Association News

NEMA White Paper explores molded case circuit breaker testing.

Press Release Summary:

Nov 27, 2013 - NEMA's published white paper, NEMA ADP 2-2013 Molded Case Circuit Breaker Systems Testing with Conductors, discusses necessity of testing circuit breakers with wire to demonstrate protection. As defined in UL 489, standard tests include overload and thermal tests, endurance followed by low level short circuit interrupting tests, and standard low level short circuit interrupting tests.

National Electrical Manufacturers Association (NEMA) - Rosslyn, VA

Original Press Release

NEMA Publishes White Paper: NEMA ADP 2-2013 Molded Case Circuit Breaker Systems Testing with Conductors

Press release date: Nov 19, 2013

ROSSLYN, Va.—The National Electrical Manufacturers Association (NEMA) published a white paper, NEMA ADP 2-2013 Molded Case Circuit Breaker Systems Testing with Conductors.

Molded case circuit breakers are designed to protect rated conductors and in particular, insulated wire. For this reason, it is necessary to test circuit break­ers with wire to demonstrate that protection. NEMA ADP 2 discusses the necessity to test circuit breakers with wire to demonstrate that protection. The standard tests (as defined in UL 489)  include overload and thermal tests, endurance followed by low level short circuit interrupting tests, and standard low level short circuit interrupting tests.

NEMA ADP 2-2013 Molded Case Circuit Breaker Systems Testing with Conductors is available at no charge.

NEMA is the association of electrical equipment and medical imaging manufacturers, founded in 1926 and headquartered in Rosslyn, Virginia. Its 400-plus member companies manufacture a diverse set of products including power transmission and distribution equipment, lighting systems, factory automation and control systems, and medical diagnostic imaging systems. Total U.S. shipments for electroindustry products exceed $100 billion annually.

National Electrical Manufacturers Association
Visit our website at www.nema.org