1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 248-11 Low-Voltage Fuses - Part 11: Plug FusesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FO
2、R FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Low-Voltage Fuses - Part 11: Plug Fuses, UL 248-11 Third Edition, Dated May 13, 2011 Summary of Topics This revision of ANSI/UL 24811 is being issued to reaffirm approval as an American National Standard. No
3、 changes in requirements are involved. As noted in the Commitment for Amendments statement located on the back side of the title page, UL, CSA, and ANCE are committed to updating this harmonized standard jointly. However, the revision pages dated (June 26, 2015) will not be jointly issued by UL, CSA
4、, and ANCE as these revision pages only address UL 24811 ANSI approval dates. The new requirements are substantially in accordance with Proposal(s) on this subject dated June 26, 2015. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in
5、 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 merchantability or tness for any pur
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7、en 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, and hold UL harmless from and again
8、st 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 are now in effect, except for thos
9、e paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated on this transmittal notice. 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 SUPER
10、SEDED REQUIREMENTS notice. AUGUST 18, 2015 UL 248-11 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 18, 2015 UL 248-11 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT
11、 PERMISSION FROM UL Association of Standardization and Certication NMX-J-009/248/11-ANCE Second Edition Canadian Standards Association CSA C22.2 No. 248.11-11 Third Edition Underwriters Laboratories Inc. UL 248-11 Third Edition Low-Voltage Fuses Part 11: Plug Fuses May 13, 2011 (Title Page Reprinted
12、: August 18, 2015) ANSI/UL 248-11-2011 (R2015)UL 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 Asso
13、ciation (operating 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 anytime. Revisions to this standard will be made only after processing according to the standards development pro
14、cedures of 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
15、 and UL pages. Copyright 2011 Rights reserved in favor of ANCE. ISBN 978-1-55491-641-2 2011 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher. CSA Standards are subject to periodic review, and suggestions
16、 for their improvement will be referred to the appropriate committee. To submit a proposal for change to CSA Standards, please send the following information to inquirescsa.ca and include Proposal for change in the subject line: Standard designation (number); relevant clause, table, and/or gure numb
17、er; wording of the proposed change; and rationale for the change. To purchase CSA Standards and related publications, visit CSAs Online Store at www.ShopCSA.ca or call toll-free 1-800-463-6727 or 416-747-4044. Copyright 2015 Underwriters Laboratories Inc. ULs Standards for Safety are copyrighted by
18、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 rights regarding those Standards shall remain the sole and exclusive property of UL. This ANSI/UL Standard for Safety consists of the Third Edition including
19、 revisions through August 18, 2015. The most recent designation of ANSI/UL 248-11 as an American National Standard (ANSI) occurred on August 18, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface. Comments or proposals f
20、or 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 Standards, visit Comm 2000 at http:/m- or call toll-free 1-888-853-3503.UL COPY
21、RIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface .4 1 General 6 1.1 Scope .6 4 Classication .6 5 Characteristics 6 5.2 Voltage rating 6 5.3 Current rating 7 5.5 Interrupting rating .7 6 Marking 7 6.1 Marking of fuses 7 7 Constructio
