UL 489-2013 UL Standard for Safety Molded-Case Circuit Breakers Molded-Case Switches and Circuit-Breaker Enclosures (Twelfth Edition Reprint with Revisions Through and Including Ma.pdf
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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 489 Molded-Case Circuit Breakers, Molded-Case Switches and Circuit-Breaker EnclosuresUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM U
2、LUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Molded-Case Circuit Breakers, Molded-Case Switches and Circuit-Breaker Enclosures, UL 489 Twelfth Edition, Dated January 15, 2013 SUMMARY OF TOPICS This revision of
3、ANSI/UL 489 incorporates the following: 1. Removal of Parts for Accessory Installation 2. Optional Marking for Adjustable Trip Circuit Breakers with Ground Fault Element 3. Correction to Testing of 3-Pole Breakers for Use in Single Phase Circuits 4. Clarication of Overvoltage Test Method - Undervolt
4、age Trip Release 5. Addition of Requirements for Molded-Case Switches to Supplement SB 6. Addition of Requirements for Molded-Case Switches to Supplement SA 7. Clarication of Lock-Off and Lock-On Devices 8. Revisions for Table 6.1.6.1.2 9. Addition of Requirements for Class 2 Spacings 10. Addition o
5、f EMC Requirements in Supplements SF and SG 11. Addition of Requirements for Molded-Case Switches to Supplement SC 12. Clarication of the Interrupting Test of the High Available Fault Current Test Sequence 13. Clarication of Test Procedure for Series-Connected Circuit Breakers Text that has been cha
6、nged in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated June 28, 2013 and November 15, 2013. All rights reserved. No part of this publicati
7、on may be reproduced, stored in a retrieval 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 limit
8、ed to, the implied warranties of merchantability or tness for any purpose. MARCH 7, 2014 UL 489 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL In no event will UL be liable for any special, incidental, consequential, indirect or similar
9、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 authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever ex
10、ceed 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, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) re
11、sulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective
12、 dates as indicated in the preface. The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. The following table lists the future effective dates with the corresponding reference
13、. Future Effective Date Reference January 15, 2017 9.1.1.22, 18.1.13, SD4.1, SD4.2, SD4.3, and Figure 7.1.7.1 March 7, 2020 1.7, 7.1.1.22, Supplement SF, and Supplement SG MARCH 7, 2014 UL 489 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM
14、UL Association of Standardization and Certication NMX-J-266-ANCE-2013 Fourth Edition CSA Group CSA C22.2 No. 5-13 Third Edition Underwriters Laboratories Inc. UL 489 Twelfth Edition Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures January 15, 2013 (Title Page Reprin
15、ted: March 7, 2014) ANSI/UL 489-2014UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the Association of Standardization and Certication (ANCE), the Canadian Standards Association (o
16、perating as CSA Group), and Underwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may be submitted to ANCE, CSA Group, or UL at any time. Revisions to this standard will be made only after processing according to the standards development procedures of
17、ANCE, CSA Group, and UL. CSA Group and UL will issue revisions to this standard by means of a new edition or revised or additional pages bearing their date of issue. ANCE will incorporate the same revisions into a new edition of the standard bearing the same date of issue as the CSA Group and UL pag
18、es. Copyright 2013 ANCE Rights reserved in favor of ANCE. ISBN 978-1-77139-208-2 2013 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher. This Standard is subject to periodic review, and suggestions for it
19、s improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquirescsagroup.org and include Proposal for change in the subject line: Standard designation (number); relevant clause, table, and/or gure number; wording of the p
20、roposed change; and rationale for the change. To purchase CSA Group Standards and related publications, visit CSA Groups Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044. Copyright 2014 Underwriters Laboratories Inc. ULs Standards for Safety are copyrighted by UL. Neither
21、 a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. This ANSI/UL Standard for Safety consists of the Twelfth Edition. The most recent d
22、esignation of ANSI/UL 489 as an American National Standard (ANSI) occurred on March 7, 2014. ANSI approval for a standard does not include the cover page, transmittal pages, title page (front and back), preface, or superseded requirements. The Department of Defense (DoD) has adopted UL 489 on Januar
23、y 18, 1985. The publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption. NEMA (National Electrical Manufacturers Association) has adopted UL 489 (US Requirements) on August 11, 1999 as NEMA Standard AB1. The publication of revised pages or a new edition of
24、 this Standard will not invalidate the NEMA adoption. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. To purchase UL St
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