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.

  • 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
  • B1E4C6 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 6A, 5 kA, 480 Vac

    B1E4C6

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 6A, 5 kA, 480 Vac
  • B1E4C60 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 60A, 5 kA, 480 Vac

    B1E4C60

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 60A, 5 kA, 480 Vac
  • B1E4C63 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 63A, 5 kA, 480 Vac

    B1E4C63

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 63A, 5 kA, 480 Vac
  • B1E4C8 Noark Supplementary Protectors, B1E UL 1077, 4P, C Curve, 8A, 5 kA, 480 Vac

    B1E4C8

    $49.57
    $55.08
    Supplementary Protectors, B1E UL 1077, 4P, C Curve, 8A, 5 kA, 480 Vac
  • B1E4D1 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 1A, 5 kA, 480 Vac

    B1E4D1

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 1A, 5 kA, 480 Vac
  • B1E4D1.6 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 1.6A, 5 kA, 480 Vac

    B1E4D1.6

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 1.6A, 5 kA, 480 Vac
  • B1E4D10 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 10A, 5 kA, 480 Vac

    B1E4D10

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 10A, 5 kA, 480 Vac
  • B1E4D13 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 13A, 5 kA, 480 Vac

    B1E4D13

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 13A, 5 kA, 480 Vac
  • B1E4D15 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 15A, 5 kA, 480 Vac

    B1E4D15

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 15A, 5 kA, 480 Vac
  • B1E4D16 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 16A, 5 kA, 480 Vac

    B1E4D16

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 16A, 5 kA, 480 Vac
  • B1E4D2 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 2A, 5 kA, 480 Vac

    B1E4D2

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 2A, 5 kA, 480 Vac
  • B1E4D20 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 20A, 5 kA, 480 Vac

    B1E4D20

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 20A, 5 kA, 480 Vac
  • B1E4D25 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 25A, 5 kA, 480 Vac

    B1E4D25

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 25A, 5 kA, 480 Vac
  • B1E4D3 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 3A, 5 kA, 480 Vac

    B1E4D3

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 3A, 5 kA, 480 Vac
  • B1E4D30 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 30A, 5 kA, 480 Vac

    B1E4D30

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 30A, 5 kA, 480 Vac
  • B1E4D32 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 32A, 5 kA, 480 Vac

    B1E4D32

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 32A, 5 kA, 480 Vac
  • B1E4D35 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 35A, 5 kA, 480 Vac

    B1E4D35

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 35A, 5 kA, 480 Vac
  • B1E4D4 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 4A, 5 kA, 480 Vac

    B1E4D4

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 4A, 5 kA, 480 Vac
  • B1E4D40 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 40A, 5 kA, 480 Vac

    B1E4D40

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 40A, 5 kA, 480 Vac
  • B1E4D5 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 5A, 5 kA, 480 Vac

    B1E4D5

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 5A, 5 kA, 480 Vac
  • B1E4D50 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 50A, 5 kA, 480 Vac

    B1E4D50

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 50A, 5 kA, 480 Vac
  • B1E4D6 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 6A, 5 kA, 480 Vac

    B1E4D6

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 6A, 5 kA, 480 Vac
  • B1E4D60 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 60A, 5 kA, 480 Vac

    B1E4D60

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 60A, 5 kA, 480 Vac
  • B1E4D63 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 63A, 5 kA, 480 Vac

    B1E4D63

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 63A, 5 kA, 480 Vac
  • B1E4D8 Noark Supplementary Protectors, B1E UL 1077, 4P, D Curve, 8A, 5 kA, 480 Vac

    B1E4D8

    $50.65
    $56.28
    Supplementary Protectors, B1E UL 1077, 4P, D Curve, 8A, 5 kA, 480 Vac
  • B1E4P100 Noark Supplementary Protectors, B1E UL 1077, 4P, 100A, 5 kA, 480V/277 Vac

    B1E4P100

    $59.94
    $66.60
    Supplementary Protectors, B1E UL 1077, 4P, 100A, 5 kA, 480V/277 Vac
  • B1E4P125 Noark Supplementary Protectors, B1E UL 1077, 4P, 125A, 5 kA, 480V/277 Vac

    B1E4P125

    $59.94
    $66.60
    Supplementary Protectors, B1E UL 1077, 4P, 125A, 5 kA, 480V/277 Vac
  • B1E4P80 Noark Supplementary Protectors, B1E UL 1077, 4P, 80A, 5 kA, 480V/277 Vac

    B1E4P80

    $59.94
    $66.60
    Supplementary Protectors, B1E UL 1077, 4P, 80A, 5 kA, 480V/277 Vac
  • B1H1B0.5 Noark Miniature Circuit Breakers, B1H UL 489, 1P, B Curve, 0.5A, 10 kA, 277 Vac, Box Lug

    B1H1B0.5

    $19.92
    $22.13
    Miniature Circuit Breakers, B1H UL 489, 1P, B Curve, 0.5A, 10 kA, 277 Vac, Box Lug
  • B1H1B1 Noark Miniature Circuit Breakers, B1H UL 489, 1P, B Curve, 1A, 10 kA, 277 Vac, Box Lug

    B1H1B1

    $19.92
    $22.13
    Miniature Circuit Breakers, B1H UL 489, 1P, B Curve, 1A, 10 kA, 277 Vac, Box Lug
  • B1H1B1.6 Noark Miniature Circuit Breakers, B1H UL 489, 1P, B Curve, 1.6A, 10 kA, 277 Vac, Box Lug

    B1H1B1.6

    $19.92
    $22.13
    Miniature Circuit Breakers, B1H UL 489, 1P, B Curve, 1.6A, 10 kA, 277 Vac, Box Lug
  • B1H1B10 Noark Miniature Circuit Breakers, B1H UL 489, 1P, B Curve, 10A, 10 kA, 277 Vac, Box Lug

    B1H1B10

    $19.92
    $22.13
    Miniature Circuit Breakers, B1H UL 489, 1P, B Curve, 10A, 10 kA, 277 Vac, Box Lug