Circuit Breakers

A circuit breaker will interrupt the flow of current in an electrical circuit, safeguarding surrounding electrical components and wiring by preventing circuit overloads and short circuits.

a.k.a. MCB, MCCB, molded case breaker, supplementary protection, UL1077, UL489, UL508, MMP, manual motor protector

 

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  • M1H100T3L

    Noark

    M1H100T3L

    Molded Case Circuit Breaker, MCCB, UL489, M1H, 150 A Frame Size, 150kA @ 240VAC/100kA @ 480VAC, 100 Amp, Thermal Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1H Series

  • M1H90T3L

    Noark

    M1H90T3L

    Molded Case Circuit Breaker, MCCB, UL489, M1H, 150 A Frame Size, 150kA @ 240VAC/100kA @ 480VAC, 90 Amp, Thermal Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1H Series

  • M1H80T3L

    Noark

    M1H80T3L

    Molded Case Circuit Breaker, MCCB, UL489, M1H, 150 A Frame Size, 150kA @ 240VAC/100kA @ 480VAC, 80 Amp, Thermal Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1H Series

  • M1H70T3L

    Noark

    M1H70T3L

    Molded Case Circuit Breaker, MCCB, UL489, M1H, 150 A Frame Size, 150kA @ 240VAC/100kA @ 480VAC, 70 Amp, Thermal Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1H Series

  • M1H60T3L

    Noark

    M1H60T3L

    Molded Case Circuit Breaker, MCCB, UL489, M1H, 150 A Frame Size, 150kA @ 240VAC/100kA @ 480VAC, 60 Amp, Thermal Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1H Series

  • M1H50T3L

    Noark

    M1H50T3L

    Molded Case Circuit Breaker, MCCB, UL489, M1H, 150 A Frame Size, 150kA @ 240VAC/100kA @ 480VAC, 50 Amp, Thermal Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1H Series

  • M1H45T3L

    Noark

    M1H45T3L

    Molded Case Circuit Breaker, MCCB, UL489, M1H, 150 A Frame Size, 150kA @ 240VAC/100kA @ 480VAC, 45 Amp, Thermal Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1H Series

  • Available Now!
    M1H40T3L
    Available Now!

    Noark

    M1H40T3L

    Molded Case Circuit Breaker, MCCB, UL489, M1H, 150 A Frame Size, 150kA @ 240VAC/100kA @ 480VAC, 40 Amp, Thermal Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1H Series

  • M1H35T3L

    Noark

    M1H35T3L

    Molded Case Circuit Breaker, MCCB, UL489, M1H, 150 A Frame Size, 150kA @ 240VAC/100kA @ 480VAC, 35 Amp, Thermal Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1H Series

  • M1H30T3L

    Noark

    M1H30T3L

    Molded Case Circuit Breaker, MCCB, UL489, M1H, 150 A Frame Size, 150kA @ 240VAC/100kA @ 480VAC, 30 Amp, Thermal Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1H Series

  • M1H25T3L

    Noark

    M1H25T3L

    Molded Case Circuit Breaker, MCCB, UL489, M1H, 150 A Frame Size, 150kA @ 240VAC/100kA @ 480VAC, 25 Amp, Thermal Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1H Series

  • M1H20T3L

    Noark

    M1H20T3L

    Molded Case Circuit Breaker, MCCB, UL489, M1H, 150 A Frame Size, 150kA @ 240VAC/100kA @ 480VAC, 20 Amp, Thermal Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1H Series

A circuit breaker will interrupt the flow of current in an electrical circuit, safeguarding surrounding electrical components and wiring by preventing circuit overloads and short circuits.

a.k.a. MCB, MCCB, molded case breaker, supplementary protection, UL1077, UL489, UL508, MMP, manual motor protector