22、n 7 7.1 Dimensions 7 7.3 Connections 10 8 Tests .15 8.1 Fuses for operation test 15 8.2 Verication of temperature rise and current-carrying capacity .15 8.3 Verication of overload operation 15 8.4 Verication of operation at rated voltage .16 9 Special tests 16 9.1 General 16 9.2 Verication of low me
23、lting point P ( D for time delay) characteristic .16 9.3 Verication of go/no go gauging requirements for Edison-base and Type C plug fuses .17 9.4 Verication of adapter requirements for Type S plug fuses .17 MAY 13, 2011 NMX-J-009/248/11-ANCE CSA C22.2 NO. 248.11-11 UL 248-11 3UL COPYRIGHTED MATERIA
24、L NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface This is the harmonized ANCE, CSA, and UL standard for Low-Voltage Fuses Part 11: Plug Fuses. It is the second edition of NMX-J-009/248/11-ANCE, the third edition of CSA C22.2 No. 248.11-11, and the third edi
25、tion of UL 248-11. This edition of NMX-J-009-248/11-ANCE cancels the previous edition published in 2000. This edition of CSA C22.2 No. 248.11-11 supersedes the previous edition published in 2000. This harmonized standard was prepared by the Association of Standardization and Certication (ANCE), the
26、Canadian Standards Association (CSA), and Underwriters Laboratories Inc., (UL). This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard. The present Mexican Standard was developed by the CT 32 from the Comite de Normalizacion de la Asociacion de
27、 Normalizacion y Certicacion, A.C., CONANCE, with the collaboration of the fuse manufacturers and users. This standard was reviewed by the CSA Subcommittee on Fuses and Fuseholders, under the jurisdiction of the CSA Technical Committee on Industrial Products and the CSA Strategic Steering Committee
28、on Requirements for Electrical Safety, and has been formally approved by the CSA Technical Committee. This standard has been approved by the American National Standards Institute (ANSI) as an American National Standard. A UL standard is current only if it incorporates the most recently adopted revis
29、ions, all of which are itemized on the transmittal notice that accompanies the latest set of revised requirements. Where reference is made to a specic number of samples to be tested, the specied number is to be considered a minimum quantity. Note: Although the intended primary application of this st
30、andard is stated in its scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose. Level of Harmonization This standard is published as an identical standard for ANCE, CSA, and UL. An identical standard is a s
31、tandard that is exactly the same in technical content except for national differences resulting from conicts in codes and governmental regulations. Presentation is word for word except for editorial changes. Interpretations The interpretation by the standards development organization of an identical
32、 or equivalent standard is based on the literal text to determine compliance with the standard in accordance with the procedural rules of the standards development organization. If more than one interpretation of the literal text has been identied, a revision is to be proposed as soon as possible to
33、 each of the standards development organizations to more accurately reect the intent. MAY 13, 2011 NMX-J-009/248/11-ANCE CSA C22.2 NO. 248.11-11 UL 248-11 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL ANCE Effective Date The effective dat
34、e for ANCE will be announced through the Diario Ocial de la Federacin (Official Gazette) and is indicated on the cover page. CSA Effective Date The effective date for CSA International will be announced through CSA Informs or a CSA certication notice. UL Effective Date As of May 13, 2011 all product
35、s Listed or Recognized by UL must comply with the requirements in this standard. A UL effective date is one established by Underwriters Laboratories Inc. and is not part of the ANSI approved standard. MAY 13, 2011 NMX-J-009/248/11-ANCE CSA C22.2 NO. 248.11-11 UL 248-11 5UL COPYRIGHTED MATERIAL NOT A
