NEMA-C78.21-2003 (PAR-R Shape Standards).pdf

ANSI C78.21-2003 Revision of ANSI C78.21-1995 with all supplements

American National Standard

for electric lamps—

PAR and R Shapes

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American National Standard Approved October 30, 2003 Secretariat: ANSLG - National Electrical Manufacturers Association

For Electric Lamps—

PAR and R Shapes

An American National Standard implies a consensus of those substantially concerned with its scope and provisions. It is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether he has approved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. Users are cautioned to obtain the latest editions. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute.

Copyright © 2003 by American National Standard Lighting Group—NEMA 1300 North 17th Street, Suite 1847, Rosslyn VA 22209



ii


Approval of an American National Standard requires verification by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. An American National Standard implies a consensus of those substantially concerned with its scope and provisions. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly, and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. The existence of an American National Standard does not in any respect preclude anyone, whether s/he has approved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. It is intended as a guide to aid the manufacturer, the consumer, and the general public. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretations should be addressed to the secretariat or sponsor whose name appears on this title page. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute.

Printed and distributed by: Information Handling Services/Global Engineering Documents 15 Inverness Way East, Englewood, CO 80112-5776 Under Contract with National Electrical Manufacturers Association Copyright � 2003 by American National Standard Lighting Group In Affiliation with National Electrical Manufacturers Association All rights reserved. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without prior written permission of the publisher. Printed in the United States of America

Copyright © 2003 by American National Standard Lighting Group- NEMA 1300 North 17th Street, Suite 1847, Rosslyn VA 22209



iii

Table of Contents

Foreword………………………………………………………………………………………………………

iv

Part I General Information 1 1 Scope……………………………………………………………………………………………

1

2 Normative References………………………………………………………………………..

1

3 Definitions and abbreviations.……………………………………………….………………

2

4 Lamp designations……………………………………………………………………………

2

5 Bulb designations………………………………………………………………………………

2

6 Bulb finish………………………………………………………………………………………

3

7 Beam photometry and classification…………………………………………………………

3

8 Lamp drawings……………………………………………………….………………………...

3

9 Electrical characteristics……………………………………………………………………..

4

10 Requirements…………………………………………………………………………………..

4

11 Information on luminaire design.…………………………………………………………….

4

Part II Lamp Classes 7 Table 1 Standard Lamp Classes with PAR and R Bulbs……………………………………………

9

Part III Lamp Space Drawings

15

Part IV Product Drawings

35

Annexes 41 Annex A Informative References………………………………..……………………………………… 43

Copyright © 2003 by National Electrical Manufacturers Association 1300 North 17th Street, Suite 1847, Rosslyn VA 22209

Second Edition (Date)



iv

Foreword (This Foreword is not part of ANSI C78.21-2003.) Suggestions for improvement of this standard should be submitted to the Secretariat C78, American National Standard Lighting Group, 1300 North 17th Street, Suite 1847, Rosslyn VA 22209. This standard was processed and approved by Accredited Standards Committee on Electric Lamps, C78, and its Working Group, C78 WG-1 for Incandescent, Photo, and Stage-Studio Lamps. Committee approval of the standard does not necessarily imply that all committee members voted for that approval. Information concerning the approval of this standard is based on the documents listed in the table below:

Amendment/Change CDV RV New Edition 78(1)/4113 78(1)/4114

Updates 78(1)/4145 78(1)/4146 David Mullen, Chairman, C78 Bernie Rachel, Technical Coordinator Randolph N. Roy, Secretariat Matthew C. Clark, Coordinating Editor

Copyright © 2003 by American National Standard Lighting Group- NEMA 1300 North 17th Street, Suite 1847, Rosslyn VA 22209




PART I General Information 1 Scope This standard provides physical and electrical characteristics of the group of incandescent lamps that have PAR and R bulb shapes. Lamps with clear, frosted, and lens end bulbs and with clear and prescription lenses and with various reflector coatings are covered. Lamps covered in this standard may contain either of two basic types of light sources; an incandescent filament or a tungsten halogen inner bulb. Sunlamps and heat lamps of the R type are included. Lamps with discharge arc tubes are not included. Other groups of incandescent lamps are covered in the following associated standards: ANSI C78.20-2003, American National Standard for Incandescent Lamps - A, G, PS and Similar Shapes with E26 Medium Screw Bases ANSI C78.22-1995, American National Standard for Incandescent Lamps - A, G, PS and Similar Shapes with E39 Mogul Screw Bases ANSI C78.23-1995, American National Standard for Incandescent Lamps - Miscellaneous Types At the time of issuance of this standard there was no comparable standard published by the International Electrotechnical Commission (IEC). 2 Normative references The following standards contain provisions, which through reference in this text constitute provisions of this American National Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this American National Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. ANSI C78.30-1997, Procedure for Use in Preparation of Incandescent Lamp Space Drawings

