1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1066 Low-Voltage AC and DC Power Circuit Breakers Used in EnclosuresUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED M
2、ATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Low-Voltage AC and DC Power Circuit Breakers Used in Enclosures, UL 1066 Fourth Edition, Dated April 13, 2012 Summary of Topics This revision of ANSI/UL 1066 is being issued to inclu
3、de four-pole circuit breakers in the scope of the Standard. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective da
4、te note indicating the date of publication or the date on which the changed requirement becomes effective. The revised requirements are substantially in accordance with Proposal(s) on this subject dated March 29, 2013. All rights reserved. No part of this publication may be reproduced, stored in a r
5、etrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of me
6、rchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an a
7、uthorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, a
8、nd hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard
9、are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located
10、after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. The following table lists the future effective dates with the corresponding reference. JULY 16, 2013 UL 1066 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Future
11、Effective Date Reference April 13, 2017 Entire Standard JULY 16, 2013 UL 1066 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 13, 2012 (Title Page Reprinted: July 16, 2013) 1 UL 1066 Standard for Low-Voltage AC and DC Power Circuit
12、Breakers Used in Enclosures First Edition January, 1985 Second Edition March, 1993 Third Edition May, 1997 Fourth Edition April 13, 2012 This ANSI/UL Standard for Safety consists of the Fourth edition including revisions through July 16, 2013. The most recent designation of ANSI/UL 1066 as an Americ
13、an National Standard (ANSI) occurred on July 16, 2013. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be s
14、ubmitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and right
15、s regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2013 UNDERWRITERS LABORATORIES INC. ANSI/UL 1066-2013UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 13, 2012 UL 1066 2 No Text on This PageUL CO
16、PYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .7 2 General 8 3 Components 9 4 Units of Measurement .9 5 Undated References 9 CONSTRUCTION 6 General .10 7 Corrosion Protection .10 8 Insulating Materials 10 9 Current
17、-Carrying Parts 11 10 Terminations .11 11 Operating Mechanism .11 12 Grounding .11 13 Trip Devices .12 14 Interlocks 12 15 Control Circuit Wiring 12 16 Control Circuit Field Wiring Connections .12 PERFORMANCE 17 General 13 18 Interlock Verication Tests .14 19 Dielectric Voltage-Withstand Tests 14 20
18、 Grounding Resistance Tests .14 21 Trip Device Calibration Tests .15 RATINGS 22 General 15 MARKINGS 23 General 15 SUPPLEMENT SA - LOW-VOLTAGE AC POWER CIRCUIT BREAKERS (NAVAL USE) INTRODUCTION SA1 Scope SA1 APRIL 13, 2012 UL 1066 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DI
19、STRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE SA2 Endurance Test .SA1 SA3 Continuous Current Test SA1 SA4 Calibration Test .SA2 SA5 Inclined Operations SA2 SA6 Vibration Test .SA2 SA6.1 General SA2 SA6.2 Resonance frequency test SA3 SA6.3 Variable frequency test SA3 SA7 Calibration Test .SA4 MAR
20、KINGS SA8 General SA4 SUPPLEMENT SB - CLASSIFIED TRIP DEVICES FOR USE WITH LOW-VOLTAGE AC POWER CIRCUIT BREAKERS INTRODUCTION SB1 Scope SB1 CONSTRUCTION SB2 General SB1 PERFORMANCE SB3 General SB1 MARKINGS SB4 General SB2 MANUFACTURING AND PRODUCTION-LINE TESTS SB5 General SB2 APPENDIX A Standards f
21、or ComponentsA1 APRIL 13, 2012 UL 1066 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 13, 2012 UL 1066 5 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL T
22、his page intentionally left blank. APRIL 13, 2012 UL 1066 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover low-voltage ac power circuit breakers as follows: a) Stationary-mounted or drawout-m
23、ounted types, b) 2-pole, 3-pole, and 4-pole constructions, c) Manually operated or power operated, and d) With or without electromechanical or solid-state type trip device. Revised 1.1 effective April 13, 2017 1.2 These requirements apply to drawout-mounted type low-voltage ac integrally fused power
24、 circuit breakers, consisting of low-voltage ac power circuit breakers with integral current limiters or fuses. 1.2 effective April 13, 2017 1.3 These requirements apply to low-voltage ac fuse draw-outs consisting of current limiters or fuses in a drawout assembly intended to be connected in series
25、with a low-voltage ac power circuit breaker to form a fused circuit breaker. 1.3 effective April 13, 2017 1.4 These requirements apply to general purpose type low-voltage dc power circuit breakers. 1.4 effective April 13, 2017 1.5 These requirements cover equipment intended for use in ordinary locat
26、ions in accordance with the National Electrical Code, ANSI/NFPA 70. 1.5 effective April 13, 2017 1.6 These requirements are intended to supplement and be used in conjunction with the: a) Standard for Low-Voltage AC Power Circuit Breakers Used In Enclosures, IEEE C37.13, b) Standard for Low-Voltage D
27、C Power Circuit Breakers Used In Enclosures, IEEE C37.14, c) Standard for Metal-Enclosed Low-Voltage Power Circuit-Breaker Switchgear, IEEE C37.20.1, d) Test Procedures for Switchgear Low-Voltage AC Power Circuit Breakers Used In Enclosures, ANSI C37.50, and e) Conformance Test Procedures for Switch
28、gear Metal-Enclosed Low-Voltage AC Power Circuit Breaker Switchgear Assemblies, ANSI C37.51. 1.6 effective April 13, 2017 JULY 16, 2013 UL 1066 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1.7 These requirements cover equipment rated 600
