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UL 489B
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UL 489B 1st Edition, March 7, 2016 UL Standard for Safety 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 Ref. No. 1 of Annex B.
These requirements are intended to be used in conjunction with the requirements in Ref. No. 2 of Annex B, except as modified or supplemented by this Standard.
These requirements do not cover molded-case circuit breakers or molded-case switches intended for use in battery circuits.
These requirements are intended to be used in conjunction with the requirements in Ref. No. 2 of Annex B, except as modified or supplemented by this Standard.
These requirements do not cover molded-case circuit breakers or molded-case switches intended for use in battery circuits.