Miniature Circuit Breakers (MCBs)

Compact breakers designed for low-voltage protection.

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  • Square D QOB120GFI Miniature Circuit Breakers (MCBs)

    Square D QOB120GFI Miniature Circuit Breakers (MCBs)

    120 VAC 50/60 Hz, 20 A, 10 kA Interrupt, 1-Pole, Bolt-On Mount, 1-Panel Space, Pressure Plate Terminal, Pigtail, 6 mA Class A Ground Fault, Miniature Circuit Breaker

    Stock: 20
    Upgrade your hardware supply with surplus Square D QOB120GFI Miniature Circuit Breakers (MCBs), a smart choice for any warehouse. This product delivers solid functionality and enduring performance. Because it is surplus, you get an exceptional value,...
    From: 
    $91.65
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    Square D QO390 Miniature Circuit Breakers (MCBs)

    120/240 VAC 50/60 Hz, 90 A, 10 kA Interrupt, 3-Pole, 4 to 2/0 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker

    Stock: 13
    Upgrade your hardware supply with surplus Square D QO390 Miniature Circuit Breakers (MCBs), a smart choice for any warehouse. This product delivers solid functionality and enduring performance. Because it is surplus, you get an exceptional value, making...
    From: 
    $83.33
  • Square D QO370 Miniature Circuit Breakers (MCBs) Square D QO370 Miniature Circuit Breakers (MCBs)

    Square D QO370 Miniature Circuit Breakers (MCBs)

    120/240 VAC 50/60 Hz, 70 A, 10 kA Interrupt, 3-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker

    Stock: 2
    Upgrade your hardware supply with surplus Square D QO370 Miniature Circuit Breakers (MCBs), a smart choice for any warehouse. This product delivers solid functionality and enduring performance. Because it is surplus, you get an exceptional value, making...
    From: 
    $99.45
  • Square D QO230 Miniature Circuit Breakers (MCBs)

    Square D QO230 Miniature Circuit Breakers (MCBs)

    120/240 VAC 50/60 Hz, 48 VDC, 30 A, 5/10 kA Interrupt, 2-Pole, 14 to 8 AWG Copper/Aluminum, Plug-In Mount, Pressure Plate Terminal, Standard, Miniature Circuit Breaker

    Stock: 4
    Upgrade your hardware supply with surplus Square D QO230 Miniature Circuit Breakers (MCBs), a smart choice for any warehouse. This product delivers solid functionality and enduring performance. Because it is surplus, you get an exceptional value, making...
    From: 
    $23.98
  • Square D QO125 Miniature Circuit Breakers (MCBs)

    Square D QO125 Miniature Circuit Breakers (MCBs)

    120/240 VAC 50/60 Hz, 48 VDC, 25 A, 5/10 kA Interrupt, 1-Pole, 14 to 8 AWG Copper/Aluminum, Plug-In Mount, Pressure Plate Terminal, Standard, Miniature Circuit Breaker

    Stock: 2
    Upgrade your hardware supply with surplus Square D QO125 Miniature Circuit Breakers (MCBs), a smart choice for any warehouse. This product delivers solid functionality and enduring performance. Because it is surplus, you get an exceptional value, making...
    From: 
    $10.53
  • Square D QO120VH Miniature Circuit Breakers (MCBs)

    Square D QO120VH Miniature Circuit Breakers (MCBs)

    120/240 VAC 50/60 Hz, 20 A, 22 kA Interrupt, 1-Pole, 14 to 8 AWG Copper/Aluminum, Plug-In Mount, Pressure Plate Terminal, Standard, Miniature Circuit Breaker

    Stock: 22
    Upgrade your hardware supply with surplus Square D QO120VH Miniature Circuit Breakers (MCBs), a smart choice for any warehouse. This product delivers solid functionality and enduring performance. Because it is surplus, you get an exceptional value,...
    From: 
    $29.16
  • Square D EGB34035 Miniature Circuit Breakers (MCBs) Square D EGB34035 Miniature Circuit Breakers (MCBs)