ANSI/IEC C78.60360-2002, Standard Method of Measurement of Lamp Cap Temperature Rise ANSI/IEC C78.60432:1-2002, Incandescent Lamps - Safety Specifications - Tungsten Filament Lamps for Domestic and Similar General Lighting Purposes - Part 1 ANSI/IEC C78.60432:2-2002, Incandescent Lamps - Safety Specifications - Tungsten Halogen Lamps for Domestic and Similar General Lighting Purposes - Part 2 ANSI C78.379-1994, Method for the Classification of the Beam Patterns of Reflector Lamps ANSI C79.1-2002, Nomenclature for Glass Bulbs Intended for Use with Electric Lamps ANSI C81.61-1990 (R1996), Electrical Lamp Bases ANSI C81.63-1991 (R1996), Gauges for Electrical Bases and Lampholders

1 Copyright © 2003 by American National Standard Lighting Group – NEMA 1300 North 17th Street, Suite 1847, Rosslyn VA 22209


ANSI C78.21-2003 Revision of ANSI C78.21-1995 with all supplements IESNA LM-20-1994, IESNA Approved Method for Photometric Testing of Reflector-type Lamps IESNA LM-45-2000, IESNA Approved Method for Electrical and Photometric Measurements of General Service Incandescent Filament Lamps IESNA LM-54-1999, IES Guide to Lamp Seasoning Drawings contained herein are not drawn to scale 3 Definitions and abbreviations In addition to bulb and base codes that are defined in the referenced standards, some terms common to the industry are utilized in this standard and used in Table 1. 3.1 MOL (Maximum Overall Length): Distance along the lamp axis from eyelet solder to top or face of bulb. 3.2 LCL (Light Center Length): Distance from the reference plane (eyelet solder for screw bases) to the center of the light-emitting filament of the lamp. 3.3 Class: A grouping of like lamps having the same rated wattage, bulb shape, base, MOL, and bulb finish, including two or more voltage ratings within a voltage range. Each line item in Table 1 is a class. 3.4 Voltage range: A series of rated voltages related to commonly available supply lines. A footnote to Table 1 lists several common voltage ranges that apply to classes of lamps in this standard. 3.5 Rated wattage: Wattage marked on lamp. See IESNA LM-45 for measurement of wattage. 3.6 Rated voltage: The voltage marked on the lamp. If lamps are marked with a range voltage it shall be interpreted that they are appropriate for use on any line voltage within that range. Consult manufacturer’s catalog to determine design voltage. 3.7 Base temperature rise: The surface temperature rise above ambient temperature of a standard test lampholder fitted to the lamp, when measured according to the standard method. Maximum base temperature rise limits apply to base-up burn position at which maximum temperature rise occurs unless lamps are restricted to other burn positions by their manufacturers. See ANSI/IEC C78.60360 for method of measurement. 3.8 Service: The field of most common application for a given lighting source. Service indicated in this standard is not necessarily the only application. “Spotlight" and "floodlight” are generic terms only used to describe either spot or flood light service. 4 Lamp designations This standard does not place any control over lamp designations. Incandescent reflector lamps are generally designated by wattage, bulb type, and voltage ratings. Additional codes may be applied by lamp manufacturers. See lamp manufacturers’ catalogs for more detailed information. 5 Bulb designations Bulb designations used in this standard are defined in ANSI C79.1 and used in Table 1. Since the traditional eighth-inch sizes have long been utilized in some lamp designations, they are so used in this standard. The metric equivalents are shown in parentheses.

