Molded Case Breakers

7530 products

    Shop our wide selection molded case (MCCB) circuit breakers. 
    7530 products
    Sale
    FDB2015 - Eaton - Molded Case Circuit Breaker
    FDB2015 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 15 Amp - 2 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $100 CAD
    FD3045 - Eaton - Molded Case Circuit Breaker
    FD3045 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sale
    FD2100 - Eaton - Molded Case Circuit Breaker
    FD2100 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 100 Amp - 2 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $180 CAD
    Sale
    ED3175 - Eaton - Molded Case Circuit Breaker
    Bolt On - 175 Amp - 3 Pole - 240 Volt
    Eaton Cutler-Hammer
    Save $200 CAD
    TQD32125 - GE - Molded Case Circuit Breaker
    TQD32125 - GE - Molded Case Circuit Breaker
    Feed-Thru - 125 Amp - 3 Pole - 240 Volt
    GE
    THQC2120 - GE - Molded Case Circuit Breaker
    THQC2120 - GE - Molded Case Circuit Breaker
    Feed-Thru - 20 Amp - 2 Pole - 240 Volt
    GE
    ED63B045 - Siemens - Moded Case Circuit Breaker
    ED63B045 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    TEB132100 - GE 100 Amp 3 Pole 240 Volt Molded Case Circuit Breaker General Electric Lug
    TEB132100 - GE - Molded Case Circuit Breaker
    Feed-Thru - 100 Amp - 3 Pole - 240 Volt
    GE
    TED136125 - GE 125 Amp 3 Pole 600 Volt Molded Case Thermal Magnetic Circuit Breaker
    TED136125 - GE - Molded Case Circuit Breaker
    Feed-Thru - 125 Amp - 3 Pole - 600 Volt
    GE
    Sale
    HMCP015E0 - Eaton - Molded Case Circuit Breaker
    HMCP015E0 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 15 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $429 CAD
    ED43B040 - Siemens - Molded Case Circuit Breaker
    ED43B040 - Siemens - Molded Case Circuit Breaker
    ED43B040 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 40 Amp - 3 Pole - 480 Volt
    Siemens/ITE
    B2110 - Siemens - Molded Case Circuit Breaker
    B2110 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 110 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    HJL36050M72 - Square D - Molded Case Circuit Breaker
    HJL36050M72 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 50 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Sale
    EGB14015 - Square D 15 Amp 1 Pole 277 Volt Bolt-On Molded Case Circuit Breaker
    EGB14015 - Square D 15 Amp 1 Pole 277 Volt Bolt-On Molded Case Circuit Breaker
    EGB14015 - Square D - Molded Case Circuit Breaker
    Bolt-On - 15 Amp - 1 Pole - 277 Volt
    Schneider Electric
    Save $72 CAD
    Sale
    HGB3B015B - Siemens - Molded Case Circuit Breaker
    HGB3B015B - Siemens - Molded Case Circuit Breaker
    Bolt-On - 15 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    Save $154 CAD
    Sale
    EJB36080 - Square D 80 Amp 3 Pole 600 Volt Bolt-On Circuit Breaker
    EJB36080 - Square D 80 Amp 3 Pole 600 Volt Bolt-On Circuit Breaker
    EJB36080 - Square D - Molded Case Circuit Breaker
    Bolt-On - 80 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $840 CAD
    Sale
    EJB16030 - Square D 30 Amp 1 Pole 347 Volt Bolt-On Circuit Molded Case Breaker
    EJB16030 - Square D 30 Amp 1 Pole 347 Volt Bolt-On Circuit Molded Case Breaker
    EJB16030 - Square D - Molded Case Circuit Breaker
    Bolt-On - 30 Amp - 1 Pole - 347 Volt
    Schneider Electric
    Save $138 CAD
    LDL36600U31X - Square D - Molded Case Circuit Breaker
    Feed Thru - 600 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Sale
    MDL3800 - Eaton - Circuit Breakers Load Centers
    MDL3800 - Eaton - Circuit Breakers Load Centers
    Feed-Thru - 800 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $2,318 CAD
    Sale
    HKD3225 - Eaton - Molded Case Circuit Breaker
    HKD3225 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 225 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $1,527 CAD
    Sale
    EGB36040 - Square D 40 Amp 3 Pole 600 Volt Bolt-On Circuit Breaker
