1 Pole Breakers

34 products

    Save on 1 pole, 1 phase circuit breakers. Free shipping on orders over $49. Easy returns. 1 year warranty.
    34 products
    QO145 - Square D 45 Amp Single Pole Circuit Breaker
    QO145 - Square D 45 Amp Single Pole Circuit Breaker
    QO145 - Square D - 45 Amp Circuit Breaker
    Plug-In - 45 Amp - 1 Pole - 120 Volt
    Schneider Electric
    Q145 - Siemens 45 Amp Single Pole Circuit Breaker
    Q145 - Siemens - 45 Amp Circuit Breaker
    Plug-In - 45 Amp - 1 Pole - 120 Volt
    Siemens / ITE
    ED61B045L - Siemens - Molded Case Circuit Breaker
    Feed Thru - 45 Amp - 1 Pole - 600 Volt
    Siemens/ITE
    Sale
    FD1045 - Eaton - Molded Case Circuit Breaker
    FD1045 (277V)- Eaton - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 277 Volt
    Eaton Cutler-Hammer
    Save $100 CAD
    EHD1045 - Eaton - Molded Case Circuit Breaker
    EHD1045 - Eaton - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 277 Volt
    Eaton Cutler-Hammer
    ED21B045L - Siemens - Molded Case Circuit Breaker
    ED21B045L - Siemens - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 120 Volt
    Siemens/ITE
    ED61B045 - Siemens - Moded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 600 Volt
    Siemens/ITE
    Sale
    EJB16045 - Square D 45 Amp 1 Pole 347 Volt Bolt-On Circuit Molded Case Breaker
    EJB16045 - Square D 45 Amp 1 Pole 347 Volt Bolt-On Circuit Molded Case Breaker
    EJB16045 - Square D - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 347 Volt
    Schneider Electric
    Save $57 CAD
    Sale
    EJB14045 - Square D 45 Amp 1 Pole 277 Volt Bolt-On Circuit Molded Case Breaker
    EJB14045 - Square D 45 Amp 1 Pole 277 Volt Bolt-On Circuit Molded Case Breaker
    EJB14045 - Square D - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 277 Volt
    Schneider Electric
    Save $57 CAD
    Sale
    EGB16045 - Square D 45 Amp 1 Pole 347 Volt Bolt-On Circuit Molded Case Breaker
    EGB16045 - Square D 45 Amp 1 Pole 347 Volt Bolt-On Circuit Molded Case Breaker
    EGB16045 - Square D - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 277 Volt
    Schneider Electric
    Save $57 CAD
    BQ1B045 - Siemens 45 Amp 1 Pole 120 Volt Bolt-On Molded Case Circuit Breaker
    BQ1B045 - Siemens - 45 Amp Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 120 Volt
    Siemens / ITE
    THQP145 - GE 45 Amp 1 Pole 240 Volt Plug-In Molded Case Circuit Breaker
    THQP145 - GE - Circuit Breaker
    Plug-In - 45 Amp - 1 Pole - 120 Volt
    GE
    THQL1145 - GE 45 Amp 1 Pole 120 Volt Plug-In Molded Case Circuit Breaker
    THQL1145 - GE - Circuit Breaker
    Plug-In - 45 Amp - 1 Pole - 120 Volt
    GE
    ED41B045 - Siemens - Molded Case Circuit Breaker
    ED41B045 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 120 Volt
    Siemens/ITE
    CQD145 - Siemens - Molded Case Circuit Breaker
    CQD145 - Siemens - Molded Case Circuit Breaker
    Feed-Thru - 45 Amp - 1 Pole - 277 Volt
    Siemens / ITE
    GBH1045 - Eaton Cutler-Hammer 45 Amp 1 Pole 600 Volt Bolt-On Circuit Breaker
    GBH1045 - Eaton - 45 Amp Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 600 Volt
    Eaton Cutler-Hammer
    Sold Out
    EGB14045 - Square D 45 Amp 1 Pole 277 Volt Bolt-On Circuit Molded Case Breaker
    EGB14045 - Square D 45 Amp 1 Pole 277 Volt Bolt-On Circuit Molded Case Breaker