2 Copyright © 2003 by American National Standard Lighting Group - NEMA 1300 North 17th Street, Suite 1847, Rosslyn VA 22209



Certain bulbs are noted in Table 1 with "BR" and “ER” designations, which are used by most manufacturers. These are the same as "RB" and "RE" bulb designations in ANSI C79.1. PAR is a designation that means “parabolic aluminized reflector” mostly applied to pressed hard glass, two-part (lens and reflector) reflector lamps. Some R-lamps are also made with hard glass, so noted in Table 1. PAR16 compact reflector lamps made with ceramic enclosures are also listed. Other R-lamps are made with soft glass, and soft glass is implied unless otherwise noted. Bulb finish 6.1 Reflector Bulbs used in PAR and R lamps usually have an internal metallic coating on the reflector section of the bulb for directing a light beam out through the lens. Sometimes dichroic coatings are used in the reflector section of the bulb, for selective transmission of infrared energy through that area. 6.2 Lens Only those R lamps with clear, inside-frosted, and lens end lens sections are considered in this standard unless otherwise noted. Similarly, PAR lamps with clear lenses, stippled patterns, or molded prescriptions are considered. Colored coatings are not covered unless specifically noted. Beam photometry and classification See IESNA LM-20 for method of photometry testing of reflector lamps. See ANSI C78.379 for information on classification of beam patterns. Lamp Drawings 8.1 Lamp space drawings in Part III For each bulb-base-MOL category, lamp space drawings in Part III of this standard show the maximum limits of the space that may be occupied by any part of the bulb. A typical bulb shape is shown as a dashed line within that maximum space. The space shown shall accommodate the longest and shortest lamps with maximum bowl and neck diameters and maximum bulb eccentricity. These drawings were prepared in accordance with the lamp space drawing procedures in ANSI C78.30. The following general conditions apply to the construction of these space drawings: a. Straight lines are used as much as possible to simplify the space outlines. All compromises

with the actual space are in excess of the actual space required. b. All excursions of a lamp bulb are shown relative to a fixed-position base. c. Bulb eccentricity with respect to the base axis is a combination of allowances for angular tilt

(skewness) and lateral displacement (true eccentricity). An eccentricity angle of 3 degrees applies generally to incandescent lamps unless special applications require tighter limits.

d. The base contact-making gauge for each type of base controls the space near the rim of the

base in the base-to-neck transition zone. e. All dimensions are in millimeters unless otherwise specified.



ANSI C78.21-2003 Revision of ANSI C78.21-1995 with all supplements f. Most figure numbers shown in the figures and in Table 1 relate directly to old American National

Standards for that category. For instance, Figure C78.21-254 is derived from the superseded Standard, ANSI C78.254-1966.

8.2 Product drawings in Part IV A different situation occurs with those lamps that are not held in place by the base to lampholder fit. These rim-mounted PAR lamps are held in place at a seating plane on the bulb, and the terminals provide only electrical continuity, not mechanical stability for the entire lamp. Drawings of such lamps are product drawings and not lamp space drawings. They define the dimensions of finished lamps. Their positions and space requirements are determined by the rim-holding devices of their luminaires. 9 Electrical characteristics The values of lamp voltage, current, and wattage shown in Part II are those nominal values that apply after the lamps have been seasoned. See IESNA LM-54 for guidelines on lamp seasoning. 10 Requirements 10.1 Screw bases and special gauges shall be as described in ANSI C81.61 and C81.63. 10.2 Individual lamps shall satisfy limits for MOL that apply to their class as shown in Table 1. 10.3 All finished lamps shall have controlled dimensions, bulb size, and eccentricity such that they occupy a space within dimensions shown in the appropriate lamp space drawing in Part III. 10.4 Finished lamps of the rim-mounted type shall comply with the dimensions shown in the product drawings in Part IV. 10.5 The average base temperature rise of samples of a lamp of any specific rated voltage shall not be greater than the limit shown for the lamp class in Table 1. 10.6 See ANSI/IEC C78.60432:1 for other safety requirements for tungsten filament reflector lamps, and see ANSI/IEC C78.60432:2 for other safety requirements for tungsten halogen reflector lamps. 11 Information for luminaire design Certain lamp types listed in Table 1 have characteristics, which restrict their applications. In addition, lamp manufacturers may have issued caution notices or instructions that indicate restrictions in the application of PAR and R lamps. Observe the following information and the manufacturers' notices. 11.1 Burning position Certain incandescent lamps are designed for operating only in specific burning positions, and misapplication could cause overheating. 11.2 Lampholder temperature Some of the lamps specified in Table 1 can exhibit base temperatures that are high enough to cause deterioration or damage to some lampholder materials. Those lamps should be used only in lampholders or connectors designed to withstand higher temperatures.




