IEEE C37.27-2015 IEEE Guide for Low-Voltage AC (635 V and below) Power Circuit Breakers Applied with Separately-Mounted Current-Limiting Fuses

IEEE C37.27-2015 Руководство IEEE для низкого напряжения переменного тока (635 В и ниже) Питание Выключатели Applied отдельно монтируемые токоограничивающие предохранители

This guide applies to unfused low-voltage ac power circuit breakers of the 635 V maximum voltage class with separately-mounted current-limiting fuses for use on ac circuits with available short-circuit currents of 200 000 A (rms symmetrical) or less. Low-voltage ac fused power circuit breakers and combinations of fuses and molded-case circuit breakers are not covered by this guide. In this guide, the term circuit breaker means unfused low-voltage ac power circuit breaker.