36、UTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Low-Voltage Fuses Part 11: plug fuses 1 General NOTE This Part is intended to be read together with the Standard for Low-Voltage Fuses Part 1: General Requirements, hereafter referred to as Part 1. The numbering of the Cla
37、uses in this Part correspond to like numbered Clauses in Part 1. The requirements of Part 1 apply unless modied by this Part. For Clauses not shown below, refer to the Standard for Low-Voltage Fuses Part 1: General Requirements, NMX-J-009/248/1-ANCE CAN/CSA C22.2 No. 248.1 UL 248-1. 1.1 Scope This P
38、art applies to plug fuses rated 30 A or less and 125 V ac (127 V ac for Mexico). DC ratings are optional. 4 Classication Plug fuses are non-renewable and not current limiting, with an interrupting rating of 10,000 A. Plug fuses are divided into 3 sub-classications. Time-delay ratings are optional. E
39、dison-base Plug fuses which are interchangeable for all current ratings. No rejection feature is used. See Figure A. Type C Plug fuses which have a non-interchangeable feature for 3 current ranges (0 15, 16 20, and 21 30 A). See Figure A. Type S Plug fuses which have a non-interchangeable feature fo
40、r 11 current ranges (0.1 1, 1.125 - 1.25; 1.4 1.6; 1.8 2.0; 2.25 2.5; 2.8 3.2; 3.5 4; 4.5 5; 5.6 6.25; 7 15; and 16 30 A). See Figure B. In Canada only, Type C and Type S fuses may be used, and for all ratings 15 30 A, these fuses shall have low melting point P ( D for time delay) characteristics. 5
41、 Characteristics 5.2 Voltage rating For AC, the rating shall be 125 V ac or, for fuses intended for installation in Mexico, the rating shall be 127 V ac. The DC voltage rating may be different from the AC rating. MAY 13, 2011 NMX-J-009/248/11-ANCE CSA C22.2 NO. 248.11-11 UL 248-11 6UL COPYRIGHTED MA
42、TERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.3 Current rating 30 A and less. 5.5 Interrupting rating For AC 10,000 A For DC 10,000 A 6 Marking 6.1 Marking of fuses c) voltage rating is optional; d) interrupting rating is optional; e) fuse classication i
43、s optional; and g) a plug fuse shall not be marked Current Limiting. In addition to the requirements in Part 1: Fuses for United States shall have a prominent hexagonal feature when rated 15 A or less. Fuses for Canada shall have a low melting point characteristic and shall be marked with a P or wit
44、h a D for time delay. 7 Construction 7.1 Dimensions Fuse dimensions are shown in Figures A and B. This is generated text for gtxt. MAY 13, 2011 NMX-J-009/248/11-ANCE CSA C22.2 NO. 248.11-11 UL 248-11 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION
45、FROM UL Figure A Dimensions of Edison-base and Type C plug fuses in mm (in) mm in 28.6 30.9 1.12 1.22 34.9 1.37 20.6 0.81 19.1 0.75 6.3 0.25 1.91 0.075 Note: There shall not be less than three full threads (seven threads per 25.4 mm (1 inch) in the screwshell. Edison-base may include a tapered congu
46、ration for dimension A. Type Rating Diameter A Current I n ,A Edison-base 0 30 19.1 (0.75) Max. 0 15 10.67 a C 16 20 12.45 b 21 30 14.22 b a Tolerance: +0.127 mm (+0.0050 in), -1.143 mm (-0.045 in) b Tolerance: +0.127 mm (+0.0050 in), -0.127 mm (-0.0050 in) c Tolerance: +1.143 mm (+0.045 in), -0.127
47、 mm (-0.0050 in) MAY 13, 2011 NMX-J-009/248/11-ANCE CSA C22.2 NO. 248.11-11 UL 248-11 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This is generated text for gtxt. Figure B Dimensions of Type S plug fuses in mm (in) English Conversions f
48、or Screw Shell Dimensions Shown mm In 31.8 1.25 29.1 1.14 3.55 0.140 0.78 0.031 21.9 0.86 17.4 18.3 0.68 0.72 8.0 0.31 12.7 0.50 17.4 17.1 0.68 0.67 18.8 18.5 0.74 0.73 0.774 0.724 0.0347 0.0285 0.89 0.83 0.0350 0.0327 0.749 0.699 0.0295 0.0275 0.876 0.826 0.0384 0.0325 1.05 0.999 0.0413 0.0393 0.823 0.793 0.0324 0.0312 0.825 0.775 0.0325 0.0305 0.927 0.876 0.0365 0.0345 1.04 0.990 0.0409 0.0390 0.823 0.772 0.0324 0.0304 1.232 1.181 0.0485 0.0465 1.35 1.29 0.0531 0.0508 0.769 0.820 0.0303 0.0323 MAY 13, 2011 NMX-J-009/248/11-ANCE CSA C22.2 NO. 248.11-11 UL 248-11 9UL COPYRIGHTED M
