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Description / Abstract:
This 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" is
considered to mean "enclosed dc power circuit
breaker."1
Purpose
The purpose of this document is to:
a) Establish minimum functional requirements
b) Establish preferred rating structure
c) Provide preferred ratings
d) Establish testing requirements
1 Notes in text, tables, and figures of a standard
are given for information only, and do not contain requirements
needed to implement the standard.