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Standard 634, Edition 9

Standard for Connectors and Switches for Use with Burglar-Alarm Systems

UL CSDS Proposal
Standard 634, Edition 9 Edition Date: July 11, 2013
Summary of Topics b0634_9_20130711_sum.html

Subject 634

Bulletin Dated: July 11, 2013

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Connectors and Switches for Use with Burglar-Alarm Systems, UL 634, are being proposed for preliminary review and comment only:

1. For Preliminary Review Only: Clarification that all switches must meet the minimum operating gap of 1/8 inch (3.2 mm) in addition to the specific requirements of Sections 49 - 65 for Level 1 and Level 2 switches

Back to Standard 634, Edition 9

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