Molded Case Breakers

1185 products

    Shop our wide selection molded case (MCCB) circuit breakers. 
    1185 products
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    QN2175RH - Siemens - Molded Case Circuit Breaker
    QN2175RH - Siemens - Molded Case Circuit Breaker
    Plug In - 175 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    QN2175 - Siemens - Molded Case Circuit Breaker
    QN2175 - Siemens - Molded Case Circuit Breaker
    Plug In - 175 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    QN2150H - Siemens - Molded Case Circuit Breaker
    QN2150H - Siemens - Molded Case Circuit Breaker
    Plug In - 150 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    QJH23B200 - Siemens - Molded Case Circuit Breaker
    QJH23B200 - Siemens - Molded Case Circuit Breaker
    Bolt On - 200 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    QJH23B125 - Siemens - Molded Case Circuit Breaker
    QJH23B125 - Siemens - Molded Case Circuit Breaker
    Bolt On - 125 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    QJH22B200 - Siemens - Molded Case Circuit Breaker
    QJH22B200 - Siemens - Molded Case Circuit Breaker
    Bolt On - 200 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    QJH22B150 - Siemens - Molded Case Circuit Breaker
    QJH22B150 - Siemens - Molded Case Circuit Breaker
    Bolt On - 150 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    QJ23B200 - Siemens - Molded Case Circuit Breaker
    QJ23B200 - Siemens - Molded Case Circuit Breaker
    Bolt On - 200 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    QJ23B125 - Siemens - Molded Case Circuit Breaker
    QJ23B125 - Siemens - Molded Case Circuit Breaker
    Bolt On - 125 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    QJ22B200H - Siemens - Molded Case Circuit Breaker
    QJ22B200H - Siemens - Molded Case Circuit Breaker
    Bolt On - 200 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    QJ22B125 - Siemens - Molded Case Circuit Breaker
    QJ22B125 - Siemens - Molded Case Circuit Breaker
    Bolt On - 125 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    NGB3B080B - Siemens - Molded Case Circuit Breaker
    NGB3B080B - Siemens - Molded Case Circuit Breaker
    Bolt On - 80 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    NGB1B020B - Siemens - Molded Case Circuit Breaker
    NGB1B020B - Siemens - Molded Case Circuit Breaker
    Bolt On - 20 Amp - 1 Pole - 347 Volt
    Siemens / ITE
    NGB1B015B - Siemens - Molded Case Circuit Breaker
    NGB1B015B - Siemens - Molded Case Circuit Breaker
    Bolt On - 15 Amp - 1 Pole - 347 Volt
    Siemens / ITE
    JXD63S400A - Siemens - Molded Case Circuit Breaker
    Bolt-on - 400 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    JXD63B350 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 350 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    JXD63B300 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 300 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    JXD62B400 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 400 Amp - 2 Pole - 600 Volt
    Siemens/ITE
    JXD23B400 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 400 Amp - 3 Pole - 240 Volt
    Siemens/ITE
    JD63T225 - Siemens 225 Amp 3 Pole 600 Volt Molded Case Circuit Breaker Trip Unit
    JD63T225 - Siemens - Trip Unit
    Bolt-on - 225 Amp - 3 Pole - 600 Volt
    Siemens / ITE
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    JD63T200 - Siemens 200 Amp 3 Pole 600 Volt Molded Case Circuit Breaker Trip Unit
    JD63T200 - Siemens - Trip Unit
    Feed Thru - 200 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    HFXD63B200 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 200 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    HFXD63B175 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 175 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    HEB3B100B - Siemens - Molded Case Circuit Breaker
    HEB3B100B - Siemens - Molded Case Circuit Breaker
    Bolt-on - 100 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    HEB3B070B - Siemens - Molded Case Circuit Breaker
    HEB3B070B - Siemens - Molded Case Circuit Breaker
    Bolt-on - 70 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    HEB3B050B - Siemens - Molded Case Circuit Breaker
    HEB3B050B - Siemens - Molded Case Circuit Breaker
    Bolt-on - 50 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    HEB3B040B - Siemens - Molded Case Circuit Breaker
    HEB3B040B - Siemens - Molded Case Circuit Breaker
    Bolt-on - 40 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    Sale
    FXD63H150 - Siemens - Molded Case Circuit Breaker
    FXD63H150 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 150 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $400 CAD
    Sale
    FXD63B250 - Siemens - Molded Case Circuit Breaker
    FXD63B250 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 250 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $400 CAD
    Sale
    FXD63B100 - Siemens - Molded Case Circuit Breaker
    FXD63B100 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 100 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $340 CAD
    Sale
    FXD63B090 - Siemens - Molded Case Circuit Breaker
    FXD63B090 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 90 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $340 CAD
    Sale
    FXD63B080 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 80 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $340 CAD
    Sale
    FXD63A150 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 150 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $500 CAD
    FXD62B250 - Siemens - Molded Case Circuit Breaker
    FXD62B250 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 250 Amp - 2 Pole - 600 Volt
    Siemens/ITE
    ED63B090L - Siemens - Molded Case Circuit Breaker
    ED63B090L - Siemens - Molded Case Circuit Breaker
    Feed Thru - 90 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    ED63B035L - Siemens - Molded Case Circuit Breaker
    ED63B035L - Siemens - Molded Case Circuit Breaker
    Feed Thru - 35 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    ED63A040 - Siemens - Molded Case Circuit Breaker
    ED63A040 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 40 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    ED63A030 - Siemens - Molded Case Circuit Breaker
    ED63A030 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 30 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    ED63A005 - Siemens - Molded Case Circuit Breaker
    ED63A005 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 5 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    ED62B030L - Siemens - Molded Case Circuit Breaker
    Feed Thru - 30 Amp - 2 Pole - 600 Volt
    Siemens/ITE
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