    EGB36040 - Square D 40 Amp 3 Pole 600 Volt Bolt-On Circuit Breaker
    EGB36040 - Square D - Molded Case Circuit Breaker
    Bolt-On - 40 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $510 CAD
    Sale
    EGB36015 - Square D 15 Amp 3 Pole 600 Volt Bolt-On Circuit Breaker
    EGB36015 - Square D 15 Amp 3 Pole 600 Volt Bolt-On Circuit Breaker
    EGB36015 - Square D - Molded Case Circuit Breaker
    Bolt-On - 15 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $510 CAD
    CED63B050 - Siemens 50 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    CED63B050 - Siemens - Molded Case Circuit Breaker
    Bolt On - 50 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    CED63B040 - Siemens 40 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    CED63B040 - Siemens - Molded Case Circuit Breaker
    Bolt On - 40 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    Sale
    EJB34060 - Square D 60 Amp 3 Pole 480 Volt Bolt-On Circuit Breaker
    EJB34060 - Square D 60 Amp 3 Pole 480 Volt Bolt-On Circuit Breaker
    EJB34060 - Square D - Molded Case Circuit Breaker
    Bolt-On - 60 Amp - 3 Pole - 480 Volt
    Schneider Electric
    Save $210 CAD
    Sale
    EJB34015 - Square D 15 Amp 3 Pole 480 Volt Bolt-On Circuit Breaker
    EJB34015 - Square D 15 Amp 3 Pole 480 Volt Bolt-On Circuit Breaker
    EJB34015 - Square D - Molded Case Circuit Breaker
    Bolt-On - 15 Amp - 3 Pole - 480 Volt
    Schneider Electric
    Save $204 CAD
    Sale
    EGB34035 - Square D 35 Amp 3 Pole 480 Volt Bolt-On Circuit Breaker
    EGB34035 - Square D 35 Amp 3 Pole 480 Volt Bolt-On Circuit Breaker
    EGB34035 - Square D - Molded Case Circuit Breaker
    Bolt-On - 35 Amp - 3 Pole - 480 Volt
    Schneider Electric
    Save $162 CAD
    Sale
    EGB34030 - Square D 30 Amp 3 Pole 480 Volt Bolt-On Circuit Breaker
    EGB34030 - Square D 30 Amp 3 Pole 480 Volt Bolt-On Circuit Breaker
    EGB34030 - Square D - Molded Case Circuit Breaker
    Bolt-On - 30 Amp - 3 Pole - 480 Volt
    Schneider Electric
    Save $594 CAD
    ED22B015 - Siemens - Molded Case Circuit Breaker
    ED22B015 - Siemens - Molded Case Circuit Breaker
    Bolt On - 15 Amp - 2 Pole - 240 Volt
    Siemens/ITE
    Limited availability
    CQD360 - Siemens - Molded Case Circuit Breaker
    CQD360 - Siemens - Molded Case Circuit Breaker
    Feed Thru - 60 Amp - 3 Pole - 480 Volt
    Siemens / ITE
    CED63B070 - Siemens - Molded Case Circuit Breaker
    Bolt On - 70 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    QR23B125 - Siemens - Molded Case Circuit Breaker
    QR23B125 - Siemens - Molded Case Circuit Breaker
    Bolt On - 125 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    QR22B150 - Siemens - Molded Case Circuit Breaker
    QR22B150 - Siemens - Molded Case Circuit Breaker
    Bolt On - 150 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    QJ22B100 - Siemens - Molded Case Circuit Breaker
    QJ22B100 - Siemens - Molded Case Circuit Breaker
    Bolt On - 100 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    Sale
    NGB3B015B - Siemens - Molded Case Circuit Breaker
    NGB3B015B - Siemens - Molded Case Circuit Breaker
    Bolt On - 15 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    Save $118 CAD
    JXD63B400 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 400 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Sale
    FXD63S250A - Siemens - Molded Case Circuit Breaker
    FXD63S250A - Siemens - Molded Case Circuit Breaker
    Bolt-on - 250 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $306 CAD
    Sale
    FXD63B175 - Siemens - Molded Case Circuit Breaker
    FXD63B175 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 175 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $340 CAD
    ED63A030 - Siemens - Molded Case Circuit Breaker
    ED63A030 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 30 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    CED63B060L - Siemens - Molded Case Circuit Breaker
    Feed-Thru - 60 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    Recently viewed