Molded Case Breakers

7536 products

    Shop our wide selection molded case (MCCB) circuit breakers. 
    7536 products
    HFD63B150 - Siemens - Molded Case Circuit Breaker
    HFD63B150 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    ED43B110 - Siemens - Molded Case Circuit Breaker
    ED43B110 - Siemens - Molded Case Circuit Breaker
    ED43B110 - Siemens - Molded Case Circuit Breaker
    Bolt On - 110 Amp - 3 Pole - 480 Volt
    Siemens/ITE
    ED22B070 - Siemens 70 Amp 2 Pole 240 Volt Bolt-On Molded Case Circuit Breaker
    ED22B070 - Siemens - Molded Case Circuit Breaker
    Bolt On - 70 Amp - 2 Pole - 240 Volt
    Siemens/ITE
    ED22B060 - Siemens 60 Amp 2 Pole 240 Volt Bolt-On Molded Case Circuit Breaker
    ED22B060 - Siemens - Molded Case Circuit Breaker
    Bolt On - 60 Amp - 2 Pole - 240 Volt
    Siemens/ITE
    ED22B030 - Siemens - Molded Case Circuit Breaker
    ED22B030 - Siemens - Molded Case Circuit Breaker
    Bolt On - 30 Amp - 2 Pole - 240 Volt
    Siemens/ITE
    CQD380 - Siemens - Molded Case Circuit Breaker
    CQD380 - Siemens - Molded Case Circuit Breaker
    Feed Thru - 80 Amp - 3 Pole - 480 Volt
    Siemens / ITE
    CQD350 - Siemens - Molded Case Circuit Breaker
    CQD350 - Siemens - Molded Case Circuit Breaker
    Feed Thru - 50 Amp - 3 Pole - 480 Volt
    Siemens / ITE
    CQD320 - Siemens - Molded Case Circuit Breaker
    CQD320 - Siemens - Molded Case Circuit Breaker
    Feed Thru - 20 Amp - 3 Pole - 480 Volt
    Siemens / ITE
    CQD150 - Siemens - Molded Case Circuit Breaker
    CQD150 - Siemens - Molded Case Circuit Breaker
    Feed Thru - 50 Amp - 1 Pole - 277 Volt
    Siemens / ITE
    ED61B045L - Siemens - Molded Case Circuit Breaker
    Feed Thru - 45 Amp - 1 Pole - 600 Volt
    Siemens/ITE
    QRH22B150 - Siemens - Molded Case Circuit Breaker
    QRH22B150 - Siemens - Molded Case Circuit Breaker
    Bolt On - 150 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    QR22B225 - Siemens - Molded Case Circuit Breaker
    QR22B225 - Siemens - Molded Case Circuit Breaker
    Bolt On - 225 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    QR22B125 - Siemens - Molded Case Circuit Breaker
    QR22B125 - Siemens - Molded Case Circuit Breaker
    Bolt On - 125 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    Limited availability
    QN2200H - Siemens - Molded Case Circuit Breaker
    QN2200H - Siemens - Molded Case Circuit Breaker
    Plug In - 200 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    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
    QJH23B125 - Siemens - Molded Case Circuit Breaker
    QJH23B125 - Siemens - Molded Case Circuit Breaker
    Bolt On - 125 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    Limited availability
    QJH23B110 - Siemens - Molded Case Circuit Breaker
    QJH23B110 - Siemens - Molded Case Circuit Breaker
    Bolt On - 110 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    QJH23B100 - Siemens - Molded Case Circuit Breaker
    QJH23B100 - Siemens - Molded Case Circuit Breaker
    Bolt On - 100 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    QJ23B225 - Siemens - Molded Case Circuit Breaker
    QJ23B225 - Siemens - Molded Case Circuit Breaker
    Bolt On - 225 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    QJ23B200H - Siemens - Molded Case Circuit Breaker
    QJ23B200H - Siemens - Molded Case Circuit Breaker
    Bolt On - 200 Amp - 3 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
    QJ23B150H - Siemens - Molded Case Circuit Breaker
    QJ23B150H - Siemens - Molded Case Circuit Breaker
    Bolt On - 150 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    QJ22B225 - Siemens - Molded Case Circuit Breaker
    QJ22B225 - Siemens - Molded Case Circuit Breaker
    Bolt On - 225 Amp - 2 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
    QJ22B060 - Siemens - Molded Case Circuit Breaker
    QJ22B060 - Siemens - Molded Case Circuit Breaker
    Bolt On - 60 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    Sale
    NGB3B050B - Siemens - Molded Case Circuit Breaker
    NGB3B050B - Siemens - Molded Case Circuit Breaker
    Bolt On - 50 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    Save $121 CAD
    Sale
    NGB3B020B - Siemens - Molded Case Circuit Breaker
    NGB3B020B - Siemens - Molded Case Circuit Breaker
    Bolt On - 20 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    Save $122 CAD
    NGB2B050B - Siemens - Molded Case Circuit Breaker
    NGB2B050B - Siemens - Molded Case Circuit Breaker
    Bolt On - 50 Amp - 2 Pole - 600 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
    Sale
    NEB3B080B - Siemens - Molded Case Circuit Breaker
    NEB3B080B - Siemens - Molded Case Circuit Breaker
    Bolt On - 80 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    Save $804 CAD
    MXD63S800A - Siemens - Molded Case Circuit Breaker
    MXD63S800A - Siemens - Molded Case Circuit Breaker
    Bolt On - 800 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    LMXD63S800A - Siemens 800 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    LMXD63S800A - Siemens - Molded Case Circuit Breaker
    Bolt-on - 800 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    JXD63H400 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 400 Amp - 3 Pole - 480 Volt
    Siemens/ITE
    JXD63B200 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 200 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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