Molded Case Breakers

214 products

    Shop our wide selection molded case (MCCB) circuit breakers. 
    214 products
    QN2150R - Siemens - Molded Case Circuit Breaker
    QN2150R - Siemens - Circuit Breaker
    Plug in - 150 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    ED2150L - Eaton - Molded Case Circuit Breaker
    ED2150L - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 2 Pole - 240 Volt
    Eaton Cutler-Hammer
    QBL22150 - Square D 150 Amp 2 Pole 240 Volt Thermal Magnetic Molded Case Circuit Breaker
    QBL22150 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 2 Pole - 240 Volt
    Schneider Electric
    Sale
    HFD3150 - Eaton - Molded Case Circuit Breaker
    HFD3150 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $500 CAD
    Sale
    FXD63B150 - Siemens - Molded Case Circuit Breaker
    FXD63B150 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 150 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $340 CAD
    HMCP150T4C - Eaton - Molded Case Circuit Breaker
    HMCP150T4C - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sale
    JDL36150 - Square D - Molded Case Circuit Breaker
    JDL36150 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $540 CAD
    HMCP150U4C - Eaton - Molded Case Circuit Breaker
    HMCP150U4C - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    FD3150 - Eaton - Molded Case Circuit Breaker
    FD3150 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    QN2150 - Siemens - Molded Case Circuit Breaker
    QN2150 - Siemens - Molded Case Circuit Breaker
    Plug In - 150 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    Sale
    HLA36150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $2,100 CAD
    Sale
    FD2150 - Eaton - Molded Case Circuit Breaker
    FD2150 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 2 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $400 CAD
    QR23B150 - Siemens - Molded Case Circuit Breaker
    QR23B150 - Siemens - Molded Case Circuit Breaker
    Bolt On - 150 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    Sale
    SEDA36AT0150 - GE - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    GE
    Save $239 CAD
    FDC3150L - Eaton - Molded Case Circuit Breaker
    FDC3150L - Eaton - Molded Case Circuit Breaker
    Feed Thru - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    FDB3150L - Eaton - Molded Case Circuit Breaker
    FDB3150L - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    QBL32150 - Square D 150 Amp 3 Pole 240 Volt Thermal Magnetic Molded Case Circuit Breaker
    QBL32150 - Square D - Molded Case Circuit Breaker
    Feed_thru - 150 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Sale
    HDA36150 - Square D 150 Amp 3 Pole 600 Volt Plug-In Molded Case Circuit Breaker
    HDA36150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $522 CAD
    FDB3150 - Eaton - Molded Case Circuit Breaker
    FDB3150 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    QR22B150 - Siemens - Molded Case Circuit Breaker
    QR22B150 - Siemens - Molded Case Circuit Breaker
    Bolt On - 150 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    Sold Out
    TQD22150WL - GE - Molded Case Circuit Breaker
    TQD22150WL - GE - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 2 Pole - 240 Volt
    GE
    FD3150L - Eaton - Molded Case Circuit Breaker
    FD3150L - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sale
    HLL36150 - Square D - Molded Case Circuit Breaker
    HLL36150 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,026 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
    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
    HMCP150T4 - Eaton - Molded Case Circuit Breaker
    HMCP150T4 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    HJL36150M74 - Square D 150 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HJL36150M74 - Square D - Molded Case Circuit Breaker
    Feed Thru - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    QJ23B150 - Siemens - Molded Case Circuit Breaker
    QJ23B150 - Siemens - Molded Case Circuit Breaker
    Bolt On - 150 Amp - 3 Pole - 240 Volt
    Siemens / ITE
    TED136150WL - GE 150 Amp 3 Pole 600 Volt Molded Case Thermal Magnetic Circuit Breaker
    TED136150WL - GE - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    GE
    QGA32150 - Square D 150 Amp 3 Pole 240 Volt Plug-In Molded Case Circuit Breaker
    QGA32150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Sale
    HGL36150 - Square D 150 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HGL36150 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $820 CAD
    Sale
    HGA36150 - Square D 150 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HGA36150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $873 CAD
    Sale
    HDL36150 - Square D 150 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HDL36150 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $570 CAD
    FDB2150 - Eaton - Molded Case Circuit Breaker
    FDB2150 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 2 Pole - 600 Volt
    Eaton Cutler-Hammer
    FD62B150L - Siemens 150 Amp 2 Pole 600 Volt Feed Thru Molded Case Circuit Breaker
    FD62B150L - Siemens - 150 Amp Molded Case Circuit Breaker
    Feed Thru - 150 Amp - 2 Pole - 600 Volt
    Siemens/ITE
    HMCP150U4 - Eaton - Molded Case Circuit Breaker
    HMCP150U4 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sold Out
    HFDE315021 - Eaton - Molded Case Circuit Breaker
    HFDE315021 - Eaton - Molded Case Circuit Breaker
    4 Volt
    Eaton Cutler-Hammer
    CCVH2150 - Eaton - Molded Case Circuit Breaker
    CCVH2150 - Eaton - Main Circuit Breaker
    Feed Thru - 150 Amp - 2 Pole - 240 Volt
    Eaton Cutler-Hammer
    HGA261501 - Square D 150 Amp 2 Pole 600 Volt Molded Case Circuit Breaker
    HGA261501 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 2 Pole - 600 Volt
    Schneider Electric
    HDA261504 - Square D 150 Amp 2 Pole 600 Volt Molded Case Circuit Breaker
    HDA261504 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 2 Pole - 600 Volt
    Schneider Electric
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