Molded Case Breakers

7249 products

    Shop our wide selection molded case (MCCB) circuit breakers. 
    7249 products
    Sale
    JXD63B400L - Siemens - Molded Case Circuit Breaker
    Bolt-In - 350 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Save $314 CAD
    Sale
    TQDL21125 - GE 125 Amp Molded Case Circuit Breaker
    Plug-In - 125 Amp - 2 Pole - 120 Volt
    GE
    Save $208 CAD
    Sale
    FDC4030 - Eaton - 30 Amp Molded Case Circuit Breaker
    Bolt-On - 30 Amp - 4 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $289.25 CAD
    Sale
    THQDL21150 - GE 150 Amp Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 2 Pole - 240 Volt
    GE
    Save $202 CAD
    Sale
    HGA36100U31X - Square D 100 Amp 3 Pole 600 Volt Plug-In Molded Case Circuit Breaker
    HGA36100U31X - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 100 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $404 CAD
    Sale
    HLL36035 - Square D 35 Amp 3 Pole 600 Volt Feed Thru Molded Case Circuit Breaker
    HLL36035 - Square D - 35 Amp Molded Case Circuit Breaker
    Feed-Thru - 35 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $940 CAD
    Sale
    HLL36045 - Square D 45 Amp 3 Pole 600 Volt Feed Thru Molded Case Circuit Breaker
    HLL36045 - Square D - 45 Amp Molded Case Circuit Breaker
    Feed-Thru - 45 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $890 CAD
    Sale
    JXD22B200L - Siemens - 200 Amp Molded Case Circuit Breaker
    Bolt-In - 200 Amp - 2 Pole - 240 Volt
    Siemens/ITE
    Save $339 CAD
    Sale
    EGH3100FFG - Eaton Cutler-Hammer 100 Amp 3 Pole 600 Volt Feed Thru Molded Case Circuit Breaker
    EGH3100FFG - Eaton - 100 Amp Molded Case Circuit Breaker
    Feed Thru - 100 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $1,076 CAD
    Sale
    JXD22B400L - Siemens 400 Amp 2 Pole 240 Volt Feed Thru Molded Case Circuit Breaker
    JXD22B400L - Siemens - 400 Amp Molded Case Circuit Breaker
    Bolt-In - 400 Amp - 2 Pole - 240 Volt
    Siemens/ITE
    Save $3,007.01 CAD
    Sale
    QGL32125 - Square D 125 Amp 3 Pole 240 Volt Feed Thru Molded Case Circuit Breaker
    QGL32125 - Square D - 125 Amp Molded Case Circuit Breaker
    Feed Thru - 125 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Save $654.01 CAD
    Sale
    BJA36090 - Square D 90 Amp 3 Pole 600 Volt Plug-In Molded Case Circuit Breaker
    BJA36090 - Square D - 90 Amp Molded Case Circuit Breaker
    I-Line Plug-In - 90 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $470 CAD
    Sale
    QDP32100TM - Square D 100 Amp 3 Pole 240 Volt Bolt-On Molded Case Circuit Breaker
    QDP32100TM - Square D - 100 Amp Molded Case Circuit Breaker
    Bolt-On - 100 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Save $520.01 CAD
    Sale
    QDP32150TM - Square D 150 Amp 3 Pole 240 Volt Bolt-On Molded Case Circuit Breaker
    QDP32150TM - Square D - 150 Amp Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Save $323.01 CAD
    Sale
    FD2110 - Eaton Cutler-Hammer 110 Amp 2 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    FD2110 - Eaton - 110 Amp Molded Case Circuit Breaker
    Bolt-On - 110 Amp - 2 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $400 CAD
    Sale
    FD2150K - Eaton Cutler-Hammer 150 Amp 2 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    FD2150K - Eaton - 150 Amp Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 2 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $259.50 CAD
    Sale
    FD1090 - Eaton Cutler-Hammer 90 Amp 1 Pole 277 Volt Bolt-On Molded Case Circuit Breaker
    FD1090 - Eaton - 90 Amp Molded Case Circuit Breaker
    Bolt-On - 90 Amp - 1 Pole - 277 Volt
    Eaton Cutler-Hammer
    Save $140 CAD
    Sale
    EDH3150 - Eaton - 150 Amp Molded Case Circuit Breaker
    Bolt-On - 150 Amp - 3 Pole - 240 Volt
    Eaton Cutler-Hammer
    Save $259 CAD
    Sale
    BJA36045 - Square D 45 Amp 3 Pole 600 Volt Plug-In Molded Case Circuit Breaker
