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UL 489B OUTLINE
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UL 489B OUTLINE 4th Edition, September 10, 2014 UL Outline of Investigation for Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures for Use with Photovoltaic (PV) Systems
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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.
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.