Molded Case Breakers

214 products

    Shop our wide selection molded case (MCCB) circuit breakers. 
    214 products
    HDA261502 - Square D 150 Amp 2 Pole 600 Volt Molded Case Circuit Breaker
    HDA261502 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 2 Pole - 600 Volt
    Schneider Electric
    HFD63B150L - Siemens - Molded Case Circuit Breaker
    HFD63B150L - Siemens - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    SGLC3601L3XX - General Electric 150 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    SGLC3601L3XX - GE - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    GE
    KD3150 - Eaton - Molded Case Circuit Breaker
    KD3150 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    HFD63B150 - Siemens - Molded Case Circuit Breaker
    HFD63B150 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 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
    QN2150H - Siemens - Molded Case Circuit Breaker
    QN2150H - Siemens - Molded Case Circuit Breaker
    Plug In - 150 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
    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
    FXD63A150 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 150 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $500 CAD
    CFD63B150 - Siemens - Molded Case Circuit Breaker
    CFD63B150 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    TQD32150WL - GE - Molded Case Circuit Breaker
    TQD32150WL - GE - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 240 Volt
    GE
    Sale
    SELA36AT0150 - GE - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    GE
    Save $251 CAD
    HFD3150L - Eaton - Molded Case Circuit Breaker
    HFD3150L - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    ED3150L - Eaton - Molded Case Circuit Breaker
    ED3150L - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 240 Volt
    Eaton Cutler-Hammer
    QDA32150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Sale
    HJA36150 - Square D 150 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HJA36150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,205 CAD
    Sale
    JGL36150 - Square D - Molded Case Circuit Breaker
    JGL36150 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $500 CAD
    Sale
    JGA36150 - Square D - Molded Case Circuit Breaker
    JGA36150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $820 CAD
    Sale
    JDA36150 - Square D - Molded Case Circuit Breaker
    JDA36150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $330 CAD
    Sale
    JLA36200
    JLA36150 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $620 CAD
    Sale
    HDA36150U31X - Square D - Molded Case Circuit Breaker
    HDA36150U31X - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - - 150 Amp - 3 Pole - 600 Volt
    Schneider
    Save $81.01 CAD
    PDG23F0150TFFJ - Eaton - Molded Case Circuit Breaker
    PDG23F0150TFFJ - Eaton - Molded Case Circuit Breaker
    Feed Thru - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sale
    KDC3150 - Eaton - Molded Case Circuit Breaker
    KDC3150 - Eaton - Molded Case Circuit Breaker
    Feed Thru - 150A - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $9,248.21 CAD
    Sale
    JDC3150 - Eaton - Molded Case Circuit Breaker
    JDC3150 - Eaton - Molded Case Circuit Breaker
    Feed Thru - 150A - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $7,002.61 CAD
    HFD1150L - Eaton - Molded Case Circuit Breaker
    HFD1150L - Eaton - Molded Case Circuit Breaker
    Feed Thru - 150A - 1 Pole - 277 Volt
    Eaton Cutler-Hammer
    Sale
    FD1150L - Eaton - Molded Case Circuit Breaker
    FD1150L - Eaton - Molded Case Circuit Breaker
    Feed Thru - 150A - 1 Pole - 277 Volt
    Eaton Cutler-Hammer
    Save $78 CAD
    QRH23B150L - Siemens - Molded Case Circuit Breaker
    QRH23B150L - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 240 Volt
    Siemens/ITE
    QRH22B150L - Siemens - Molded Case Circuit Breaker
    QRH22B150L - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 2 Pole - 240 Volt
    Siemens/ITE
    QR23B150L - Siemens - Molded Case Circuit Breaker
    QR23B150L - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 240 Volt
    Siemens/ITE
    QR22B150L - Siemens - Molded Case Circuit Breaker
    QR22B150L - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 2 Pole - 240 Volt
    Siemens/ITE
    HQR22B150H - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 2 Pole - 240 Volt
    Siemens/ITE
    HJD3150L - Eaton - Molded Case Circuit Breaker
    HJD3150L - Eaton - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sale
    FXD63L150L - Siemens - Molded Case Circuit Breaker
    FXD63L150L - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $475 CAD
    Sale
    FXD63H150L - Siemens - Molded Case Circuit Breaker
    FXD63H150L - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $400 CAD
    Sale
    FXD63B150L - Siemens - Molded Case Circuit Breaker
    FXD63B150L - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $340 CAD
    Sale
    FXD63A150L - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $500 CAD
    FXD62B150L - Siemens - Molded Case Circuit Breaker
    FXD62B150L - Siemens - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 2 Pole - 600 Volt
    Siemens/ITE
    FDC3150 - Eaton - Molded Case Circuit Breaker
    FDC3150 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    FD62B150 - Siemens 150 Amp 2 Pole 600 Volt Feed Thru Molded Case Circuit Breaker
    FD62B150 - Siemens - Molded Case Circuit Breaker
    Feed Thru - 150 Amp - 2 Pole - 600 Volt
    Siemens/ITE
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