These requirements cover molded-case circuit breakers and molded-case switches rated greater than 250 V dc but no greater than 1500 V dc and intended for use with battery power supplies (BPS) which may be wired with multiple poles in series@ such as may be used in uninterruptible power supplies or for energy storage in renewable energy systems. These devices are intended for use in accordance with the National Electrical Code (NEC)@ ANSI/NFPA 70. A circuit breaker intended for use with battery power supplies shall comply with the applicable 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 do not cover circuit breakers rated 250 V dc or less.
SUBJECT 489F-2016由UL - UL 发布于 2016-01-12,并于 2016-01-19 实施。
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