    Square D EGB34035 Miniature Circuit Breakers (MCBs)

    480 Star/277 VAC, 35 A, 35 kA, 3-Pole, E-Frame, Bolt-On Mount, Aluminum Lug Terminal, Thermal Magnetic, Branch, Miniature, Panelboard Circuit Breaker

    Stock: 1
    Upgrade your hardware supply with surplus Square D EGB34035 Miniature Circuit Breakers (MCBs), a smart choice for any warehouse. This product delivers solid functionality and enduring performance. Because it is surplus, you get an exceptional value,...
    From: 
    $370.50
  • Square D EGB14020 Miniature Circuit Breakers (MCBs)

    Square D EGB14020 Miniature Circuit Breakers (MCBs)

    277 VAC, 20 A, 35 kA, 1-Pole, E-Frame, Bolt-On Mount, Aluminum Lug Terminal, Thermal Magnetic, Branch, Miniature, Panelboard Circuit Breaker

    Stock: 12
    Upgrade your hardware supply with surplus Square D EGB14020 Miniature Circuit Breakers (MCBs), a smart choice for any warehouse. This product delivers solid functionality and enduring performance. Because it is surplus, you get an exceptional value,...
    From: 
    $83.85
  • Square D EDB34030 Miniature Circuit Breakers (MCBs)

    Square D EDB34030 Miniature Circuit Breakers (MCBs)

    480 Star/277 VAC, 30 A, 18 kA, 3-Pole, E-Frame, Bolt-On Mount, Aluminum Lug Terminal, Thermal Magnetic, Branch, Miniature, Panelboard Circuit Breaker

    Stock: 7
    Upgrade your hardware supply with surplus Square D EDB34030 Miniature Circuit Breakers (MCBs), a smart choice for any warehouse. This product delivers solid functionality and enduring performance. Because it is surplus, you get an exceptional value,...
    From: 
    $241.80
  • Square D QOB330VH Miniature Circuit Breakers (MCBs)

    Square D QOB330VH Miniature Circuit Breakers (MCBs)

    120/240 VAC 50/60 Hz, 48 VDC, 30 A, 22 kA, 3-Pole, Q-Frame, Bolt-On Mount, Pressure Plate Terminal, Miniature, Standard, Panelboard Circuit Breaker

    Stock: 70
    Upgrade your hardware supply with surplus Square D QOB330VH Miniature Circuit Breakers (MCBs), a smart choice for any warehouse. This product delivers solid functionality and enduring performance. Because it is surplus, you get an exceptional value,...
    From: 
    $173.55
  • Square D QOB3100VH Miniature Circuit Breakers (MCBs)

    Square D QOB3100VH Miniature Circuit Breakers (MCBs)

    120/240 VAC 50/60 Hz, 48 VDC, 100 A, 22 kA, 3-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker

    Stock: 6
    Upgrade your hardware supply with surplus Square D QOB3100VH Miniature Circuit Breakers (MCBs), a smart choice for any warehouse. This product delivers solid functionality and enduring performance. Because it is surplus, you get an exceptional value,...
    From: 
    $196.95
  • Square D QOB240EPD Miniature Circuit Breakers (MCBs)

    Square D QOB240EPD Miniature Circuit Breakers (MCBs)

    120/240 VAC 50/60 Hz, 40 A, 10 kA Interrupt, 2-Pole, Bolt-On Mount, 2-Panel Space, Box Lug Terminal, 30 mA Class B Ground Fault, Miniature Circuit Breaker

    Stock: 1
    Upgrade your hardware supply with surplus Square D QOB240EPD Miniature Circuit Breakers (MCBs), a smart choice for any warehouse. This product delivers solid functionality and enduring performance. Because it is surplus, you get an exceptional value,...
    From: 
    $313.95