40 Amp Breakers

378 products

    378 products
    QOB240GFI - Square D 40 Amp Double Pole GFCI Bolt-On Circuit Breaker
    QOB240GFI - Square D - 40 Amp GFCI Circuit Breaker
    Bolt-On - 40 Amp - 2 Pole - 240 Volt
    Schneider Electric
    NB40 - Federal Pioneer 40 Amp Single Pole Bolt-On Circuit Breaker
    NB40 - Federal Pioneer - 40 Amp Circuit Breaker
    Bolt-On - 40 Amp - 1 Pole - 120 Volt
    Federal Pioneer
    QE240 - Siemens 40 Amp 2 Pole 240 Volt Ground Fault Equipment Protection Circuit Breaker
    QE240 - Siemens - 40 Amp GFEP Circuit Breaker
    Plug-In - 40 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    Sale
    HFD3040 - Eaton - Moded Case Circuit Breaker
    HFD3040 - Eaton - Molded Case Circuit Breaker
    Feed Thru - 40 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $1,580.19 CAD
    Sale
    BJA36040 - Square D 40 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    BJA36040 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 40 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $310 CAD
    THQB1140 - GE 40 Amp Single Pole Bolt-On Circuit Breaker
    THQB1140 - GE - 40 Amp Circuit Breaker
    Bolt-On - 40 Amp - 1 Pole - 120 Volt
    GE
    QBHW1040 - Eaton Cutler-Hammer 40 Amp 1 Pole 240 Volt Molded Case Circuit Breaker
    QBHW1040 - Eaton - 40 Amp Circuit Breaker
    Bolt-On - 40 Amp - 1 Pole - 240 Volt
    Eaton Cutler-Hammer
    GFEP240 - Eaton Cutler-Hammer 40 Amp Ground Fault Equipment Protection Circuit Breaker
    GFEP240 - Eaton - 30 mA GFEP Circuit Breaker
    Plug-In - 40 Amp - 2 Pole - 240 Volt
    Eaton Cutler-Hammer
    Sale
    HDA36040 - Square D 40 Amp 3 Pole 600 Volt Plug-In Molded Case Circuit Breaker
    HDA36040 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 40 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $460 CAD
    BQ1B040 - Siemens 40 Amp Single Pole 120V BQ Bolt-On Circuit Breaker
    BQ1B050 - Siemens - 50 Amp 120V BQ Circuit Breaker
    Bolt-On - 40 Amp - 1 Pole - 120 Volt
    Siemens / ITE
    Sale
    EGB36040 - Square D 40 Amp 3 Pole 600 Volt Bolt-On Circuit Breaker
    EGB36040 - Square D 40 Amp 3 Pole 600 Volt Bolt-On Circuit Breaker
    EGB36040 - Square D - Molded Case Circuit Breaker
    Bolt-On - 40 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $510 CAD
    CED63B040 - Siemens 40 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    CED63B040 - Siemens - Molded Case Circuit Breaker
    Bolt On - 40 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    Limited availability
    8910DPA44V02 - Square D 40 Amp 4 Pole 120 Volt Definite Purpose Contactor
    8910DPA44V02 - Square D - 40 Amp Definite Purpose Contactor
    40 Amp - 4 Pole - 120 Volt
    Schneider Electric
    Limited availability
    FDB2040 - Eaton - Molded Case Circuit Breaker
    FDB2040 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 40 Amp - 2 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $109 CAD
    QB2040GF - Eaton Cutler-Hammer 40 Amp Double Pole Ground Fault Bolt-On Circuit Breaker
    QB2040GF - Eaton - 40 Amp Ground Fault Circuit Breaker
    Bolt-On - 40 Amp - 2 Pole - 240 Volt
    Eaton Cutler-Hammer
    Sale
    QB2040EP - Eaton Cutler-Hammer 40 Amp 2 Pole 240 Volt Ground Fault Circuit Breaker
    QB2040EP - Eaton - 40 Amp GFEP Circuit Breaker
    Bolt-On - 40 Amp - 2 Pole - 240 Volt
    Eaton Cutler-Hammer
    Save $622.01 CAD
    Limited availability
    EJB36040 - Square D 40 Amp 3 Pole 600 Volt Bolt-On Circuit Breaker
    EJB36040 - Square D 40 Amp 3 Pole 600 Volt Bolt-On Circuit Breaker
    EJB36040 - Square D - Molded Case Circuit Breaker
    Bolt-On - 40 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $750 CAD
    ED43B040 - Siemens - Molded Case Circuit Breaker
    ED43B040 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 40 Amp - 3 Pole - 480 Volt
    Siemens/ITE
    Limited availability
