Circuit Breakers

A circuit breaker will interrupt the flow of current in an electrical circuit, safeguarding surrounding electrical components and wiring by preventing circuit overloads and short circuits.

a.k.a. MCB, MCCB, molded case breaker, supplementary protection, UL1077, UL489, UL508, MMP, manual motor protector

 

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    noark-b1n-2pole_78__19738.jpg
    Available Now!

    Noark

    B1N2C6

    1000095

    Miniature Circuit Breaker, UL489, 2-Poles, C-Curve, 6A, 240VAC/125VDC, 10kA, Box Lugs

    $36.87
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    $36.87
    Add to Cart
  • Available Now!
    noark_b1e_3pole_39__65066.jpg
    Available Now!

    Noark

    B1E3D50

    1000606

    Miniature Circuit Breaker, UL1077, 3-Poles, D-Curve, 50A, 5kA, 480Y/277VAC, Supplementary Protection

    $43.11
    Add to Cart
    $43.11
    Add to Cart
  • Available Now!
    noark_b1e_3pole_36__25329.jpg
    Available Now!

    Noark

    B1E3P80

    1000678

    Miniature Circuit Breaker, UL1077, 3-Poles, 80A, 5kA, 480Y/277VAC, Supplementary Protection

    $51.38
    Add to Cart
    $51.38
    Add to Cart
  • Available Now!
    noark_b1e_1pole_30__07213.jpg
    Available Now!

    Noark

    B1E1C20

    1000453

    Miniature Circuit Breaker, UL1077, 1-Pole, C-Curve, 20A, 5kA, 277VAC, Supplementary Protection

    $14.30
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    $14.30
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  • Available Now!
    noark-b1n-2pole_57__96460.jpg
    Available Now!

    Noark

    B1N2B35

    1000083 | Limited Stock Savings: 2 units available at this price

    Miniature Circuit Breaker, UL489, 2-Poles, B-Curve, 35A, 240VAC/125VDC, 10kA, Box Lugs

    $34.45
    Add to Cart
    $34.45
    Add to Cart
  • Available Now!
    noark-b1-nha-1pole-edit_70__34401.jpg
    Available Now!

    Noark

    B1N1C30

    1000037, Replacement for B1NQ1C30

    Miniature Circuit Breaker, UL489, 1-Pole, C-Curve, 30A, 240VAC/60VDC, 10kA, Box Lugs

    $17.57
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    $17.57
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  • Available Now!
    noark_b1e_2pole_47__20170.jpg
    Available Now!

    Noark

    B1E2D40

    1000542 | Limited Stock Savings: 1 unit available at this price

    Miniature Circuit Breaker, UL1077, 2-Poles, D-Curve, 40A, 5kA, 480Y/277VAC, Supplementary Protection

    $25.85
    Add to Cart
    $25.85
    Add to Cart
  • Available Now!
    noark_b1e_2pole_33__44101.jpg
    Available Now!

    Noark

    B1E2B50

    1000501, Advertised Pricing Limited to MWA Stock! | Limited Stock Savings: 11 units available at this price

    Miniature Circuit Breaker, UL1077, 2-Poles, B-Curve, 50A, 5kA, 480Y/277VAC, Supplementary Protection

    $14.41
    Add to Cart
    $14.41
    Add to Cart
  • Available Now!
    lsis-bk63h-1p_3__09159.jpg
    Available Now!

    LS Electric

    0626035663

    626035663, BK63H 1P C1A 6kA 277VAC UL1077

    MCB, UL1077, 1-Pole, C-Curve, 1 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker

    $11.05
    Add to Cart
    $11.05
    Add to Cart
  • Available Now!
    lsis-bk63h-1p-489__41570.jpg
    Available Now!

    LS Electric

    0626050863

    626050863, BK63HU 1P D15A 10kA 277VAC UL489

    MCB, UL489, 1-Pole, D-Curve, 15 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker

    $25.91
    Add to Cart
    $25.91
    Add to Cart

A circuit breaker will interrupt the flow of current in an electrical circuit, safeguarding surrounding electrical components and wiring by preventing circuit overloads and short circuits.

a.k.a. MCB, MCCB, molded case breaker, supplementary protection, UL1077, UL489, UL508, MMP, manual motor protector

 

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