    EGB14045 - Square D - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 277 Volt
    Schneider Electric
    Save $57 CAD
    FBV16TE045RV - GE 45 Amp 1 Pole 347 Volt Molded Case Circuit Breaker
    FBV16TE045RV - GE - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 600 Volt
    GE
    ED21B045 - Siemens 45 Amp 1 Pole 120 Volt Bolt-On Molded Case Circuit Breaker
    ED21B045 - Siemens - Molded Case Circuit Breaker
    Bolt On - 45 Amp - 1 Pole - 120 Volt
    Siemens/ITE
    NGB1B045B - Siemens - Molded Case Circuit Breaker
    NGB1B045B - Siemens - Molded Case Circuit Breaker
    Bolt On - 45 Amp - 1 Pole - 347 Volt
    Siemens / ITE
    ED41B045L - Siemens - Molded Case Circuit Breaker
    ED41B045L - Siemens - Molded Case Circuit Breaker
    Feed-Thru - 45 Amp - 1 Pole - 120 Volt
    Siemens/ITE
    B145H - Siemens 45 Amp 1 Pole 120 Volt Molded Case Circuit Breaker
    B145H - Siemens - 45 Amp 22kA Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 120 Volt
    Siemens / ITE
    BQD6145 - Siemens 45 Amp 1 Pole 347 Volt Bolt-On Molded Case Circuit Breaker
    BQD6145 - Siemens - 45 Amp Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 347 Volt
    Siemens / ITE
    BQD145 - Siemens 45 Amp 1 Pole 277 Volt Bolt-On Molded Case Circuit Breaker
    BQD145 - Siemens - 45 Amp Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 277 Volt
    Siemens / ITE
    TEY145 - GE - Molded Case Circuit Breaker
    TEY145 - GE - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 277 Volt
    GE
    QBHW1045 - Eaton Cutler-Hammer 45 Amp 1 Pole 240 Volt Molded Case Circuit Breaker
    QBHW1045 - Eaton - 45 Amp Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 240 Volt
    Eaton Cutler-Hammer
    Sale
    FD1045L - Eaton - Molded Case Circuit Breaker
    FD1045L - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 45 Amp - 1 Pole - 277 Volt
    Eaton Cutler-Hammer
    Save $100 CAD
    EHD1045L - Eaton - Molded Case Circuit Breaker
    EHD1045L - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 45 Amp - 1 Pole - 277 Volt
    Eaton Cutler-Hammer
    QOU145 - Square D 45 Amp 1 Pole 120 Volt Miniature Circuit Breaker
    QOU145 - Square D - 45 Amp Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 120 Volt
    Schneider Electric
    Sale
    EDB16045 - Square D 45 Amp 1 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    EDB16045 - Square D - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 347 Volt
    Schneider Electric
    Save $180 CAD
    Sold Out
    EDB14045 - Square D 45 Amp 1 Pole 277 Volt Bolt-On Molded Case Circuit Breaker
    EDB14045 - Square D - Molded Case Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 277 Volt
    Schneider Electric
    Sale
    BAB1045 - Eaton - 45 Amp Circuit Breaker
    BAB1045 - Eaton - 45 Amp Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 120 Volt
    Eaton Cutler-Hammer
    Save $9.60 CAD
    B145 - Siemens 45 Amp Single Pole Bolt-On Circuit Breaker
    B145 - Siemens - 45 Amp Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 120 Volt
    Siemens / ITE
    QOB145 - Square D 45 Amp Single Pole Bolt-On Circuit Breaker
    QOB145 - Square D - 45 Amp Circuit Breaker
    Bolt-On - 45 Amp - 1 Pole - 120 Volt
    Schneider Electric
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