Circuit Breakers

Circuit breakers are an essential component of any electrical system, protecting against power surges, short circuits, and other electrical hazards. They are also designed to trip when the electrical current exceeds a certain level, preventing damage to the electrical system. The breaker should be able to handle the amount of electrical current that flows through your system, so it's important to choose a breaker that is appropriately sized. A breaker that is too small won't be able to protect your electrical system, while a breaker that is too large will be more expensive and difficult to install.

  • B1E1D10 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 10A, 5 kA, 277 Vac / 60 Vdc

    B1E1D10

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 10A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D13 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 13A, 5 kA, 277 Vac / 60 Vdc

    B1E1D13

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 13A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D15 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 15A, 5 kA, 277 Vac / 60 Vdc

    B1E1D15

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 15A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D16 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 16A, 5 kA, 277 Vac / 60 Vdc

    B1E1D16

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 16A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D2 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 2A, 5 kA, 277 Vac / 60 Vdc

    B1E1D2

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 2A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D20 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 20A, 5 kA, 277 Vac / 60 Vdc

    B1E1D20

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 20A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D25 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 25A, 5 kA, 277 Vac / 60 Vdc

    B1E1D25

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 25A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D3 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 3A, 5 kA, 277 Vac / 60 Vdc

    B1E1D3

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 3A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D30 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 30A, 5 kA, 277 Vac / 60 Vdc

    B1E1D30

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 30A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D32 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 32A, 5 kA, 277 Vac / 60 Vdc

    B1E1D32

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 32A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D35 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 35A, 5 kA, 277 Vac / 60 Vdc

    B1E1D35

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 35A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D4 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 4A, 5 kA, 277 Vac / 60 Vdc

    B1E1D4

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 4A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D40 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 40A, 5 kA, 277 Vac / 60 Vdc

    B1E1D40

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 40A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D5 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 5A, 5 kA, 277 Vac / 60 Vdc

    B1E1D5

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 5A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D50 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 50A, 5 kA, 277 Vac / 60 Vdc

    B1E1D50

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 50A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D6 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 6A, 5 kA, 277 Vac / 60 Vdc

    B1E1D6

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 6A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D60 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 60A, 5 kA, 277 Vac / 60 Vdc

    B1E1D60

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 60A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D63 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 63A, 5 kA, 277 Vac / 60 Vdc

    B1E1D63

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 63A, 5 kA, 277 Vac / 60 Vdc
  • B1E1D8 Noark Supplementary Protectors, B1E UL 1077, 1P, D Curve, 8A, 5 kA, 277 Vac / 60 Vdc

    B1E1D8

    $12.62
    $14.02
    Supplementary Protectors, B1E UL 1077, 1P, D Curve, 8A, 5 kA, 277 Vac / 60 Vdc
  • B1E1P100 Noark Supplementary Protectors, B1E UL 1077, 1P, 100A, 5 kA, 480V/277 Vac

    B1E1P100

    $14.60
    $16.22
    Supplementary Protectors, B1E UL 1077, 1P, 100A, 5 kA, 480V/277 Vac
  • B1E1P125 Noark Supplementary Protectors, B1E UL 1077, 1P, 125A, 5 kA, 480V/277 Vac

    B1E1P125

    $14.60
    $16.22
    Supplementary Protectors, B1E UL 1077, 1P, 125A, 5 kA, 480V/277 Vac
  • B1E1P80 Noark Supplementary Protectors, B1E UL 1077, 1P, 80A, 5 kA, 480V/277 Vac

    B1E1P80

    $14.60
    $16.22
    Supplementary Protectors, B1E UL 1077, 1P, 80A, 5 kA, 480V/277 Vac
  • B1E2B1 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 1A, 5 kA, 480 Vac / 125 Vdc

    B1E2B1

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 1A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B1.6 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 1.6A, 5 kA, 480 Vac / 125 Vdc

    B1E2B1.6

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 1.6A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B10 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 10A, 5 kA, 480 Vac / 125 Vdc

