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.

  • B1B2C40 Noark B1B 2P C curve 40A 500Vdc 10kA UL489 SC

    B1B2C40

    $60.65
    $67.39
    B1B 2P C curve 40A 500Vdc 10kA UL489 SC
  • B1B2C50 Noark B1B 2P C curve 50A 500Vdc 10kA UL489 SC

    B1B2C50

    $60.65
    $67.39
    B1B 2P C curve 50A 500Vdc 10kA UL489 SC
  • B1B2C63 Noark B1B 2P C curve 63A 500Vdc 10kA UL489 SC

    B1B2C63

    $60.65
    $67.39
    B1B 2P C curve 63A 500Vdc 10kA UL489 SC
  • B1B4C25 Noark B1B 4P C curve 25A 1000Vdc 10kA UL489 SC

    B1B4C25

    $109.18
    $121.31
    B1B 4P C curve 25A 1000Vdc 10kA UL489 SC
  • B1B4C32 Noark B1B 4P C curve 32A 1000Vdc 10kA UL489 SC

    B1B4C32

    $109.18
    $121.31
    B1B 4P C curve 32A 1000Vdc 10kA UL489 SC
  • B1B4C40 Noark B1B 4P C curve 40A 1000Vdc 10kA UL489 SC

    B1B4C40

    $109.18
    $121.31
    B1B 4P C curve 40A 1000Vdc 10kA UL489 SC
  • B1B4C50 Noark B1B 4P C curve 50A 1000Vdc 10kA UL489 SC

    B1B4C50

    $109.18
    $121.31
    B1B 4P C curve 50A 1000Vdc 10kA UL489 SC
  • B1B4C63 Noark B1B 4P C curve 63A 1000Vdc 10kA UL489 SC

    B1B4C63

    $109.18
    $121.31
    B1B 4P C curve 63A 1000Vdc 10kA UL489 SC
  • B1D1C0.5 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 0.5A, 10 kA, 250 Vdc, Box Lug

    B1D1C0.5

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 0.5A, 10 kA, 250 Vdc, Box Lug
  • B1D1C1 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 1A, 10 kA, 250 Vdc, Box Lug

    B1D1C1

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 1A, 10 kA, 250 Vdc, Box Lug
  • B1D1C1.6 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 1.6A, 10 kA, 250 Vdc, Box Lug

    B1D1C1.6

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 1.6A, 10 kA, 250 Vdc, Box Lug
  • B1D1C10 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 10A, 10 kA, 250 Vdc, Box Lug

    B1D1C10

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 10A, 10 kA, 250 Vdc, Box Lug
  • B1D1C13 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 13A, 10 kA, 250 Vdc, Box Lug

    B1D1C13

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 13A, 10 kA, 250 Vdc, Box Lug
  • B1D1C15 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 15A, 10 kA, 250 Vdc, Box Lug

    B1D1C15

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 15A, 10 kA, 250 Vdc, Box Lug
  • B1D1C16 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 16A, 10 kA, 250 Vdc, Box Lug

    B1D1C16

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 16A, 10 kA, 250 Vdc, Box Lug
  • B1D1C2 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 2A, 10 kA, 250 Vdc, Box Lug

    B1D1C2

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 2A, 10 kA, 250 Vdc, Box Lug
  • B1D1C20 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 20A, 10 kA, 250 Vdc, Box Lug

    B1D1C20

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 20A, 10 kA, 250 Vdc, Box Lug
  • B1D1C25 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 25A, 10 kA, 250 Vdc, Box Lug

    B1D1C25

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 25A, 10 kA, 250 Vdc, Box Lug
  • B1D1C3 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 3A, 10 kA, 250 Vdc, Box Lug

    B1D1C3

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 3A, 10 kA, 250 Vdc, Box Lug
  • B1D1C30 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 30A, 10 kA, 250 Vdc, Box Lug

    B1D1C30

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 30A, 10 kA, 250 Vdc, Box Lug
  • B1D1C32 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 32A, 10 kA, 250 Vdc, Box Lug

    B1D1C32

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 32A, 10 kA, 250 Vdc, Box Lug
  • B1D1C35 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 35A, 10 kA, 250 Vdc, Box Lug

    B1D1C35

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 35A, 10 kA, 250 Vdc, Box Lug
  • B1D1C4 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 4A, 10 kA, 250 Vdc, Box Lug