11.3 Base temperature The lamp manufacturers may provide information that some lamps specified in Table 1, when used in certain luminaires, could generate enough heat to weaken the lamps’ basing cement, even when the lampholders can withstand the heat. Those lamps shall be used only in luminaires designed to maintain the proper temperature of the bases. 11.4 Bulb temperature Some lamps covered by this standard operate at such high bulb temperatures that contact between the bulb and a foreign object could shatter the bulb. Avoid such contacts. 11.5 Heat in beam Some lamps covered by this standard emit sufficient heat in their beam patterns to damage materials close by that are flammable or susceptible to heat damage. Avoid lamp operation near such materials. 11.6 Moist conditions Metal parts of certain PAR and R lamps may become a shock hazard when moisture is present. De-energize the circuits before touching these lamps. 11.7 Protective screen Use of a protective screen to protect persons may be advisable for some lamps. 11.8 Shielding Tungsten halogen inner bulbs operate at high temperature and internal gas pressure above atmospheric pressure. Consequently, a bulb could shatter. Certain lamps may also emit some amount of ultraviolet radiation. Therefore, a suitable protective shield, screening technique, or both shall be used with the luminaire to protect people and surroundings from both hazards. An integral outer envelope, surrounding a tungsten halogen inner bulb, may satisfy this shielding requirement. See the lamp manufacturers instructions. 11.9 Accessory equipment Certain lamps may not perform satisfactorily if accessory equipment or parts of a luminaire are attached to or touch them. 11.10 Exposure limitation Due to the amount of energy emitted by certain lamps, such as sunlamps, the times of exposure of persons working near them may have to be limited. 11.11 Protection Many of the lamps covered in this standard have hard glass bulbs and can withstand the outdoor environment. Others, due to higher wattage input and hotter bulb temperature, cannot be used outdoors without additional protection provided by an appropriate luminaire. 11.12 Special luminaires Lamps of the cool-beam type are suitable for use only in luminaires specifically designed for those lamps.




THIS PAGE INTENTIONALLY

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PART II - Lamp Classes





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Table 1 - Standard Lamp Classes Using PAR and R Bulbs

Lamp Maximum Overall Length (MOL)Line

No. WattageVoltage (Note 1)

Bulb (Note 2)

Base (Note 3) mm inches

Figure Number

Figure Location

Max. Base

Temp. Rise °K(Note 4) Service

1 25

A R14(R44) E17 65.1 2-9/16 C78.21-265 Part III --- Spot, floodlight

2 40 A PAR16(PAR51)(ceramic)

E26 84.0 3-5/16 C78.21-279 Part III 145 Halogen spot, floodlight

3 30 A R20(R63)

E26 100.0 3-15/16 C78.21-254 Part III

145 Spot, floodlight



5 45 A PAR38(PAR121)(hard glass)

E26/50x39 135.0 5-5/16 C78.21-238 Part III 145 Halogen spot, floodlight

6 50 A R20(R63)

E26 100.0 3-15/16 C78.21-254 Part III 145 Spot, floodlight



8 50 A PAR30(PAR95)(hard glass, Short neck)


9 50 A PAR30(PAR95)(hard glass, Long neck)


10 50 12V PAR36(PAR114) Screw terminal(hard glass)

69.9 2-3/4 C78.21-264 Part IV N/A Spot, floodlight

11 50 A BR30(BR95)


Continued on next page

9


ANSI C78.21-200X Revision of ANSI C78.21-1995 with all supplements




Bulb (Note 2)

Base (Note 3) Mm Inches Figure Number

Figure Location

Max. Base


12 50 A ER30(ER95)







E26/50X39 135.0 5-5/16 C78.21-238 Part III 145 Halogen spot, floodlight


E26/50X39 135.0 5-5/16 C78.21-238 Part III 145 Halogen spot, floodlight

17 65 A BR30(BR95)


18 65 A BR30(BR95)




20 75 A R30(R95)

E26 136.5 5-3/8 C78.21-266 Part III 145 Spot, floodlight (Note 5)

21 75 A BRL38(BRL121)


22 75 A ER30(ER95)


23 75 A PAR30(PAR95)(hard glass, short neck)



10






Bulb (Note 2)

Base (Note 3) Mm inches Figure Number

Figure Location

Max. Base


24 75 A PAR30(PAR95)

(hard glass, long neck)



E26/50x39 135.0 5-5/16 C78.21-238 Part III 145 Spot, floodlight



27 75 A BR40(BR127) E26 166.7 6-9/16 C78.21-237 Part III 145 Spot, floodlight

28 85 A BR30(BR95)(hard glass)






