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.

  • B1E3D40 Noark Supplementary Protectors, B1E UL 1077, 3P, D Curve, 40A, 5 kA, 480 Vac

    B1E3D40

    $38.04
    $42.27
    Supplementary Protectors, B1E UL 1077, 3P, D Curve, 40A, 5 kA, 480 Vac
  • B1E3D5 Noark Supplementary Protectors, B1E UL 1077, 3P, D Curve, 5A, 5 kA, 480 Vac

    B1E3D5

    $38.04
    $42.27
    Supplementary Protectors, B1E UL 1077, 3P, D Curve, 5A, 5 kA, 480 Vac
  • B1E3D50 Noark Supplementary Protectors, B1E UL 1077, 3P, D Curve, 50A, 5 kA, 480 Vac

    B1E3D50

    $38.04
    $42.27
    Supplementary Protectors, B1E UL 1077, 3P, D Curve, 50A, 5 kA, 480 Vac
  • B1E3D6 Noark Supplementary Protectors, B1E UL 1077, 3P, D Curve, 6A, 5 kA, 480 Vac

    B1E3D6

    $38.04
    $42.27
    Supplementary Protectors, B1E UL 1077, 3P, D Curve, 6A, 5 kA, 480 Vac
  • B1E3D60 Noark Supplementary Protectors, B1E UL 1077, 3P, D Curve, 60A, 5 kA, 480 Vac

    B1E3D60

    $38.04
    $42.27
    Supplementary Protectors, B1E UL 1077, 3P, D Curve, 60A, 5 kA, 480 Vac
  • B1E3D63 Noark Supplementary Protectors, B1E UL 1077, 3P, D Curve, 63A, 5 kA, 480 Vac

    B1E3D63

    $38.04
    $42.27
    Supplementary Protectors, B1E UL 1077, 3P, D Curve, 63A, 5 kA, 480 Vac
  • B1E3D8 Noark Supplementary Protectors, B1E UL 1077, 3P, D Curve, 8A, 5 kA, 480 Vac

    B1E3D8

    $38.04
    $42.27
    Supplementary Protectors, B1E UL 1077, 3P, D Curve, 8A, 5 kA, 480 Vac
  • B1E3P100 Noark Supplementary Protectors, B1E UL 1077, 3P, 100A, 5 kA, 480V/277 Vac

    B1E3P100

    $45.34
    $50.38
    Supplementary Protectors, B1E UL 1077, 3P, 100A, 5 kA, 480V/277 Vac
  • B1E3P125 Noark Supplementary Protectors, B1E UL 1077, 3P, 125A, 5 kA, 480V/277 Vac

    B1E3P125

    $45.34
    $50.38
    Supplementary Protectors, B1E UL 1077, 3P, 125A, 5 kA, 480V/277 Vac
  • B1E3P80 Noark Supplementary Protectors, B1E UL 1077, 3P, 80A, 5 kA, 480V/277 Vac

    B1E3P80

    $45.34
    $50.38
    Supplementary Protectors, B1E UL 1077, 3P, 80A, 5 kA, 480V/277 Vac
  • B1E4B1 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 1A, 5 kA, 480 Vac

    B1E4B1

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 1A, 5 kA, 480 Vac
  • B1E4B1.6 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 1.6A, 5 kA, 480 Vac

    B1E4B1.6

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 1.6A, 5 kA, 480 Vac
  • B1E4B10 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 10A, 5 kA, 480 Vac

    B1E4B10

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 10A, 5 kA, 480 Vac
  • B1E4B13 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 13A, 5 kA, 480 Vac

    B1E4B13

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 13A, 5 kA, 480 Vac
  • B1E4B15 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 15A, 5 kA, 480 Vac

    B1E4B15

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 15A, 5 kA, 480 Vac
  • B1E4B16 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 16A, 5 kA, 480 Vac

    B1E4B16

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 16A, 5 kA, 480 Vac
  • B1E4B2 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 2A, 5 kA, 480 Vac

    B1E4B2

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 2A, 5 kA, 480 Vac
  • B1E4B20 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 20A, 5 kA, 480 Vac

    B1E4B20

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 20A, 5 kA, 480 Vac
  • B1E4B25 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 25A, 5 kA, 480 Vac

