M00050606
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CSA C22.2 NO. 248.5:00 (R2019) Low-Voltage Fuses - Part 5: Class G Fuses (Tri-national standard, with UL 248-5, second edition, and the first edition of NMX-J-009/248/5-2000-ANCE)
standard by CSA Group, 08/01/2000
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National Standard of Canada
(reaffirmed 2019)
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CAN/CSA-C22.2 No. 248.5-00
August 2005
Note: General Instructions for CSA Standards are now called Updates. Please contact CSA Information Products Sales or visit www.ShopCSA.ca for information about the CSA Standards Update Service.
Title: Low-Voltage Fuses — Part 5: Class G Fuses — originally published August 2000
Revisions issued: Update No. 2 — November 2004
If you are missing any updates, please contact CSA Information Products Sales or visit www.ShopCSA.ca.
The following revisions have been formally approved and are marked by a vertical line in the margin on the attached replacement pages:
Revised | Title page, copyright page, Contents, Preface, and Clauses 1 and 8.2.4 |
New | None |
Deleted | Foreword (ANCE) and Foreword (UL) |
CAN/CSA-C22.2 No. 248.5-00 originally consisted of 14 pages, each dated August 2000. It now consists of the following pages:
August 2000 | 10, 11, 13, and 14 |
November 2004 | Cover |
August 2005 | 1–9 and 12 |
Update your copy by inserting these revised pages.
Keep the pages you remove for reference.
National Association of Standardization and Certification of the Electrical Sector
NMX-J-009/248/5-2000-ANCE
First Edition
Canadian Standards Association
CAN/CSA-C22.2 No. 248.5-00
Second Edition
Underwriters Laboratories Inc.
UL 248-5
Second Edition
Low-Voltage Fuses – Part 5: Class G Fuses
August 1, 2000
(Title Page Reprinted: August 11, 2005)
ANSI/UL 248-5-2005
Commitment for Amendments
This Standard is issued jointly by the National Association of Standardization and Certification of the Electrical Sector (ANCE), CSA Internationals, and Underwriters Laboratories Incorporated (UL). Amendments to this Standard will be made only after processing according to the Standards writing procedures by ANCE, CSA, and UL.
Revisions of this Standard will be made by issuing revised or additional pages bearing their date of issue. A UL Standard is current only if it incorporates the most recently adopted revisions, all of which are itemized on the transmittal notice that accompanies the latest set of revised requirements.
Copyright © 2000,
2005 ANCE
Rights reserved in favor of ANCE
ISBN 1-55324-234-3
Copyright © 2000 Canadian Standards Association
All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.
ISBN 0-7629-0555-7
Copyright © 1996,
2005
Underwriters Laboratories Inc.
AUGUST 11, 2005 NMX-J-009/248/5-2000-ANCE CAN/CSA-C22.2 NO. 248.5-00 UL 248-5 3
CONTENTS
Preface 4
1 General 9
1.1 Scope 9
Classification 9
Characteristics 9
Voltage rating 9
Current rating 9
Interrupting rating 9
Peak let-through current and clearing I2t characteristics 10
Construction 10
7.1 Dimensions 10
Tests 12
Verification of temperature rise and current-carrying capacity 12
Verification of overload operation 12
Verification of operation at rated voltage 12
Verification of peak let-through current and clearing I2t characteristics 13
AUGUST 1, 2000 NMX-J-009/248/5-2000-ANCE CSA C22.2 NO. 248.5-00 UL 248-5 3
CONTENTS
Preface 4
Foreword (ANCE) 5
Foreword (CSA) 6
Foreword (UL) 8
1 General 9
1.1 Scope 9
Classification 9
Characteristics 9
Voltage rating 9
Current rating 9
Interrupting rating 9
Peak let-through current and clearing I2t characteristics 10
Construction 10
7.1 Dimensions 10
Tests 12
Verification of temperature rise and current-carrying capacity 12
Verification of overload operation 12
Verification of operation at rated voltage 12
Verification of peak let-through current and clearing I2t characteristics 13