29、 V or less nominal, 635 V maximum ac and 300 V maximum dc. 1.7 effective April 13, 2017 1.8 This Standard does not apply to molded-case circuit breakers. 1.8 effective April 13, 2017 1.9 These circuit breakers are intended for installation in circuit breaker enclosures, switchboards (switchgear), pa
30、nelboards, and the like. Drawout-mounted devices are intended for use with specic adapters or receiving equipment. The acceptability of the combination of a circuit breaker with respect to any overall enclosure will be determined when the complete product is considered. 1.9 effective April 13, 2017
31、2 General Section 2 effective April 13, 2017 2.1 The requirements in this Standard shall be applied in addition to those contained in the following documents: a) Standard for Low-Voltage AC Power Circuit Breakers Used in Enclosures, IEEE C37.13, b) Standard for Low-Voltage DC Power Circuit Breakers
32、Used in Enclosures, IEEE C37.14, c) Test Procedures for Switchgear Low-Voltage AC Power Circuit Breakers Used in Enclosures, ANSI C37.50, and d) Conformance Test Procedures for Switchgear Metal-Enclosed Low-Voltage AC Power Circuit Breaker Switchgear Assemblies, ANSI C37.51. 2.2 The term circuit bre
33、aker as used in this Standard means low-voltage power circuit breaker, both the ac and dc types. When a requirement applies specically to either an ac or dc type, but not both, the term ac circuit breaker or dc circuit breaker is used. The term fused circuit breaker is used for an integrally fused p
34、ower circuit breaker or the combination of a fuse drawout and a circuit breaker. 2.3 Reference in this Standard is made by designation only to the following Standards. JULY 16, 2013 UL 1066 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL De
35、signation Title IEEE C37.13 Standard for Low-Voltage AC Power Circuit Breakers Used in Enclosures IEEE C37.14 Standard for Low-Voltage DC Power Circuit Breakers Used in Enclosures IEEE C37.16 Preferred Ratings, Related Requirements, and Application Recommendations for Low-Voltage AC and DC Power Cir
36、cuit Breakers ANSI C37.17 Trip Devices for AC and General Purpose DC Low-Voltage Power Circuit Breakers IEEE C37.20.1 Metal-Enclosed Low-Voltage Power Circuit-Breaker Switchgear ANSI C37.50 Test Procedures for Switchgear Low-Voltage AC Power Circuit Breakers Used in Enclosures ANSI C37.51 Conformanc
37、e Test Procedures for Switchgear Metal- Enclosed Low-Voltage AC Power Circuit Breaker Switchgear Assemblies ANSI/IEEE C37.100 Denitions for Power Switchgear JULY 16, 2013 UL 1066 8AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 16, 201
38、3 UL 1066 8B No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.4 The terms used in this Standard are as indicated in ANSI/IEEE C37.100. 2.5 ADAPTER Inasmuch as an adapter is designed to interface between a drawout-mounted
39、 device and the receiving devices such as individual enclosures, deadfront switchboards, and panelboards an adapter is to be investigated in conjunction with the intended drawout-mounted device. 3 Components Section 3 effective April 13, 2017 3.1 Except as indicated in 3.2, a component of a product
40、covered by this Standard shall comply with the requirements for that component. See Appendix A for a list of standards covering components generally used in the products covered by this Standard. 3.2 A component need not comply with a specic requirement that: a) Involves a feature or characteristic
41、not needed in the application of the component in the product covered by this Standard, or b) Is superseded by a requirement in this Standard. 3.3 A component shall be used in accordance with its rating established for the intended conditions of use. 3.4 Specic components are incomplete in construct
42、ion features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. 4 Units of Measurement Section 4 effective April 13, 2017 4.1 V
43、alues stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 5 Undated References Section 5 effective April 13, 2017 5.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as refer
44、ring to the latest edition of that code or standard. APRIL 13, 2012 UL 1066 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONSTRUCTION 6 General Section 6 effective April 13, 2017 6.1 These circuit breakers shall comply with IEEE C37.13 o
45、r IEEE C37.14 as appropriate, and with the requirements in this Standard. 6.2 A fuse draw-out shall include an open-fuse trip device that will cause tripping of the series circuit breaker, when one or more of the fuses or current limiters opens. 6.3 A fused circuit breaker shall include an open-fuse
46、 trip device that will cause tripping of the circuit breaker, when one or more of the fuses or current limiters opens. 6.4 A circuit breaker shall be so formed and assembled that it will have the strength and rigidity necessary to resist the ordinary abuses to which it may be subjected, including th
47、e tests specied in these requirements, without increasing the risk of re or electric shock due to partial or total collapse with a resulting loosening or displacement of parts or other serious defects. 7 Corrosion Protection Section 7 effective April 13, 2017 7.1 Iron and steel parts shall be protec
48、ted against corrosion by enameling, galvanizing, plating or an equivalent means. Exception: Thermal elements, magnet pole faces, and hardened and polished parts, such as latching surfaces where such protection is impractical, need not be protected. 8 Insulating Materials Section 8 effective April 13
49、, 2017 8.1 An insulating material is to be investigated to determine its acceptability for the application with consideration being given to its: a) Mechanical strength, b) Dielectric properties, c) Insulation resistance, d) Tracking resistance, e) Heat-resistant qualities, f) The degree to which it is enclosed or protected, and g) Any other features having a bearing on the risk of re and electric shock involved. All of these factors are to be considered with respect to thermal aging. A polyme