31 100 A BR40(BR127)



E26/50x39 135.0 5-5/16 C78.21-238 Part III 145

Spot, floodlight



34 120 A ER40(ER125)


35 120 A BR40(BR125)



11


ANSI C78.21-200X Revision of ANSI C78.21-1995 with all supplements




Bulb (Note 2)


Figure Location

Max. Base


36 120 A BRL38(BRL121)



E26/50x39 135.0 5-5/16 C78.21-238 Part III 175 Cool Beam spot, floodlight



39 150 A BR40(BR127)

E26 166.7 6-9/16 C78.21-237 Part III 145 Spot, floodlight (Note 5)


G12.7 101.6 4 C78.21-258 Part IV N/A Spot, floodlight

41 250 A R40(R127)

E26/53x39 187.3 7-3/8 C78.21-236 Part III --- Infrared

42 250 A BR40(BR127)

E26 166.7 6-9/16 C78.21-237 Part III --- Infrared

43 250 A BR40(BR127)(hard glass)

E26 174.6 6-7/8 C78.21-256 Part III --- Infrared

44 250 A R40(R127)(hard glass)



E39 196.9 7-3/4 C78.21-269 Part III --- Sunlamp

46 300 A BR40(BR127)



E39 184.2 7-1/4 C78.21-255 Part III --- Spot, floodlight


12






Bulb (Note 2)


Figure Location

Max. Base


48 300 A PAR56(PAR178)

(hard glass)

GX16d/12 127.0 5 C78.21-259 Part IV N/A Spot, floodlight

49 375 A R40(R127)





E39 184.2 7-1/4 C78.21-255 Part III --- Spot, floodlight


GX16d/31 152.4 6 C78.21-263 Part IV N/A Spot, floodlight

NOTES: 1 Common lamp voltage ratings for voltage code A are 120V, 115-125V, 125V, and 130V. 2 Standard lens finishes are clear, inside frost, lens end, stippled, and prescription. Reflector sections have an internal metallic or dichroic coating. See Section 5. 3 Common American terminology for the base codes are E17 for intermediate screw base, E26/24 for medium screw base, E26/50x39 and E26/53x39 for skirted

medium crew bases, E39 for mogul screw base, G12.7 for medium side prong, G16d/12x52 for mogul end-prong, G16d/32x52 for extended mogul end-prong, and screw terminal.

4 See Clauses 3.7 and 10.5. 5 Lamps no longer available in USA.

13




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14




PART III - Lamp Space Drawings




THIS PAGE

INTENTIONALLY LEFT BLANK




187.3

51.6

26.8

145.0 DIA.

45°

28.240.4

66.0

122.0 R

71.0

3.549°

45.0 DIA.

Bulb: R40(R127) Base: Special Skirted Medium Screw, E26/53x39 Overall Length: 187.3 (7-3/8 in.) max

171.5 (6-3/4 in.) min Eccentricity: 3O maximum All dimensions are millimeters unless otherwise specified.

Figure C78.21-236




45°

24.439.5

3.0 48.0 DIA.

49.0

144.0 DIA.

127.5 R

166.7

28.2

47°

Bulb: BR40(R127) Base: Medium Screw, E26/24 Overall Length: 166.7 (6-9/16 in.) max

150.8 (5-15/16 in.) min Eccentricity: 3O maximum

All dimensions are in millimeters unless otherwise specified.

Figure C78.21-237




26.848.8

135.0

135.0 DIA.

54°

254 R

28.2

40.4

Bulb: PAR38 (PAR121) Base: Skirted Medium Screw, E26/50x39 Overall Length: 135.0 (5-5/16 in.) max

127.8 (5-1/32 in.) min Eccentricity: 3O Maximum

All dimensions are millimeters unless otherwise specified.

Figure C78.21-238




24.4

28.2

3.0

35.0

33.0 DIA.

45°45.0

75.0 DIA.65.9 R

100.046.5°

Bulb: R20(R63) Base: Medium Screw, E26/24 Overall Length: 100.0 (3 15/16 in.) max

90.5 (3-9/16 in.) min Eccentricity: 3O Maximum All dimensions are millimeters unless otherwise specified.

