The purpose of this document is to: a) Establish minimum functional requirements b) Establish preferred rating structure c) Provide preferred ratings d) Establish testing requirementsThis standard covers the following types, preferred ratings, and testing requirements of enclosed dc power circuit breakers: a)Stationary or drawout type of one- or two-pole functional construction b)Having rated maximum voltages of up to 3200 V c)Manually operated or power operated d)With or without overcurrent trip devices NOTE--In this standard, the use of the term circuit breaker shall be considered to mean "e;enclosed dc power circuit breaker.
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