    B1E4B25

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 25A, 5 kA, 480 Vac
  • B1E4B3 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 3A, 5 kA, 480 Vac

    B1E4B3

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 3A, 5 kA, 480 Vac
  • B1E4B30 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 30A, 5 kA, 480 Vac

    B1E4B30

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 30A, 5 kA, 480 Vac
  • B1E4B32 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 32A, 5 kA, 480 Vac

    B1E4B32

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 32A, 5 kA, 480 Vac
  • B1E4B35 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 35A, 5 kA, 480 Vac

    B1E4B35

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 35A, 5 kA, 480 Vac
  • B1E4B4 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 4A, 5 kA, 480 Vac

    B1E4B4

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 4A, 5 kA, 480 Vac
  • B1E4B40 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 40A, 5 kA, 480 Vac

    B1E4B40

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 40A, 5 kA, 480 Vac
  • B1E4B5 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 5A, 5 kA, 480 Vac

    B1E4B5

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 5A, 5 kA, 480 Vac
  • B1E4B50 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 50A, 5 kA, 480 Vac

    B1E4B50

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 50A, 5 kA, 480 Vac
  • B1E4B6 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 6A, 5 kA, 480 Vac

    B1E4B6

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 6A, 5 kA, 480 Vac
  • B1E4B60 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 60A, 5 kA, 480 Vac

    B1E4B60

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 60A, 5 kA, 480 Vac
  • B1E4B63 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 63A, 5 kA, 480 Vac

    B1E4B63

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 63A, 5 kA, 480 Vac
  • B1E4B8 Noark Supplementary Protectors, B1E UL 1077, 4P, B Curve, 8A, 5 kA, 480 Vac

    B1E4B8

    $48.22
    $53.58
    Supplementary Protectors, B1E UL 1077, 4P, B Curve, 8A, 5 kA, 480 Vac
  • B1E4C1 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 1A, 5 kA, 480 Vac

    B1E4C1

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 1A, 5 kA, 480 Vac
  • B1E4C1.6 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 1.6A, 5 kA, 480 Vac

    B1E4C1.6

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 1.6A, 5 kA, 480 Vac
  • B1E4C10 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 10A, 5 kA, 480 Vac

    B1E4C10

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 10A, 5 kA, 480 Vac
  • B1E4C13 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 13A, 5 kA, 480 Vac

    B1E4C13

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 13A, 5 kA, 480 Vac
  • B1E4C15 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 15A, 5 kA, 480 Vac

    B1E4C15

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 15A, 5 kA, 480 Vac
  • B1E4C16 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 16A, 5 kA, 480 Vac

    B1E4C16

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 16A, 5 kA, 480 Vac
  • B1E4C2 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 2A, 5 kA, 480 Vac

    B1E4C2

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 2A, 5 kA, 480 Vac
  • B1E4C20 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 20A, 5 kA, 480 Vac

    B1E4C20

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 20A, 5 kA, 480 Vac
  • B1E4C25 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 25A, 5 kA, 480 Vac

    B1E4C25

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 25A, 5 kA, 480 Vac
  • B1E4C3 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 3A, 5 kA, 480 Vac

    B1E4C3

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 3A, 5 kA, 480 Vac
  • B1E4C30 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 30A, 5 kA, 480 Vac

    B1E4C30

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 30A, 5 kA, 480 Vac
  • B1E4C32 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 32A, 5 kA, 480 Vac

    B1E4C32

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 32A, 5 kA, 480 Vac
  • B1E4C35 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 35A, 5 kA, 480 Vac

    B1E4C35

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 35A, 5 kA, 480 Vac
  • B1E4C4 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 4A, 5 kA, 480 Vac

    B1E4C4

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 4A, 5 kA, 480 Vac
  • B1E4C40 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 40A, 5 kA, 480 Vac

    B1E4C40

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 40A, 5 kA, 480 Vac
  • B1E4C5 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 5A, 5 kA, 480 Vac

    B1E4C5

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 5A, 5 kA, 480 Vac
  • B1E4C50 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 50A, 5 kA, 480 Vac

    B1E4C50

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 50A, 5 kA, 480 Vac