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Standard 489, Edition 13

Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures

UL Red Line
Standard 489, Edition 13 Edition Date: April 23, 2019
Summary of Topics s0489_13_sum.html


This revision of ANSI/UL 489 dated April 22, 2019, incorporates the following:

Exception for 6" Minimum Length of Field Wiring Conductor (Lead)

Revision to the Requirements for Draw-out Circuit Breakers

Revisions to the Calibration Requirements for Supplement SB

Revision to Table - Available current in test circuits

Revised Requirements for Accessory Terminal Leads Wire Size

Addition of Requirements from UL 489G into UL 489

Editorial corrections

Back to Standard 489, Edition 13

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