Miniature Circuit Breakers (MCBs)
A miniature circuit breaker (MCB) is a type of electrical breaker that is designed to protect electrical circuits from damage due to overloading, short-circuiting, or other electrical faults. MCBs are commonly used in residential and light commercial electrical systems, and are typically smaller in size than traditional circuit breakers.
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Square D QO250 Miniature Circuit Breakers (MCBs) 2P 50A 120V
MSRP $70.00Surplus $34.05Square D QO250 Miniature Circuit Breakers (MCBs) 2P 50A 120V​ ARCA SKU: C15-4183 Brand: Square D MPN: QO250 UPC: 78590140052 Shipping Weight: 0.60 lbs. Shipping Height: 2.00 In...- SKU:
- C15-4183
- Series:
- QO
- Type:
- Common Trip
- Type:
- Miniature
- Type:
- Standard
- Approval:
- UL
- Approval:
- CSA
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Volts:
- 48 VDC
- Amps:
- 32 A
- Used On:
- QO Load Center
- Used On:
- NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 5/10 kA
- Terminal Type:
- Box Lug
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 5/10 kA Interrupt, 2-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53530_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Manufacturer Warranty:
- SchneiderElectric-SquareD_00002_WARR.pdf
- TS PIK:
- 110616090
- Current Rating:
- 50 A
- Voltage Rating:
- 120/240 VAC
- Number of Poles:
- 2
- Country of Origin:
- Ireland
MSRP $70.00Surplus $34.05 -
Square D QO350 Miniature Circuit Breakers (MCBs) 3P 50A 240V
MSRP $248.00Surplus $64.40Square D QO350 Miniature Circuit Breakers (MCBs) 3P 50A 240V​ ARCA SKU: C15-6381 Brand: Square D MPN: QO350 UPC: 78590140080 Shipping Weight: 2.65 lbs. Shipping Height: 4.00 In...- SKU:
- C15-6381
- TS PIK:
- 124024945
- Interrupting Rating:
- 5/10 kA
- Current Rating:
- 50 A
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_53603_1_2_DATA.pdf
- Terminal Type:
- Box Lug
- Number of Poles:
- 3
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Voltage Rating:
- 120/240 VAC
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Mounting:
- Plug-On
- Series:
- QO
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 5/10 kA Interrupt, 3-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Type:
- Common Trip, Miniature, Standard
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $248.00Surplus $64.40 -
Square D QO2501021 Miniature Circuit Breakers (MCBs) EA
MSRP $256.00Surplus $385.70Square D QO2501021 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-9350 Brand: Square D MPN: QO2501021 UPC: 78590149401 Shipping Weight: 0.95 lbs. Shipping Height: 3.00 In...- SKU:
- C15-9350
- TS PIK:
- 111089497
- CAD Drawings:
- SchneiderElectric-SquareD_03059_1_CAD.pdf
- Mounting:
- Plug-On
- Voltage Rating:
- 120/240 VAC at 50/60 Hz
- Number of Poles:
- 2
- Terminal Type:
- Box Lug
- Interrupting Rating:
- 10 kA
- Catalog:
- SchneiderElectric-SquareD_03264_1_3_1_9_1_39_CAT.pdf
- Current Rating:
- 50 A
- Wire Size:
- 8 to 2 AWG (Aluminum/Copper)
- Used On:
- QO Load Center, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
- Type:
- Common Trip, Thermal Magnetic
- Size:
- 1.5 Inch W x 2.91 Inch D x 3 Inch H
- Data Sheet:
- SchneiderElectric-SquareD_14982_1_2_DATA.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 10 kA Interrupt, 2-Pole, Plug-On Mount, 3-Panel Space, Box Lug Terminal, AC Shunt Trip, Standard, Miniature Circuit Breaker
- Country of Origin:
- Mexico
- Approval:
- UL, CSA
MSRP $256.00Surplus $385.70 -
Eaton QC2050 Miniature Circuit Breakers (MCBs) QC 2P 50A 240V 50/60Hz 1Ph EA
MSRP $157.01Surplus $52.92Eaton QC2050 Miniature Circuit Breakers (MCBs) QC 2P 50A 240V 50/60Hz 1Ph EA​ ARCA SKU: C15-1507 Brand: Eaton MPN: QC2050 UPC: 786679309643 Shipping Weight: 0.75 lbs. Shipping...- SKU:
- C15-1507
- Series:
- QC
- Type:
- Thermal Magnetic
- Approval:
- UL 489
- Approval:
- CSA
- Volts:
- 120/240 VAC
- Amps:
- 32 A
- Poles:
- 2
- Mounting:
- Cable-In/Cable-Out
- Interrupting Rating:
- 10000 A at 120/240 VAC
- Interrupting Rating:
- 5000 Amp at 24 to 48/62.5/80 Volt DC
- Terminal Type:
- Box Lug
- Wire Size:
- 14 to 4 AWG Copper/Aluminum (Load)
- Short Description:
- 120/240 VAC, 50 A, 10 kA, 2-Pole, Aluminum Box Lug Line/Steel Box Lug Load Terminal, Cable-In/Out Mount, Thermal Magnetic, Miniature
- Catalog:
- Eaton_03771_V4T1_19_V4T1_20_V4T1_46_CAT.pdf
- CAD Drawing:
- ABBElectrificationProducts-ABBGEIndustrialSolutions_05964_1_CAD.pdf
- Number of Poles:
- 2
- Current Rating:
- 50 A
- Voltage Rating:
- 120/240 VAC
- TS PIK:
- 21508972
- Country of Origin:
- United States
MSRP $157.01Surplus $52.92 -
Square D QO150 Miniature Circuit Breakers (MCBs) 50A 120V
MSRP $29.10Surplus $11.77Square D QO150 Miniature Circuit Breakers (MCBs) 50A 120V​ ARCA SKU: C15-4923 Brand: Square D MPN: QO150 UPC: 78590140022 Shipping Weight: 0.30 lbs. Shipping Height: 3.00 In...- SKU:
- C15-4923
- TS PIK:
- 21371522
- Size:
- 0.75 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Number of Poles:
- 1
- Mounting:
- Plug-On
- Current Rating:
- 50 A
- Voltage Rating:
- 120/240 VAC
- Interrupting Rating:
- 5/10 kA
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01259_INST.pdf
- Used On:
- QO Load Center, NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Type:
- Common Trip, Miniature, Standard
- Data Sheet:
- SchneiderElectric-SquareD_53432_1_2_DATA.pdf
- Terminal Type:
- Box Lug
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 50 A, 5/10 kA Interrupt, 1-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard, Miniature Circuit Breaker
- Series:
- QO
- Country of Origin:
- Ireland
- Approval:
- UL, CSA
MSRP $29.10Surplus $11.77 -
Square D QO250EPD Miniature Circuit Breakers (MCBs)
MSRP $713.00Surplus $369.90SKU: C15-10895 Brand: Square D MPN: QO250EPD UPC: 78590118833 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10895
- TS PIK:
- 116965844
- Catalog:
- SchneiderElectric-SquareD_03264_1_6_CAT.pdf
- Used On:
- QO Loadcenter, NQOD Panelboard, OEM Interior/Speed-D Switchboard Distribution Panel
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Prop 65 Warning:
- Yes
- Terminal Type:
- Box Lug
- Series:
- QO-EPD
- Current Rating:
- 50 A
- Number of Poles:
- 2
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 10 kA Interrupt, 2-Pole, Plug-On Mount, 2-Panel Space, Box Lug Terminal, 30 mA Class B Ground Fault, Miniature Circuit Breaker
- Interrupting Rating:
- 10 kA
- Data Sheet:
- SchneiderElectric-SquareD_14984_1_2_DATA.pdf
- Mounting:
- Plug-On
- Installation/Operator:
- SchneiderElectric-SquareD_00133_INST.pdf
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Size:
- 1.5 Inch W x 2.91 Inch D x 4.12 Inch H
- Type:
- Thermal Magnetic, Common Trip, Equipment Protector
- Trip Sensitivity:
- 30 MilliA
- Approval:
- UL, CSA
- Country of Origin:
- Mexico
MSRP $713.00Surplus $369.90 -
Square D QO250GFI Miniature Circuit Breakers (MCBs)
MSRP $413.00Surplus $167.47SKU: C15-6644 Brand: Square D MPN: QO250GFI UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6644
- TS PIK:
- 42800411
- Current Rating:
- 50 A
- Prop 65 Warning:
- Yes
- Number of Poles:
- 2
- Mounting:
- Plug-On
- Series:
- QO-GFI
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 10 kA Interrupt, 2-Pole, Plug-On Mount, 2-Panel Space, Box Lug Terminal, 6 mA Class A Ground Fault, Pigtail, Miniature Circuit Breaker
- Type:
- Miniature, Thermal Magnetic, Common Trip
- Installation/Operator:
- SchneiderElectric-SquareD_00198_INST.pdf
- Used On:
- QO Loadcenter, NQ Panelboard, NQ OEM Interior/Speed-D Switchboard Distribution Panel
