 coordination motor starting.
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39
MODbreak technical data Watts Loss for Thermal Magnetic and Electronic MCCBs
MCCB Watts loss per pole (W)
MB2 250 D/N_TM/SE 250A 18
MB3 400 D/N_TM/SE 400A 22
MB3 630 D/N_TM/SE 630A 47
MB4 800 D/N_TM/SE 800A 32
MB4 1000 D/N_TM/SE 1000A 50
MB4 1250 D/N_TM/SE 1250A 78
Let-through and Cut-off values at 415V AC - Thermal Magnetic and Electronic MCCBs
MCCB
Cut-off (kA) Let-through (x106 A2seconds)
36 kA MCCB 50 kA MCCB 36 kA MCCB 50 kA MCCB
MB2 250 D/N_TM/SE 250A 19 22 1.4 1.6
MB3 400 D/N_TM/SE 400A 25 26 2 2.4
MB3 630 D/N_TM/SE 630A 30 32 3 3.6
MB4 800 D/N_TM/SE 800A - 65 - 26
MB4 1000 D/N_TM/SE 1000A - 65 - 30
MB4 1250 D/N_TM/SE 1250A - 65 - 30
Temperature Ratings for Thermal Magnetic MCCBs
MCCB type Ambient Temperature (oC)
40 45 50 55 60 65 70
MB2 125 D/N_TM 125A 125 123 121 119 118 116 114
MB2 160 D/N_TM 160A 160 156 152 148 144 140 136
MB2 200 D/N_TM 200A 200 192 184 176 168 160 152
MB2 250 D/N_TM 250A 250 241 232 224 215 206 198
MB3 400 D/N_TM 400A 400 391 382 373 364 355 346
MB3 630 D/N_TM 630A 630 621 612 603 594 585 576
Temperature Ratings for Electronic MCCBs
MCCB type Ambient Temperature (oC)
40 45 50 55 60 65 70
MB2 250 D/N_SE 40A 40 40 40 40 40 40 40
MB2 250 D/N_SE 63A 63 63 63 63 63 63 63
MB2 250 D/N_SE 100A 100 100 100 100 100 100 100
MB2 250 D/N_SE 125A 125 125 125 125 125 125 125
MB2 250 D/N_SE 160A 160 160 160 160 160 160 160
MB2 250 D/N_SE 250A 250 250 250 243 236 229 222
MB3 400 D/N_SE 400A 400 400 400 393 386 379 372
MB3 630 D/N_SE 630A 630 630 630 605 585 565 545
MB4 1250 N_SE 800A 800 800 800 790 780 770 760
MB4 1250 N_SE 1000A 1000 1000 1000 1000 1000 990 980
MB4 1250 N_SE 1250A 1250 1250 1250 1235 1220 1205 1190
M
40
MODbreak Characteristic curves
Thermal Magnetic MCCBs
MB2: 63A, 100A, 125A, 160A, 200A, 250A
MB3: 400A / 630A
M
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MODbreak Characteristic curves
Electronic MCCBs: 40A to 1250A
MTX1: MB2 / MB3 / MB4 MTX1: MB2 / MB3 / MB4
MTX1 short Time setting: MB2 / MB3 / MB4
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MODbreak Electronic MCCB DIP Switch Setting
Refer below for DIP switch positions and settings.
Long Time Delay (LTD) Overload Protection (It = x IN)
Thermal Memory The thermal memory feature is enabled or disabled by switching the DIP switch above the symbol θ on the OCR facia. Up = BYPASS (OFF) / Down = ON. The thermal memory feature is similar to the effects of hot and cold starting on an overload relay or thermal magnetic MCCB. Thermal memory can protect the system from thermal stresses generated by cumulative heating caused by cyclic overload conditions, thereby allowing the MCCB & system to return to a safe operating temperature. This function also allows for an optimisation of cables or busbar protection in the case of low amplitude repetitive faults. The “Advance tripping” of the MCCB also increases overall life and eliminates installation downtime.
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MODbreak Electronic MCCB DIP Switch setting Refer below for DIP switch positions and the resulting setting
Inverse Overload Curve Type Selection Allows a degree of curve adjustment to allow for grading with upstream or downstream devices.
Adjust the tripping characteristics of the MCCB for motor starting to take into account motor start up times.
Refer MODbreak characteristic curves on previous pages for each setting characteristic.
Short Time Delay (STD) Short Circuit Setting (IS = x IN)
Time Delay for Short Circuit Protection Allows for the selection of a short delay just prior to the MCCB tripping if a short circuit occurs.