    QCGFEP2040 - Eaton - Molded Case Circuit Breaker
    QCGFEP2040 - Eaton - GFEP Circuit Breaker
    Feed-Thru - 40 Amp - 2 Pole - 240 Volt
    Eaton Cutler-Hammer
    BQ1B040 - Siemens 40 Amp Single Pole 120V BQ Bolt-On Circuit Breaker
    BQ1B040 - Siemens - 40 Amp Circuit Breaker
    Bolt-On - 40 Amp - 1 Pole - 120 Volt
    Siemens / ITE
    TEB122040WL - GE 40 Amp 2 Pole 240 Volt Molded Case Circuit Breaker General Electric Lug
    TEB122040WL - GE - Molded Case Circuit Breaker
    Feed-Thru - 40 Amp - 2 Pole - 240 Volt
    GE
    GFTCB140 - Eaton Cutler-Hammer 40 Amp 1 Pole 120 Volt Molded Case Circuit Breaker
    GFTCB140 - Eaton - 40 Amp Molded Case Circuit Breaker
    Plug-In - 40 Amp - 1 Pole - 120 Volt
    Eaton Cutler-Hammer
    Sale
    FDC3040L - Eaton - MoldedCase Circuit Breakers
    FDC3040L - Eaton - MoldedCase Circuit Breakers
    Feed Thru - 40 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $340 CAD
    BAB3040HS - Eaton - 40 Amp Shunt Trip Breaker
    Bolt-On - 40 Amp - 3 Pole - 240 Volt
    Eaton Cutler-Hammer
    QOU340 - Square D 40 Amp 3 Pole 240 Volt Miniature Circuit Breaker
    QOU340 - Square D - 40 Amp Circuit Breaker
    Bolt-On - 40 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Sale
    HLA36040 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 40 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $910 CAD
    Sale
    HJL36040 - Square D - Molded Case Circuit Breaker
    HJL36040 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 40 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $350 CAD
    HHED63B040 - Siemens - Molded Case Circuit Breaker
    HHED63B040 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 40 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    ED42B040 - Siemens - Molded Case Circuit Breaker
    Bolt On - 40 Amp - 2 Pole - 480 Volt
    Siemens/ITE
    ED63B040L - Siemens - Molded Case Circuit Breaker
    ED63B040L - Siemens - Molded Case Circuit Breaker
    Feed Thru - 40 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    BE240 - Siemens 40 Amp 2 Pole 240 Volt Ground Fault Equipment Protection Circuit Breaker
    BE240 - Siemens - 40 Amp GFEP Circuit Breaker
    Bolt-On - 40 Amp - 2 Pole - 240 Volt
    Siemens / ITE
    Sale
    FDC3040 - Eaton - MoldedCase Circuit Breakers
    FDC3040 - Eaton - MoldedCase Circuit Breakers
    Bolt-On - 40 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $340 CAD
    Sale
    FDB3040 - Eaton - Molded Case Circuit Breaker
    FDB3040 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 40 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $140 CAD
    Sale
    FD2040 - Eaton - Molded Case Circuit Breaker
    FD2040 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 40 Amp - 2 Pole - 600 Volt
    Eaton Cutler-Hammer
    Save $160 CAD
    592-EUTB - Allen-Bradley 40 Amp 3 Pole Overload Relay
    592-EUTB - Allen-Bradley - 40 Amp Overload Relay
    40 Amp - 3 Pole
    Allen-Bradley
    Sale
    EJB26040 - Square D 40 Amp 2 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    EJB26040 - Square D 40 Amp 2 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    EJB26040 - Square D - Molded Case Circuit Breaker
    Bolt-On - 40 Amp - 2 Pole - 600 Volt
    Schneider Electric
    Save $642 CAD
    Limited availability
    QCGFT2040 - Eaton - Molded Case Circuit Breaker
    QCGFT2040 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 40 Amp - 2 Pole - 240 Volt
    Eaton Cutler-Hammer
    THED136040WL - GE - Molded Case Circuit Breaker
    Feed-Thru - 40 Amp - 3 Pole - 600 Volt
    GE
    QCGF2040 - Eaton - Circuit Breaker
    QCGF2040 - Eaton - GFCI Circuit Breaker
    Feed Thru - 40 Amp - 2 Pole - 120 Volt
    Eaton Cutler-Hammer
    QC3040H - Eaton - Circuit Breaker
    QC3040H - Eaton - Circuit Breaker
    Feed Thru - 40 Amp - 3 Pole - 9 Volt
    Eaton Cutler-Hammer
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