Circuit Breakers

213 products

    Shop our wide selection of Siemens, GE, Eaton Cutler-Hammer, Square D circuit breakers and more.
    213 products
    KD3400 - Eaton - Molded Case Circuit Breaker
    KD3400 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sale
    SGHA36AT0400 - GE - Molded Case Circuit Breaker
    Bolt-On - 400 Amp - 3 Pole - 600 Volt
    GE
    Save $293 CAD
    Sale
    DK3400 - Eaton - Molded Case Circuit Breaker
    DK3400 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 240 Volt
    Eaton Cutler-Hammer
    Save $492 CAD
    Sale
    LAL36400 - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LAL36400 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $848 CAD
    HJD63B400 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 400 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    TJJ436400WL - GE 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    TJJ436400WL - GE - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    GE
    Sale
    LLA36400U33X - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LLA36400U33X - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $5,048 CAD
    LDA36400U33X - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LDA36400U33X - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    LDL36400U31X - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LDL36400U31X - Square D - Molded Case Circuit Breaker
    Feed Thru - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    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
    Sale
    HMCP400X5 - Eaton - Molded Case Circuit Breaker
    HMCP400X5 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $966 CAD
    JD63B400 - Siemens - Molded Case Circuit Breaker
    JD63B400 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 300 Amp - 3 Pole - 400 Volt
    Siemens/ITE
    HMCP400X5C - Eaton - Molded Case Circuit Breaker
    HMCP400X5C - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sale
    HMCP400R5C - Eaton - Molded Case Circuit Breaker
    HMCP400R5C - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $3,163 CAD
    Sale
    hkd3400f - Eaton - Molded Case Circuit Breaker
    HKD3400 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $791 CAD
    Sale
    HMCP400W5 - Eaton Molded Case Circuit Breaker
    HMCP400W5 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $1,000 CAD
    Limited availability
    HMCP400N5 - Eaton Molded Case Circuit Breaker
    HMCP400N5 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $2,022 CAD
    Sale
    KD3400K - Eaton - Molded Case Circuit Breaker
    KD3400K - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $577 CAD
    Sale
    LGH3400FAG - Eaton - Molded Case Circuit Breaker
    LGH3400FAG - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $4,971 CAD
    LDL36400U33X - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LDL36400U33X - Square D - Molded Case Circuit Breaker
    Feed Thru - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    TJJ436Y400 - General Electric 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    TJJ436Y400 - GE - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    GE
    THJK436400WL - General Electric 400 Amp 3 Pole 600 Volt Thermal Magnetic Circuit Breaker
    THJK436400WL - GE - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    GE
    Sale
    KDB3400 - Eaton - Molded Case Circuit Breaker
    KDB3400 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $2,080 CAD
    SGLL3604L3XX - GE 400 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    SGLL3604L3XX - GE - Molded Case Circuit Breaker
    Bolt-On - 400 Amp - 3 Pole - 600 Volt
    GE
    HHJD63B400 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 400 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    JXD63S400A - Siemens - Molded Case Circuit Breaker
    Bolt-on - 400 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    JXD63B400 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 400 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    JXD62B400 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 400 Amp - 2 Pole - 600 Volt
    Siemens/ITE
    JXD23B400 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 400 Amp - 3 Pole - 240 Volt
    Siemens/ITE
    TJK4K - GE - Molded Case Circuit Breaker
    Bolt-On - 400 Amp - 600 Volt
    GE
    TJK436F000 - GE 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    TJK436F000 - GE - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    GE
    Sale
    LLA36400U31X - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LLA36400U31X - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $3,200 CAD
    Sale
    LJA36400U33X - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $2,440 CAD
    LC36400 - Square D - Molded Case Circuit Breaker
    LC36400 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Sale
    LA36400 - Square D - Molded Case Circuit Breaker
    LA36400 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $3,800 CAD
    Sale
    SGLA36AT0400 - GE - Molded Case Circuit Breaker
    SGLA36AT0400 - GE - Molded Case Circuit Breaker
    SGLA36AT0400 - GE - Molded Case Circuit Breaker
    Bolt-On - 400 Amp - 3 Pole - 600 Volt
    GE
    Save $990 CAD
    LGP36400CU33X - Square D - Molded Case Circuit Breaker
    LGP36400CU33X - Square D - Molded Case Circuit Breaker
    Bolt-On - 400A -3 Pole - 600 Volt
    Square D
    Sale
    MDL3400 - Eaton - Molded Case Circuit Breaker
    MDL3400 - Eaton - Molded Case Circuit Breaker
    Feed Thru - 400 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $4,527 CAD
    Sale
    LGS3400FAG - Eaton - Molded Case Circuit Breaker
    LGS3400FAG - Eaton - Molded Case Circuit Breaker
    Feed Thru - 400A - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $2,076.01 CAD
    LGS3400AAG - Eaton - Molded Case Circuit Breaker
    LGS3400AAG - Eaton - Molded Case Circuit Breaker
    Feed Thru - 400A - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
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