Molded Case Breakers

105 products

    Shop our wide selection molded case (MCCB) circuit breakers. 
    105 products
    HKD3175Y - Eaton Molded Case Circuit Breaker
    HKD3175Y - Eaton - Molded Case Circuit Breaker
    Bolt-On - 175 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    HKD3175X - Eaton Molded Case Circuit Breaker
    HKD3175X - Eaton - Molded Case Circuit Breaker
    Bolt-On - 175 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    HKD3175C - Eaton Molded Case Circuit Breaker
    HKD3175C - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    HKD3175W - Eaton Molded Case Circuit Breaker
    HKD3175W - Eaton - Molded Case Circuit Breaker
    Bolt-On - 175 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sale
    TQD32175 - GE - Molded Case Circuit Breaker
    TQD32175 - GE - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 3 Pole - 240 Volt
    GE
    Save $617.01 CAD
    Sold Out
    TQD22175 - GE - Molded Case Circuit Breaker
    TQD22175 - GE - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 2 Pole - 240 Volt
    GE
    THQD32175 - GE - Molded Case Circuit Breaker
    THQD32175 - GE - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 3 Pole - 240 Volt
    GE
    Sold Out
    THQD22175 - GE - Molded Case Circuit Breaker
    THQD22175 - GE - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 2 Pole - 240 Volt
    GE
    Sale
    JGM36175 - Square D 175 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    JGM36175 - Square D - 175 Amp Molded Case Circuit Breaker
    Bolt-On - 175 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $420 CAD
    FXD63B175L - Siemens - 175 Amp Molded Case Circuit Breaker
    FXD63B175L - Siemens - 175 Amp Molded Case Circuit Breaker
    Bolt-On - 175 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    KC34175 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 175 Amp - 3 Pole - 480 Volt
    Schneider Electric
    KI36175 - Square D - Molded Case Circuit Breaker
    KI36175 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 175 Amp - 3 Pole - 600 Volt
    Schneider Electric
    QGA221751 - Square D 175 Amp 2 Pole 240 Volt Molded Case Circuit Breaker
    QGA221751 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 175 Amp - 2 Pole - 240 Volt
    Schneider Electric
    KD3175 - Eaton - Molded Case Circuit Breaker
    KD3175 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sold Out
    THQD22175WL - GE 175 Amp 2 Pole 240 Volt Molded Case Circuit Breaker
    THQD22175WL - GE - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 2 Pole - 240 Volt
    GE
    BW2175 - Eaton - Molded Case Circuit Breaker
    BW2175 - Eaton - Main Circuit Breaker
    Bolt-On - 175 Amp - 2 Pole - 240 Volt
    Eaton Cutler-Hammer
    JGH3175FAG - Eaton - Molded Case Circuit Breaker
    JGH3175FAG - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    BWH2175 - Eaton - Main Circuit Breaker
    Bolt On - 175 Amp - 2 Pole - 240 Volt
    Eaton Cutler-Hammer
    Sold Out
    EDB3175L - Eaton - Molded Case Circuit Breaker
    EDB3175L - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 3 Pole - 240 Volt
    Eaton Cutler-Hammer
    KAL36175 - Square D - Molded Case Circuit Breaker
    Feed Thru - 175 Amp - 3 Pole - 600 Volt
    Schneider Electric
    KHL36175 - Square D 175 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    KHL36175 - Square D - Molded Case Circuit Breaker
    Feed Thru - 175 Amp - 3 Pole - 600 Volt
    Schneider Electric
    HFXD63B175L - Siemens - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    HFD63B175L - Siemens - Molded Case Circuit Breaker
    HFD63B175L - Siemens - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    JDB3175 - Eaton - Molded Case Circuit Breaker
    JDB3175 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    JD3175 - Eaton - Molded Case Circuit Breaker
    JD3175 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 175 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    HKD3175 - Eaton - Molded Case Circuit Breaker
    HKD3175 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    HJD3175W - Eaton - Molded Case Circuit Breaker
    HJD3175W - Eaton - Molded Case Circuit Breaker
    Bolt-On - 175 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    HFD2175 - Eaton - Molded Case Circuit Breaker
    HFD2175 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 175 Amp - 2 Pole - 600 Volt
    Eaton Cutler-Hammer
    HJD3175 - Eaton - Molded Case Circuit Breaker
    HJD3175 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    CFD63B175 - Siemens 175 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    CFD63B175 - Siemens - Molded Case Circuit Breaker
    Bolt On - 175 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    HFD63B175 - Siemens - Molded Case Circuit Breaker
    HFD63B175 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    QRH23B175 - Siemens - Molded Case Circuit Breaker
    QRH23B175 - Siemens - Molded Case Circuit Breaker
    Bolt On - 175 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    QRH22B175 - Siemens - Molded Case Circuit Breaker
    QRH22B175 - Siemens - Molded Case Circuit Breaker
    Bolt On - 175 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    QR23B175 - Siemens - Molded Case Circuit Breaker
    QR23B175 - Siemens - Molded Case Circuit Breaker
    Bolt On - 175 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    QR22B175 - Siemens - Molded Case Circuit Breaker
    QR22B175 - Siemens - Molded Case Circuit Breaker
    Bolt On - 175 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    QN2175R - Siemens - Molded Case Circuit Breaker
    QN2175R - Siemens - Molded Case Circuit Breaker
    Plug In - 175 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    QJH23B175 - Siemens - Molded Case Circuit Breaker
    QJH23B175 - Siemens - Molded Case Circuit Breaker
    Bolt On - 175 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    QJH22B175 - Siemens - Molded Case Circuit Breaker
    QJH22B175 - Siemens - Molded Case Circuit Breaker
    Bolt On - 175 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    QJ23B175H - Siemens - Molded Case Circuit Breaker
    QJ23B175H - Siemens - Molded Case Circuit Breaker
    Bolt On - 175 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    QJ23B175 - Siemens - Molded Case Circuit Breaker
    QJ23B175 - Siemens - Molded Case Circuit Breaker
    Bolt On - 175 Amp - 3 Pole - 240 Volt
    Siemens / ITE
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