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About MODbreak Electronic MCCB OCRs Electronic OCR Layout:
• Overload protection LT with selectable inverse time delay
• Adjustable Short Time ST characteristic
• Short circuit (ST) characteristic with selectable time delay
• LT and ST characteristic can be switched OFF
• Fixed instantaneous trip at 10 x In
• Thermal memory enable / disable
• True RMS sensing
Overload Pick-Up Indication LED Improves uptime and productivity, via a visual indicator LED which can be used to monitor an unbalanced load so that proactive measures can be taken to avoid overload conditions. Overload pick-up LED Indicator
% of IR Overload pick-up LED indication
30% Green LED 85% Fast blinking of LED 115% LED operates sequential ON/OFF operations
LED Indicator • When the current flowing through the MCCB is less than 30% of the preset OCR current setting, the LED is OFF. • When the current reaches ≥ 30% of IN, the green LED is ON. • At 85% of Ir the OCR enters alarm mode and starts to blink OFF and ON. • At 115% of Ir the OCR enters into pick up mode and is indicated by sequential ON OFF operations of the LED. • Above the 115% level the OCR will trip the MCCB.
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About MODbreak Electronic MCCB OCRs Example of setting the LTD – Long Time Delay setting, which is used to reset the amp rating of the MCCB.
The DIP switches allow LTD setting changes - refer examples below. The photo below shows the FACTORY DEFAULT settings. The raised white indicator indicates the up or down position of the DIP switch (switch in photo is shown down)
EXAMPLE
250A Trip Unit
EXAMPLE
250A Trip Unit
To calculate the current setting, simply add up the DIP switch multiples. For example: when the DIP switches are switched DOWN the amp ratings are selected.
• 0.4 + 0.05 + 0.1 + 0.2 + 0.25 = 1, in other words, set at 100% of the trip unit rating = 250A. • 0.4 + 0.05 + 0.2 = 0.65 x 250A = 162.5A • 0.4 = 0.4 x 250A = 100A. • If 0.4 and the other LT settings are switched to the upper position, the Long Time characteristic is switched
OFF. The MCCB is now short time and instantaneous only.
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MODbreak MCCB Dimensions
MB2: 16A to 250A
MB2: 16A to 250A with optional spreader busbar tags
Rating Type Dimension mm (A)
63A – 100A Thermal magnetic 25.5 125A – 250A Thermal magnetic 28
40A – 250A Electronic 28
M4 threaded mounting hole
28mm Thermal Magnetic MCCBs 26.5mm Electronic MCCBs
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MODbreak MCCB Dimensions
MB3: 320A to 630A
MB3: 320A to 630A with optional spreader busbar tags
MCCB without spreader bars (top drawing) MCCB with spreader bars (bottom drawing)
MB3 MB4
A 39 41
Dim A Dim B B 37 38
400A Thermal Magnetic: 39mm 400A Thermal Magnetic: 36.6mm C 45 55
400A Electronic: 39mm 400A Electronic: 38mm D 324 344
630A Thermal Magnetic: 43.3mm 630A Thermal Magnetic: 39mm E 370 390
630A Electronic: 43mm 630A Electronic: 39.3mm F 13 11
Terminal width 30.5mm
M5 threaded mounting hole
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MODbreak MCCB Dimensions
MB4: 800A, 1000A and 1250A MB4: 800A, 1000A and 1250A with optional extension busbar tags. 10.5 24 10.5
Bar size: 116 x 45 x 15 mm 14
Material: Tinned copper 11mm θ
116
8 113mm θ slotted 15
13mm θ 22.5 22.5 45
Door Mounting cut-out dimensions
Connection tag height from rear of MCCB is 46.3 mm
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MODbreak MCCB Dimensions
Direct mount handle mounting
MCCB
L1 = Mounting depth MCCB + handle Type L1 L2 L3 L4 L5 L2 / L3 = Door or escutcheon cut-out MB2 122 96 63 53 66 L4 / L5 = Breaker position relative to cut-out MB3 146 121 87 78 82
MB4 156 121 87 78 82
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MODbreak MCCB Dimensions Extension handle mounting
MCCB
Type L1 L L2 L3 MB2 202 L1 = 152 27 84 MB3 233 L1 = 183 39 122
MB4 302 L1 = 252 69 170
MB4 - example
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MODbreak MCCB Dimensions
MB2 MCCB with motor operator fitted MB3 MCCB with motor operator fitted
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MODbreak MCCB Dimensions MB2 Terminal covers – 250AF MCCBs
Typical internal construction for MODbreak terminal covers
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MODbreak MCCB Dimensions
Manual Transfer Switch 250AF – 3 Pole
Manual Transfer Switch 250AF – 4 Pole
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MODbreak MCCB Dimensions
Manual Transfer Switch 630AF – 3 Pole
Manual Transfer Switch 630AF – 4 Pole
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MODbreak MCCB Dimensions Basic Transfer Switch 250AF – Motorised 3 Pole
Basic Transfer Switch 250AF – Motorised 4 Pole
Note1: Escutcheon height is to the underside of the escutcheon.