    B1D1C4

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 4A, 10 kA, 250 Vdc, Box Lug
  • B1D1C40 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 40A, 10 kA, 250 Vdc, Box Lug

    B1D1C40

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 40A, 10 kA, 250 Vdc, Box Lug
  • B1D1C5 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 5A, 10 kA, 250 Vdc, Box Lug

    B1D1C5

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 5A, 10 kA, 250 Vdc, Box Lug
  • B1D1C50 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 50A, 10 kA, 250 Vdc, Box Lug

    B1D1C50

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 50A, 10 kA, 250 Vdc, Box Lug
  • B1D1C6 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 6A, 10 kA, 250 Vdc, Box Lug

    B1D1C6

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 6A, 10 kA, 250 Vdc, Box Lug
  • B1D1C60 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 60A, 10 kA, 250 Vdc, Box Lug

    B1D1C60

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 60A, 10 kA, 250 Vdc, Box Lug
  • B1D1C63 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 63A, 10 kA, 250 Vdc, Box Lug

    B1D1C63

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 63A, 10 kA, 250 Vdc, Box Lug
  • B1D1C7 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 7A, 10 kA, 250 Vdc, Box Lug

    B1D1C7

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 7A, 10 kA, 250 Vdc, Box Lug
  • B1D1C8 Noark Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 8A, 10 kA, 250 Vdc, Box Lug

    B1D1C8

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, C Curve, 8A, 10 kA, 250 Vdc, Box Lug
  • B1D1D0.5 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 0.5A, 10 kA, 125 Vdc, Box Lug

    B1D1D0.5

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 0.5A, 10 kA, 125 Vdc, Box Lug
  • B1D1D1 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 1A, 10 kA, 125 Vdc, Box Lug

    B1D1D1

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 1A, 10 kA, 125 Vdc, Box Lug
  • B1D1D1.6 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 1.6A, 10 kA, 125 Vdc, Box Lug

    B1D1D1.6

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 1.6A, 10 kA, 125 Vdc, Box Lug
  • B1D1D10 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 10A, 10 kA, 125 Vdc, Box Lug

    B1D1D10

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 10A, 10 kA, 125 Vdc, Box Lug
  • B1D1D13 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 13A, 10 kA, 125 Vdc, Box Lug

    B1D1D13

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 13A, 10 kA, 125 Vdc, Box Lug
  • B1D1D15 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 15A, 10 kA, 125 Vdc, Box Lug

    B1D1D15

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 15A, 10 kA, 125 Vdc, Box Lug
  • B1D1D16 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 16A, 10 kA, 125 Vdc, Box Lug

    B1D1D16

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 16A, 10 kA, 125 Vdc, Box Lug
  • B1D1D2 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 2A, 10 kA, 125 Vdc, Box Lug

    B1D1D2

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 2A, 10 kA, 125 Vdc, Box Lug
  • B1D1D20 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 20A, 10 kA, 125 Vdc, Box Lug

    B1D1D20

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 20A, 10 kA, 125 Vdc, Box Lug
  • B1D1D25 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 25A, 10 kA, 125 Vdc, Box Lug

    B1D1D25

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 25A, 10 kA, 125 Vdc, Box Lug
  • B1D1D3 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 3A, 10 kA, 125 Vdc, Box Lug

    B1D1D3

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 3A, 10 kA, 125 Vdc, Box Lug
  • B1D1D30 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 30A, 10 kA, 125 Vdc, Box Lug

    B1D1D30

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 30A, 10 kA, 125 Vdc, Box Lug
  • B1D1D32 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 32A, 10 kA, 125 Vdc, Box Lug

    B1D1D32

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 32A, 10 kA, 125 Vdc, Box Lug
  • B1D1D35 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 35A, 10 kA, 125 Vdc, Box Lug

    B1D1D35

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 35A, 10 kA, 125 Vdc, Box Lug
  • B1D1D4 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 4A, 10 kA, 125 Vdc, Box Lug

    B1D1D4

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 4A, 10 kA, 125 Vdc, Box Lug
  • B1D1D40 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 40A, 10 kA, 125 Vdc, Box Lug

    B1D1D40

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 40A, 10 kA, 125 Vdc, Box Lug
  • B1D1D5 Noark Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 5A, 10 kA, 125 Vdc, Box Lug

    B1D1D5

    $26.32
    $29.24
    Miniature Circuit Breakers, B1D UL 489, 1P, D Curve, 5A, 10 kA, 125 Vdc, Box Lug