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NEMA ABP 6 - What is the Purpose of a Molded Case Circuit Breaker?
January 1, 2015 - NEMA

Foreword This is an update to the NEMA white paper originally published in 1994. To ensure that a meaningful publication was being developed, draft copies were sent to a number of groups within NEMA having an interest in this topic. Their resulting comments and suggestions provided...

NEMA ABP 3 - Molded Case Circuit Breaker Systems Testing with Conductors
January 1, 2013 - NEMA

FOREWORD This is an update to the NEMA white paper originally published in 1994. To ensure that a meaningful publication was being developed, draft copies were sent to a number of groups within NEMA having an interest in this topic. Their resulting comments and suggestions provided...

NEMA AB 4 - Guidelines for Inspection and Preventive Maintenance of Molded Case Circuit Breakers Used in Commercial and Industrial Applications
January 1, 2017 - NEMA

NEMA AB 4 sets forth, for use by qualified personnel,1 a number of basic procedures that may be used for the inspection and preventive maintenance of molded case circuit breakers used in industrial and commercial applications rated up to and including 1000 V 50/60 Hz AC or...

NEMA ABP 4 - Taking the Guesswork out of Selecting and Maintaining Molded Case Circuit Breakers
January 1, 2013 - NEMA

Foreword This is an update to the NEMA white paper originally published in 1998. To ensure that a meaningful publication was being developed, draft copies were sent to a number of groups within NEMA having an interest in this topic. Their resulting comments and suggestions provided...

NEMA ABP 11 - Compatibility between Smoke Alarms and Arc-Fault Circuit Interrupters
January 1, 2016 - NEMA

Foreword This is an update to a NEMA white paper originally published in 2005. To ensure that a meaningful publication was being developed, draft copies were sent to a number of groups within NEMA having an interest in this topic. Their resulting comments and suggestions provided...

NEMA ABP 9 - Hazards of Working on Energized Electrical Equipment
January 1, 2015 - NEMA

Foreword This is an update to "Hazards of Working Electrical Equipment Hot," a NEMA white paper originally published in 1994. To ensure that a meaningful publication was being developed, draft copies were sent to a number of groups within NEMA having an interest in this topic. Their...

NEMA ABP 5 - Series Ratings
January 1, 2015 - NEMA

Foreword This is an update to a NEMA white paper originally published in 1994. To ensure that a meaningful publication was being developed, draft copies were sent to a number of groups within NEMA having an interest in this topic. Their resulting comments and suggestions provided...

NEMA KS 1 - Heavy Duty Enclosed and Dead-Front Switches (600 Volts Maximum)
January 1, 2013 - NEMA

This standards publication covers heavy duty enclosed and dead-front switches that are: a. Rated at not more than 600 volts and 4000 amperes with or without a horsepower rating. The dc ratings shall be up to and including 600 volts, 1200 amperes. b. With or without provision for fuses c. With...

ANSI C37.51 - Switchgear — Metal-Enclosed Low Voltage AC Power Circuit Breaker Switchgear Assemblies — Conformance Test Procedures
January 1, 2018 - NEMA

This Standard is a conformance testing Standard optionally applicable to all metal-enclosed low-voltage ac power circuit breaker switchgear assemblies designed, tested, and manufactured in accordance with IEEE Std C37.20.1, Metal-Enclosed Low-Voltage AC Power Circuit...

IEEE C37.27 - Guide for Low-Voltage AC (635 V and below) Power Circuit Breakers Applied with Separately- Mounted Current-Limiting Fuses
December 5, 2015 - IEEE

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...

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