Describes following enclosed low-voltage ac power circuit breakers: a) stationary or draw-out type of two-, three-, or four-pole construction, with one or more rated maximum voltages of 635 V (600 V for units incorporating fuses), 508 V, and 254 V for application on systems having nominal voltages of 600 V, 480 V, and 240 V; b) unfused or fused circuit breakers; c) manually or power operated; and d) with or without electromechanical or electronic trip devices. It also discusses service conditions, ratings, functional components, temperature limitations and classifications of insulating materials, insulation (dielectric) withstand voltage requirements, test procedures, and application.

Amendment 1 to IEEE C37.13 is available separately, see IEEE C37.13A. (06/2012)

IEEE C37.13:1990 (R1995)

IEEE C37.13:2015