Circuit Breakers

Switching devices that automatically cut power in case of overloads or faults.
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  • Square D QOB3100 Miniature Circuit Breakers (MCBs)
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    Square D QOB3100 Miniature Circuit Breakers (MCBs)

    120/240 VAC 50/60 Hz, 48 VDC, 100 A, 10 kA, 3-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker

    Stock: 43
    Upgrade your hardware supply with surplus Square D QOB3100 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: 
    $99.99
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  • Square D QOB280 Miniature Circuit Breakers (MCBs)
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    Square D QOB280 Miniature Circuit Breakers (MCBs)

    120/240 VAC 50/60 Hz, 48 VDC, 80 A, 10 kA, 2-Pole, Q-Frame, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker

    Stock: 5
    Upgrade your hardware supply with surplus Square D QOB280 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: 
    $70.20
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  • Square D QOB2100 Miniature Circuit Breakers (MCBs)
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    Square D QOB2100 Miniature Circuit Breakers (MCBs)

    120/240 VAC 50/60 Hz, 48 VDC, 100 A, 10 kA, 2-Pole, Q-Frame, BC Phase, Bolt-On Mount, Box Lug Terminal, Miniature, Standard, Panelboard Circuit Breaker

    Stock: 2
    Upgrade your hardware supply with surplus Square D QOB2100 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: 
    $70.20
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  • Square D QOB130VH Miniature Circuit Breakers (MCBs)
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    Square D QOB130VH Miniature Circuit Breakers (MCBs)

    120/240 VAC 50/60 Hz, 48 VDC, 30 A, 22 kA, 1-Pole, Q-Frame, Bolt-On Mount, Pressure Plate Terminal, Miniature, Standard, Panelboard Circuit Breaker

    Stock: 1
    Upgrade your hardware supply with surplus Square D QOB130VH 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: 
    $42.90
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  • Square D QOB120VHGFI Miniature Circuit Breakers (MCBs)
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    Square D QOB120VHGFI Miniature Circuit Breakers (MCBs)

    120 VAC 50/60 Hz, 20 A, 22 kA Interrupt, 1-Pole, Bolt-On Mount, 1-Panel Space, Pressure Plate Terminal, Pigtail, 6 mA Class A Ground Fault, Miniature Circuit Breaker

    Stock: 1
    Upgrade your hardware supply with surplus Square D QOB120VHGFI 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: 
    $105.30
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  • Square D QOB120GFI Miniature Circuit Breakers (MCBs)
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    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
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  • Square D QO370 Miniature Circuit Breakers (MCBs) Square D QO370 Miniature Circuit Breakers (MCBs)
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    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
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  • Square D QO230 Miniature Circuit Breakers (MCBs)
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    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
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  • Square D QO125 Miniature Circuit Breakers (MCBs)
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    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
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  • Square D QO120VH Miniature Circuit Breakers (MCBs)
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    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
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  • Square D EGB34035 Miniature Circuit Breakers (MCBs) Square D EGB34035 Miniature Circuit Breakers (MCBs)
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    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
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