UL 943-2018 Ground-Fault Circuit-Interrupters.pdf

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UL943 STANDARD FOR SAFETY Ground-Fault Circuit-Interrupters FEBRUARY 23 ,2018-UL 943 UL Standard for Safety for Ground-Fault Circuit-Interrupters ,UL 943 Fifth Edition ,Dated May 17 ,2016 Summary of Topics This revision of the Standard for Safety for Ground-Fault Circuit-Interrupters ,ANSI /UL943 includes the following changes in requirements : Expansion of Auto-Monitoring and End of Life Requirements to All Types of GFCIs Addition Requirements for Programmable Components Improving the Auto-Monitoring Function of Permanently Connected Ground-Fault Circuit Interrupters The new /revisedrequirements are substantially in accordance with Proposal (s)onthis subject dated August 25 ,2017 . Text that has been changed in any manner or impacted by UL's electronic publishing system is marked with a vertical line in the margin . All rights reserved .No part of this publication may be reproduced ,stored in a retrieval system ,or transmitted any form by any means ,electronic ,mechanical photocopying ,recording ,or otherwise without prior permission of UL . UL provides this Standard " asis "without warranty of any kind ,either expressed or implied ,including but not limited to ,th...

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