Figure C78.21-254




4.1

184.251°

60.058.0

R127.1

40.6

56°

145.0 DIA.

47.0 DIA.

43.2

Bulb: R40(R127) Base: Mogul Screw, E39/41 Overall Length: 184.2 (7 1/4 in.) max



Figure C78.21-255




3.8

28.2

174.6

R127.1

24.4

45°

53.0

145.5

47.5

45°

48.0 DIA.

Bulb: BR40 (BR127) Base: Medium Screw, E26/24 Overall Length: 174.6 (6-7/8 in.) max


Figure C78.21-256




3.8

28.2

193.7

R127.1

145.0 DIA.

66.6

26.8

49°

46.0 DIA.

54.0

45°

69.0

40.0

Bulb: R40(R127) Base: Special Skirted Medium Screw, E26/53x39 Overall Length: 193.7 (7-5/8 in.) max

177.8 (7 in.) min Eccentricity: 3O Maximum All dimensions are millimeters unless otherwise specified.

Figure C78.21-257




24.0 DIA.

49.0 DIA.

65.1

15.2

77°

16.7

22.2 27.0

R35.5

29.6

2.051°

45°

Bulb: R14 (R44) Base: Intermediate Screw, E17/20 Overall Length: 65.1 (2-9/16 in.) max



Figure C78.21-265




28.2

24.4

45°

46.7

54°

43.1 DIA.

136.5

1.1

19.1

108.5 DIA.R117.6

Bulb: BR30 (BR95) Base: Medium Screw, E26/24 Overall Length: 136.5 (5-3/8 in.) max


Figure C78.21-266




28.2

24.4

45° 2.8

35.0

111.0 DIA.

161.9

R127.0

56°

54.5

41.5 DIA.

Bulb: ER30(R95) Base: Medium Screw, E26/24 Overall Length: 161.9 (6-3/8 in.) max


Figure C78.21-267




187.3

24.4

45°63.0

5.5

32.5

56°

144.0 DIA.

30°

R125.0

154.0

28.2

Bulb: ER40(R127) Base: Medium Screw, E26/53x39 Overall Length: 187.3 (7-3/8 in.) max

171.5 (6-3/4 in.) min Eccentricity: 3O maximum All dimensions are millimeters unless otherwise specified.

Figure C78.21-268




4.0

184.251°

60.058.0

R127.1

40.6

56°

145.0 DIA.

47.0 DIA.

43.2

196.9

18.0

R53.0

R13.0

52.0

R3.0

Bulb: R40(R127) Base: Mogul Screw, E39/41 Overall Length: 196.9 (7 3/4 in.) max

168.3 (6-5/8 in.) min without protrusion Eccentricity: 3O Maximum NOTES 1 This lamp does not have to include an extra dimple on top of the bulb 2 All dimensions are millimeters unless otherwise specified.

Figure C78.21-269




24.4

46.7

120.7

108.5 DIA.

28.2

43.1 DIA.

889 R

54°

45°

Bulb PAR30 (PAR95) long neck Base E26/24 medium screw Maximum overall length 120.7 (4-3/4 in.) Minimum overall length 109.2 (4-5/16 in.) Eccentricity 3º maximum

All dimensions are millimeters unless otherwise noted

Figure C78.21-275




92.1

24.4

45°

106.0 DIA.

28.2

163 R

Bulb PAR30 (PAR95) short neck Base E26/24 medium screw Maximum overall length 92.1 (3-5/8 in.) Minimum overall length 82.0 (3-1/4 in.) Eccentricity 3º maximum


Figure C78.21-276




88.9

24.4

45°

73.0 DIA.

28.2

161 R

52°

38.0

37.0 DIA.

Bulb PAR20 (PAR63) Base E26/24 medium screw Maximum overall length 88.9 (3-1/2 in.) Minimum overall length 73.0 (2-7/8 in.) Eccentricity 3º maximum


Figure C78.21-277




147.6

24.4

45°

138.4 DIA.

28.2

127 R

44.0

46.0 DIA.

50°

Bulb BRL38 (BRL121) Base E26/24 medium screw Maximum overall length 147.6 (5-13/16 in.) Minimum overall length 134.9 (5-5/16 in.) Eccentricity 3º maximum


Figure C78.21-278




84.0

24.4

45°

55.8 DIA.

28.2

45.9

45.9 DIA.

60°

R133.4

Bulb PAR16 (PAR51) Base E26/24 medium screw Maximum overall length 84.0 (3-5/16 in.) Minimum overall length 69.9 (2-3/4 in.) Eccentricity 3º maximum

Notes: Dimensions are in millimeters unless otherwise noted

Figure C78.21-279





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PART IV - Product Drawings





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N

L

M

G

C

D

J

AB

SEATING PLANE

E

HOLDING LEDGE

SEATING PLANE

Standard Dimension

(inches) Nearest Metric Equivalent

(millimeters)

Labels in Drawings Min. Max. Min. Max.

