Molded Case Circuit Breakers Molded Case Switches And Circuit Breaker Enclosures

5 and the thirteenth edition of ul 489.
Molded case circuit breakers molded case switches and circuit breaker enclosures. M p and r frame molded case circuit breakers powerpact 800 a m frame powerpact 1200 a p frame. This is the harmonized ance csa group and ul standard for molded case circuit breakers molded case switches and circuit breaker enclosures. A molded case circuit breaker is defined as a circuit breaker that is assembled as an integral unit in a supportive and enclosed housing of insulating material basically a molded plastic case. Abb s formula molded case circuit breaker line offers simplicity and quality in some of the smallest dimensions available.
This harmonized standard has been jointly revised on april 22 2019. This edition of nmx j 266 ance supersedes the previous edition published on january 15 2013. 5 and the thirteenth edition of ul 489. Molded case circuit breakers are electrically operated switches that provide electrical circuit protection against both overloads and short circuits in low voltage distribution systems.
It is the fifth edition of nmx j 266 ance the fourth edition of csa c22 2 no. This is the harmonized ance csa group and ul standard for molded case circuit breakers molded case switches and circuit breaker enclosures.