Motor Protection Circuit Breakers

Our Motor Protection Circuit Breakers provide both short circuit and overload protection for individual motor loads and are available for a wide range of motor sizes and installation types. They can be combined with our NEMA and IEC contactors or solid-state motor controllers.

Bulletin 140M Motor Protection Circuit Breakers

140M Motor Protection Circuit Breakers

Our Bulletin 140M Motor Protection Circuit Breakers can provide a disconnecting means for motor branch circuit, branch-circuit and short-circuit magnetic protection, overload thermal protection, and manual switching. These devices are rated from 0.1...45 A.


Bulletin 140MG Motor Protection Circuit Breakers

140MG Motor Protection Circuit Breakers

Our Bulletin 140MG Motor Protection Circuit Breakers can provide a disconnecting means for motor branch circuit, branch-circuit and short-circuit magnetic protection, overload thermal protection, and manual switching. We offer devices rated from 25...150 A to meet your particular needs. Our factory-installed internal accessories make installation and wiring easy. In North America, electrical codes require that an individual Motor Branch Circuit be protected by a UL/CSA Listed Fuse, Circuit Breaker, or Self-protected Combination Motor Controller.


Bulletin 140MP Motor Protection Circuit Breakers

140MP Motor Protection Circuit Breakers

Our Bulletin 140MP Motor Protection Circuit Breakers (MPCBs) provide magnetic short circuit and thermal overload protection up to 32 A, with an interrupting rating @400V of up to 100kA. They are tested in combination with Allen-Bradley Bulletin 100-C and 100-K contactors to create two component motor starters.