A B C D E G J L M

5.6 - -

0.49 - - -

0.415 0.135

5.7 5.26 0.92 0.53 5.1 4.0 2.75 0.440 0.165

142.2 - -

12.5 - - -

10.54 3.43

144.8 133.7 23.4 13.5 129.5 101.6 69.9 11.18 4.19

N 0.030 Nominal 0.76 Nominal NOTE The spacing and basic design of the G12.7 base contacts are similar to the folded blade construction of a two pole, two wire attachment plug shown in UL817 and ANSI/NEMA WD6. See these documents for other contact design options.

Bulb: PAR46 (PAR146) Base: G12.7 Medium Side Prong Max. Overall Length: 101.6mm (4.0 in)

Figure 78.21 – 258




A

B

C

D

EG

SEATING PLANE

HOLDING LEDGE

BOTTOM VIEW

LPP

M

J�

�

�

Standard Dimension


(millimeters)


A B C D E G J L M P � ��

�

7.000 - -

0.460 - - -

0.516 0.105 0.475 99o30’

69° 129o30’

7.031 6.687 1.15 0.540 6.380 5.000 3.500 0.575

- 0.525

100°30' 71°

130o30’

177.80 - -

11.68 - - -

13.11 2.67 12.07

- - -

178.59 169.85 29.21 13.72 162.05 127.00 88.90 14.61

- 13.34

- - -

Bulb: PAR56 (PAR178) Base: GX16d/12 Mogul End-Prong Max. Overall Length: 127.0mm (5.0 in.)

Figure C78.21 - 259




AB

C

D

FE

S

G

H

�

�

L

SEATING PLANE

HOLDING LEDGE

LOCATING LUG SPACING

Standard Dimension


(millimeters) Labels in Drawings

Min. Max. Min. Max. A B C D E F G H L

7.970 7.660

- 0.885

- - - -

0.550

8.100 7.690 1.305 0.975 7.040 7.620 6.000 1.816 0.575

202.44 194.56

- 22.48

- - - -

13.97

205.74 195.33 33.15 24.77 178.82 193.55 152.40 46.13 14.61

S 0.090 Nominal 2.3 Nominal � 119.5� 120.5� - - NOTES: 1 This dimension applies 0.015 inch (0.38 mm) above the retaining flange. 2 The holding ledge is normally a plane surface of 3/32 inch (2.38 mm) minimum flat. In some lamps the ledge is slightly curved. Use seating plane rather than holding ledge for controlling lamp aim.

Bulb: PAR64 (PAR203) Base: GX16d/31 Extended Mogul End-Prong Overall Length: 152.4mm (6.0 in.) max.

Figure C78.21-263




N

L

M

G

C

D

J

SEATING PLANE

AB

S

E

HOLDING LEDGE

Standard Dimension


(millimeters)


A B C D E G J L M

4.360 - -

0.485 - - -

0.415 0.135

4.460 4.050 0.59 0.565 3.85 2.75 1.625 0.440 0.165

110.74 - -

12.32 - - -

10.54 3.43

113.28 102.87 15.0 14.35 97.8 69.9 41.3 11.18 4.19

N 0.030 Nominal 0.76 Nominal S 0.078 0.140 1.98 3.56

Bulb: PAR36 (PAR114) Base: Screw Terminals Max. Overall Length: 69.9mm (2.75 in)

Figure C78.21-264




ANNEXES





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Annex A

Informative References

ANSI C81.62-1991, Lampholders for Electric Lamps ANSI/NEMA WD 6-1988, Wiring Devices - Dimensional Requirements ANSI/UL 153-2002, Underwriters Laboratories Inc. Standard for Safety - Portable Electric Luminaires UL 496-1996, Underwriters Laboratories Inc. Standard for Safety - Edison Base Lampholders UL 817-2001, Underwriters Laboratories Inc. Standard for Safety - Cord Sets and Power Supply Cords UL 1598-2000, Underwriters Laboratories Inc. Standard for Safety - Luminaires





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NEMA-C78.21-2003 (PAR-R Shape Standards).pdf

Documents

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