MB2MOTOR240VAC Motor operators mounted on MCCBs (240VAC) x 2
MB2MOTOR240VAC Motor operators mounted on MCCBs (240VAC) x 2
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MODbreak MCCB Dimensions Basic Transfer Switch 630AF – Motorised 3 Pole
Basic Transfer Switch 630AF – Motorised 4 Pole
Note1: Escutcheon height is to the underside of the escutcheon.
MB3MOTOR240VAC Motor operators mounted on MCCBs (240VAC) x 2
MB3MOTOR240VAC Motor operators mounted on MCCBs (240VAC) x 2
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MODBreak Over-Current Relay (OCR) Tester
General information
MBOCRTESTER facia shown above
NHP Catalogue Number: MBOCRTESTER (code: ST374980000 / DNT20)
NHP MODBreak MCCBs use OCR types “MTX1” which are indicated below
The MBOCRTESTER is suitable for MODbreak MCCBs (not ACBs)
The MBOCRTESTER tester kit consists of:
1 tester. (The tester will need a 240V GPO plug adaptor or a local GPO plug to replace the plug the tester comes with)
2 x D shell 9 pin serial connector, to go from the tester to the MCCB (1 spare lead)
1 x D shell 9 pin serial connector (For an older OCR series not sold by NHP)
MODbreak electronic MCCB OCR Tester MODBreak connector lead Spare connector For other MCCB types (ignore this) Connector lead plugs into MTX1 OCR test socket connection, and to OCR tester’s rear 9 pin serial port.
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MODBreak Over-Current Relay (OCR) Tester
Using the MTX1.0 OCR Release Setting Checker Test Kit
S1 & S2 are OCR checker dial settings that are dependent on the MCCB OCR DIP switch settings
The rocker switch has 3 positions: TEST / OFF / AUX. Power.
When the switch is in AUX mode, the GREEN LED will glow indicating AUX supply is provided to the tester.
The RED LED & display will not be on. When the switch is in TEST mode, the RED LED and display will be on, indicating that the tester is ready to test. The GREEN LED will not be on, ensuring that only one mode can be activated at any time.
Ensure that the MCCB toggle is in ON position when the settings are checked. For setting S1
Over Current Relay (OCR) Setting Setting on OCR Tester OCR Output
MTX1 Over Current Relay
Long Time Characteristic
Short Time Characteristic
S1 S2
50 8 A A At 20mS: OCR trips within 0.06s or 0.00s on display At 100mS: OCR trips within 0.13s on display At 200mS: OCR trips within 0.23s on display
70 5.5 A A
100 4 A A
OFF OFF A A
For setting S2
Over Current Relay (OCR) Setting Setting on OCR Tester OCR Output
MTX1 Over Current Relay
Long Time Characteristic
Short Time Characteristic
S1 S2
60 OFF A B OCR trips within 20 to 50 seconds OCR trips within 86 to 128 seconds OCR trips within 7 to 12 seconds OCR trips within 7 to 12 seconds
80 OFF A A
40 OFF A E
60 OFF A H
40 2.5 A A At 20mS: OCR trips within 0.06s or 0.00s on display At 100mS: OCR trips within 0.13s on display At 200mS: OCR trips within 0.23s on display
60 2.5 A C
100 1.5 A A
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MODBreak Installation Instructions: MB2, MB3, MB4 MCCBs
MB2, MB3, MB4 – General installation precautions
MB2, MB3, MB4 – MCCB toggle operation and tripping the MCCB
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MODbreak Installation Instructions
MB2 Interpole barriers
MB3 Interpole barriers
Exhaust gas vents from the line side (top) of the MCCB, which is the opposite end to where the current adjustment dials are located.
Exhaust gas vents from the line side (top) of the MCCB, which is the opposite end to where the current adjustment dials are located.
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MODbreak Installation Instructions MB4 Interpole barriers
MB2 Mounting orientation and termination mounting, torque, capacity and weight
Mount in any one of these three orientations only
Exhaust gas vents from the line side (top) of the MCCB, which is the opposite end to where the current adjustment dials are located.
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MODbreak Installation Instructions MB3 Mounting orientation and termination mounting, torque, capacity and weight
MB4 Mounting orientation and termination mounting, torque, capacity and weight
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MODbreak Installation Instructions MB2, MB3 – Adjustment of THERMAL MAGNETIC trip unit
MB2, MB3, MB4 – Adjustment of ELECTRONIC Over Current Relay Refer previous pages for more detailed setting diagrams
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MODbreak Installation Instructions MB2, MB3, MB4 – Accessory cover removal, internal accessory mounting and wire routing
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MODbreak Installation Instructions MB2, MB3, MB4 – Internal accessory cover fitting
MB2, MB3, MB4 – Internal accessory removal