Molded Case Breakers

2888 products

    Shop our wide selection molded case (MCCB) circuit breakers. 
    2888 products
    HJA36070 - Square D 70 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HJA36070 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 70 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Sale
    HJA36030 - Square D 30 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HJA36030 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 30 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $240 CAD
    Sale
    HGL36100 - Square D 100 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HGL36100 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 100 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $210 CAD
    Sale
    HGA36020 - Square D 20 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HGA36020 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 20 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $210 CAD
    Sale
    HDL36015 - Square D 15 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HDL36015 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 15 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $300 CAD
    Sale
    HDA36125 - Square D 125 Amp 3 Pole 600 Volt Plug-In Molded Case Circuit Breaker
    HDA36125 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 125 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $438 CAD
    Sale
    JLL36200 - Square D - Molded Case Circuit Breaker
    JLL36200 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 200 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,032 CAD
    Sale
    JJA36250 - Square D - Molded Case Circuit Breaker
    JJA36250 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 250 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,210 CAD
    Sale
    JJA36150 - Square D - Molded Case Circuit Breaker
    JJA36150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $630 CAD
    Sale
    JGL36200 - Square D - Molded Case Circuit Breaker
    JGL36200 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 200 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $310 CAD
    Sale
    JGA36250 - Square D - Molded Case Circuit Breaker
    JGA36250 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 250 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $872 CAD
    Sale
    JDA36225 - Square D - Molded Case Circuit Breaker
    JDA36225 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 225 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $580 CAD
    Sale
    JDL36225 - Square D - Molded Case Circuit Breaker
    JDL36225 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 225 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $840 CAD
    Sold Out
    SGLA36AT0600 - GE 600 amp 3 pole 600 Volt Bolt-On Molded Case Circuit Breaker
    SGLA36AT0600 - GE - Molded Case Circuit Breaker
    Bolt-On - 600 Amp - 3 Pole - 600 Volt
    GE
    Sale
    JLA36250
    JLA36250 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 250 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,620 CAD
    FDC3090 - Eaton - MoldedCase Circuit Breakers
    FDC3090 - Eaton - MoldedCase Circuit Breakers
    Bolt-On - 90 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    FDB3100 - Eaton - Molded Case Circuit Breaker
    FDB3100 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 100 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    FDB3015 - Eaton - Molded Case Circuit Breaker
    FDB3015 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 15 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    FD3070 - Eaton - Molded Case Circuit Breaker
    FD3070 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 70 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    FD3020 - Eaton - Molded Case Circuit Breaker
    FD3020 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 20 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sale
    ED43B100 - Siemens - Molded Case Circuit Breaker
    ED43B100 - Siemens - Molded Case Circuit Breaker
    Bolt On - 100 Amp - 3 Pole - 480 Volt
    Siemens/ITE
    Save $100 CAD
    ED3175 - Eaton - Molded Case Circuit Breaker
    ED3175 - Eaton - Molded Case Circuit Breaker
    Bolt On - 175 Amp - 3 Pole - 240 Volt
    Eaton Cutler-Hammer
    Sale
    HFD3060L - Eaton Cutler-Hammer 60 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HFD3060 - Eaton - Molded Case Circuit Breaker
    Feed Thru - 60 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $1,554.23 CAD
    THED136020 - GE - Molded Case Circuit Breaker
    Feed-Thru - 20 Amp - 3 Pole - 600 Volt
    GE
    TED136150 - GE 150 Amp 3 Pole 600 Volt Molded Case Thermal Magnetic Circuit Breaker
    TED136150 - GE - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    GE
    Sale
    HFD3040 - Eaton - Moded Case Circuit Breaker
    HFD3040 - Eaton - Moded Case Circuit Breaker
    Feed Thru - 40 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $1,580.19 CAD
    Sale
    HFD3050 - Eaton - Moded Case Circuit Breaker
    HFD3050 - Eaton - Moded Case Circuit Breaker
    Feed Thru - 50 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $1,580.19 CAD
    TJK436Y400 - General Electric 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    TJK436Y400 - GE - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    GE
    NGC308033E - Eaton - Molded Case Circuit Breaker
    NGC308033E - Eaton - Molded Case Circuit Breaker
    Bolt-On - 800 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    HMCP150T4 - Eaton - Molded Case Circuit Breaker
    HMCP150T4 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sold Out
    EJB36045 - Square D 45 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    EJB36045 - Square D 45 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    EJB36045 - Square D - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $750 CAD
    HKD3125 - Eaton - Molded Case Circuit Breaker
    HKD3125 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 125 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sale
    HJL36070 - Square D - Molded Case Circuit Breaker
    HJL36070 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 70 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $310 CAD
    Sale
    BGA36060 - Square D 60 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    BGA36060 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 30 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $260 CAD
    EDB3225L - Eaton - Molded Case Circuit Breaker
    EDB3225L - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 225 Amp - 3 Pole - 240 Volt
    Eaton Cutler-Hammer
    LGG3B030L - Siemens - Molded Case Circuit Breaker
    LGG3B030L - Siemens - Molded Case Circuit Breaker
    Feed-Thru - 30 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    HGB3B015B - Siemens - Molded Case Circuit Breaker
    HGB3B015B - Siemens - Molded Case Circuit Breaker
    Bolt-On - 15 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    Sale
    EJB36050 - Square D 50 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    EJB36050 - Square D 50 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    EJB36050 - Square D - Molded Case Circuit Breaker
    Bolt-On - 50 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $750 CAD
    Sold Out
    EJB36090 - Square D 90 Amp 3 Pole 600 Volt Bolt-On Circuit Breaker
    EJB36090 - Square D 90 Amp 3 Pole 600 Volt Bolt-On Circuit Breaker
    EJB36090 - Square D - Molded Case Circuit Breaker
    Bolt-On - 90 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $840 CAD
    Sale
    EJB34100 - Square D 100 Amp 3 Pole 480 Volt Bolt-On Circuit Breaker
    EJB34100 - Square D 100 Amp 3 Pole 480 Volt Bolt-On Circuit Breaker
    EJB34100 - Square D - Molded Case Circuit Breaker
    Bolt-On - 100 Amp - 3 Pole - 480 Volt
    Schneider Electric
    Save $390 CAD
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