    BJA36045 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 45 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $100 CAD
    Sale
    HQR23B200HL - Siemens 200 Amp 3 Pole 240 Volt Feed Thru Molded Case Circuit Breaker
    HQR23B200HL - Siemens - 200 Amp Molded Case Circuit Breaker
    Bolt-On - 200 Amp - 3 Pole - 240 Volt
    Siemens/ITE
    Save $2,733.01 CAD
    Limited availability
    HQR23B250HL - Siemens 250 Amp 3 Pole 240 Volt Feed Thru Molded Case Circuit Breaker
    HQR23B250HL - Siemens - 250 Amp Molded Case Circuit Breaker
    Bolt-On - 250 Amp - 3 Pole - 240 Volt
    Siemens/ITE
    Save $2,733.01 CAD
    Sale
    TJD432400WL - GE 400 Amp Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 240 Volt
    GE
    Save $2,936.01 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
    Sale
    GHQRSP1020 - Eaton - 20 Amp Molded Case Circuit Breaker
    Bolt-On - 20 Amp - 1 Pole - 480 Volt
    Eaton Cutler-Hammer
    Save $294 CAD
    Sale
    JXD22B300 - Siemens - 300 Amp Molded Case Circuit Breaker
    Bolt-In - 300 Amp - 2 Pole - 240 Volt
    Siemens/ITE
    Save $3,007.01 CAD
    Sale
    JXD22B250 - Siemens - 250 Amp Molded Case Circuit Breaker
    Bolt-In - 250 Amp - 2 Pole - 240 Volt
    Siemens/ITE
    Save $3,007.01 CAD
    FXD63B200L - Siemens - Molded Case Circuit Breaker
    FXD63B200L - Siemens - Molded Case Circuit Breaker
    Bolt-On - 200 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Sale
    QB1025GF - Eaton Cutler-Hammer 25 Amp 1 Pole 120 Volt Bolt-On Molded Case Circuit Breaker
    QB1025GF - Eaton - 25 Amp Molded Case Circuit Breaker
    Bolt-On - 25 Amp - 1 Pole - 120 Volt
    Eaton Cutler-Hammer
    Save $401.01 CAD
    Limited availability
    QB2025EP - Eaton - 25 Amp Molded Case Circuit Breaker
    Bolt-On - 25 Amp - 2 Pole - 240 Volt
    Eaton Cutler-Hammer
    Save $140 CAD
    Sale
    LGL36600U33X - Square D 600 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LGL36600U44X - Square D - Molded Case Circuit Breaker
    Feed-Thru - 600 Amp - 3 Pole - 600 Volt
    Square D
    Save $1,325.01 CAD
    Sale
    LGA36600U33X - Square D 600 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LGA36400U31X - Square D - Molded Case Circuit Breaker
    Plug-In - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $4,963 CAD
    Sale
    LGA36600U33X - Square D 600 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LGA36400U53X - Square D - Molded Case Circuit Breaker
    Plug-In - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $690 CAD
    Sale
    HJA36150U44X - Square D 150 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HJA36150U31X - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 10 Pole - 600 Volt
    Square D
    Save $2,940.01 CAD
    Sale
    THED124045 - GE 45 Amp 2 Pole 480 Volt Feed Thru Molded Case Circuit Breaker
    THED124045 - GE 45 Amp Molded Case Circuit Breaker
    Feed-Thru - 45 Amp - 2 Pole - 480 Volt
    GE
    Save $784.01 CAD
    THED113020 - GE 20 Amp 1 Pole 277 Volt Molded Case Circuit Breaker
    THED113020 - GE - Molded Case Circuit Breaker
    Feed-Thru - 20 Amp - 1 Pole - 277 Volt
    GE
    THED124020 - GE 20 Amp 2 Pole 480 Volt Molded Case Circuit Breaker
    THED124020 - GE - Molded Case Circuit Breaker
    Feed-Thru - 20 Amp - 2 Pole - 480 Volt
    GE
    THED124030 - GE 30 Amp 2 Pole 480 Volt Molded Case Circuit Breaker
    THED124030 - GE - Molded Case Circuit Breaker
    Feed-Thru - 30 Amp - 2 Pole - 480 Volt
    GE
    THED124040 - GE 40 Amp 2 Pole 480 Volt Molded Case Circuit Breaker
    THED124040 - GE - Molded Case Circuit Breaker
    Feed-Thru - 40 Amp - 2 Pole - 480 Volt
    GE
    THED124050 - GE - Molded Case Circuit Breaker
    Feed-Thru - 50 Amp - 2 Pole - 480 Volt
    GE
    THED124060 - GE 60 Amp 2 Pole 480 Volt Molded Case Circuit Breaker
    THED124060 - GE - Molded Case Circuit Breaker
    Feed-Thru - 60 Amp - 2 Pole - 480 Volt
    GE
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