These requirements cover molded-case circuit breakers and molded-case switches rated greater than 250 V dc 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. 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.