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IEEE C37.27-2015

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

standard by IEEE , 03/17/2016

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Full Description

Scope

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.

Purpose

This guide sets forth recommendations believed essential for the selection of current-limiting fuses (see NEMA FU-1 and UL 248-1) for use in combination with low-voltage ac power circuit breakers, rated in accordance with IEEE Std C37.13™ and applied in metal-enclosed low-voltage power circuit breaker switchgear in accordance with IEEE Std C37.20.1. NOTE--The combination of a circuit breaker and separately mounted fuses is limited to 600 V based on fuse maximum voltage ratings.

Abstract

Revision Standard - Active. Application recommendations to assist in selection of separately mounted current-limiting fuses to be installed in series with low-voltage ac power circuit breakers are provided in this guide.
 

Product Details

Published:
03/17/2016
ISBN(s):
9781504420907, 9781504420914, 9781504420891, 9781504407854, 9781504407847
Number of Pages:
20
File Size:
1 file , 1.4 MB
Redline File Size:
2 files , 2.6 MB
Product Code(s):
STDRL20853, STD20853, STDPD20853, STDPDRL20853, STDPL20853
Note:
This product is unavailable in Russia, Ukraine, Belarus
 

Document History

  1. IEEE C37.27-2015

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

    • Most Recent

  2. IEEE C37.27-2008


    IEEE Application Guide for Low-Voltage AC Power Circuit Breakers Applied with Separately-Mounted Current-Limiting Fuses

    • Historical Version

  3. IEEE C37.27-1987


    IEEE Standard Application Guide for Low-Voltage AC Nonintegrally Fused Power Circuit Breakers (Using Separately Mounted Current-Limiting Fuses)

    • Historical Version