    B1E2B10

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 10A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B13 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 13A, 5 kA, 480 Vac / 125 Vdc

    B1E2B13

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 13A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B15 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 15A, 5 kA, 480 Vac / 125 Vdc

    B1E2B15

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 15A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B16 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 16A, 5 kA, 480 Vac / 125 Vdc

    B1E2B16

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 16A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B2 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 2A, 5 kA, 480 Vac / 125 Vdc

    B1E2B2

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 2A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B20 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 20A, 5 kA, 480 Vac / 125 Vdc

    B1E2B20

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 20A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B25 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 25A, 5 kA, 480 Vac / 125 Vdc

    B1E2B25

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 25A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B3 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 3A, 5 kA, 480 Vac / 125 Vdc

    B1E2B3

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 3A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B30 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 30A, 5 kA, 480 Vac / 125 Vdc

    B1E2B30

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 30A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B32 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 32A, 5 kA, 480 Vac / 125 Vdc

    B1E2B32

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 32A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B35 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 35A, 5 kA, 480 Vac / 125 Vdc

    B1E2B35

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 35A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B4 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 4A, 5 kA, 480 Vac / 125 Vdc

    B1E2B4

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 4A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B40 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 40A, 5 kA, 480 Vac / 125 Vdc

    B1E2B40

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 40A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B5 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 5A, 5 kA, 480 Vac / 125 Vdc

    B1E2B5

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 5A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B50 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 50A, 5 kA, 480 Vac / 125 Vdc

    B1E2B50

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 50A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B6 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 6A, 5 kA, 480 Vac / 125 Vdc

    B1E2B6

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 6A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B60 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 60A, 5 kA, 480 Vac / 125 Vdc

    B1E2B60

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 60A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B63 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 63A, 5 kA, 480 Vac / 125 Vdc

    B1E2B63

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 63A, 5 kA, 480 Vac / 125 Vdc
  • B1E2B8 Noark Supplementary Protectors, B1E UL 1077, 2P, B Curve, 8A, 5 kA, 480 Vac / 125 Vdc

    B1E2B8

    $24.34
    $27.04
    Supplementary Protectors, B1E UL 1077, 2P, B Curve, 8A, 5 kA, 480 Vac / 125 Vdc
  • B1E2C1 Noark Supplementary Protectors, B1E UL 1077, 2P, C Curve, 1A, 5 kA, 480 Vac / 125 Vdc

    B1E2C1

    $25.24
    $28.04
    Supplementary Protectors, B1E UL 1077, 2P, C Curve, 1A, 5 kA, 480 Vac / 125 Vdc
  • B1E2C1.6 Noark Supplementary Protectors, B1E UL 1077, 2P, C Curve, 1.6A, 5 kA, 480 Vac / 125 Vdc

    B1E2C1.6

    $25.24
    $28.04
    Supplementary Protectors, B1E UL 1077, 2P, C Curve, 1.6A, 5 kA, 480 Vac / 125 Vdc
  • B1E2C10 Noark Supplementary Protectors, B1E UL 1077, 2P, C Curve, 10A, 5 kA, 480 Vac / 125 Vdc

    B1E2C10

    $25.24
    $28.04
    Supplementary Protectors, B1E UL 1077, 2P, C Curve, 10A, 5 kA, 480 Vac / 125 Vdc
  • B1E2C13 Noark Supplementary Protectors, B1E UL 1077, 2P, C Curve, 13A, 5 kA, 480 Vac / 125 Vdc

    B1E2C13

    $25.24
    $28.04
    Supplementary Protectors, B1E UL 1077, 2P, C Curve, 13A, 5 kA, 480 Vac / 125 Vdc
  • B1E2C15 Noark Supplementary Protectors, B1E UL 1077, 2P, C Curve, 15A, 5 kA, 480 Vac / 125 Vdc

    B1E2C15

    $25.24
    $28.04
    Supplementary Protectors, B1E UL 1077, 2P, C Curve, 15A, 5 kA, 480 Vac / 125 Vdc