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UL 489B OUTLINE

4th Edition, September 10, 2014

Complete Document

UL Outline of Investigation for Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures for Use with Photovoltaic (PV) Systems

Includes all amendments and changes through Change/Amendment , September 10, 2014


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Product Details:

  • Revision: 4th Edition, September 10, 2014
  • Published Date: September 10, 2014
  • Status: Active, Most Current
  • Document Language: English
  • Published By: UL (UL)
  • Page Count: 20
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

These requirements cover molded-case circuit breakers, molded-case switches, and circuit-breaker enclosures rated up to 1500 V dc, intended for use with photovoltaic (PV) systems and Article 690 of the National Electrical Code, ANSI/NFPA-70. 

These requirements are intended to be used in conjunction with the requirements in the Standard for Molded-Case Circuit Breakers, Molded-Case Switches and Circuit-Breaker Enclosures, UL 489, hereafter referred to as UL 489, except as modified or supplemented by this Outline.