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Molded Case Circuit Breakers

Molded Case Circuit Breakers have multiple frame sizes to accommodate your required current ratings and breaking capabilities. These breakers provide protection of circuits against overload, short circuit, and ground fault. They can be combined with our NEMA and IEC motor starters, overload relays, and contactors.
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140G Molded Case Circuit Breakers

Bulletin 140G Molded Case Circuit Breakers have nine different frame sizes with a range of 10...3000 A to accommodate your required current ratings and breaking capacities. With a wide range of operators and accessories, these circuit breakers provide the protection of circuits against overload, short circuit, and ground fault.

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140U Molded Case Circuit Breakers

Our Bulletin 140U-D Molded Case Circuit Breakers are UL489 Listed for global applications. These circuit breakers, rated from 0.5...30 A, are current limiting and provide fixed short circuit and overcurrent protection. They offer high interrupting ratings for 2- and 3-pole devices.

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