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 4.12 Inch Height
- Data Sheet:
- SchneiderElectric-SquareD_14985_1_2_DATA.pdf
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Catalog:
- SchneiderElectric-SquareD_03264_1_5_1_45_1_47_CAT.pdf
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Box Lug
- Voltage Rating:
- 120/240 VAC
- Trip Sensitivity:
- 6 MilliA
- Approval:
- UL, CSA
- Country of Origin:
- Mexico
MSRP $413.00Surplus $167.47 -
Square D QO250VH Miniature Circuit Breakers (MCBs) QO 2P 50A 120V 50/60Hz 1Ph 1 Phase
MSRP $146.00Surplus $120.40Square D QO250VH Miniature Circuit Breakers (MCBs) QO 2P 50A 120V 50/60Hz 1Ph 1 Phase​ ARCA SKU: C15-2171 Brand: Square D MPN: QO250VH UPC: 785901054962 Shipping Weight: 0.70 Shipping...- SKU:
- C15-2171
- Series:
- QO
- Type:
- Common Trip
- Type:
- Thermal Magnetic
- Approval:
- UL
- Approval:
- CSA
- Size:
- 1.5 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Amps:
- 32 A
- Used On:
- QO Load Center
- Used On:
- NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Poles:
- 2
- Mounting:
- Plug-On
- Interrupting Rating:
- 22 kA
- Terminal Type:
- Box Lug
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 22 kA Interrupt, 2-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_14970_1_2_DATA.pdf
- CAD Drawing:
- SchneiderElectric-SquareD_03068_1_CAD.pdf
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Number of Poles:
- 2
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Current Rating:
- 50 A
- Country of Origin:
- Mexico
MSRP $146.00Surplus $120.40 -
Square D QO350VH Miniature Circuit Breakers (MCBs) QO 3P 50A 240V 50/60Hz 3Ph
MSRP $371.00Surplus $249.20Square D QO350VH Miniature Circuit Breakers (MCBs) QO 3P 50A 240V 50/60Hz 3Ph​ ARCA SKU: C15-2190 Brand: Square D MPN: QO350VH UPC: 785901060215 Shipping Weight: 1.03 Shipping Height: 2.30...- SKU:
- C15-2190
- Series:
- QO
- Type:
- Bi-Metallic
- Type:
- Thermal
- Approval:
- UL
- Approval:
- CSA
- Size:
- 2.24 Inch Width x 2.91 Inch Depth x 3.11 Inch Height
- Volts:
- 120/240 VAC 50/60 Hertz
- Amps:
- 32 A
- Used On:
- QO Load Center
- Used On:
- NQ/NQOD Panelboard/OEM Interior/Speed-D Switchboard Distribution Panel
- Poles:
- 3
- Mounting:
- Plug-On
- Interrupting Rating:
- 22 kA
- Enclosure:
- IP20
- Terminal Type:
- Box Lug
- Wire Size:
- 8 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 22 kA Interrupt, 3-Pole, 8 to 2 AWG Copper/Aluminum, Plug-In Mount, Box Lug Terminal, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_1_2_1_3_CAT.pdf
- Data Sheet:
- Eaton_41012_1-6_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_01265_INST.pdf
- Number of Poles:
- 3
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Current Rating:
- 50 A
- Country of Origin:
- Ireland
MSRP $371.00Surplus $249.20 -
Contact Us For Quote
Square D QOB250GFI Miniature Circuit Breakers (MCBs)
MSRP $595.00Surplus $134.32SKU: C15-10914 Brand: Square D MPN: QOB250GFI UPC: 78590136297 Shipping Weight: 1.05 lbs. Shipping Height: 6.00 In. Shipping Length: 4.00 In. Shipping Width: 3.00 In...- SKU:
- C15-10914
- TS PIK:
- 115542999
- Short Description:
- 120/240 VAC 50/60 Hz, 50 A, 10 kA Interrupt, 2-Pole, Bolt-On Mount, 2-Panel Space, Box Lug Terminal, Pigtail, 6 mA Class A Ground Fault, Miniature Circuit Breaker
- Number of Poles:
- 2
- Series:
- QOB-GFI
- Type:
- Thermal Magnetic, Common Trip, Equipment Protector
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Prop 65 Warning:
- Yes
- Interrupting Rating:
- 10 kA
- Current Rating:
- 50 A
- Mounting:
- Bolt-On
- Voltage Rating:
- 120/240 VAC at 50/60 Hz (UL/CSA)
- Used On:
- NQOD Panelboard/Interior
- Installation/Operator:
- SchneiderElectric-SquareD_00198_INST.pdf
- Data Sheet:
- SchneiderElectric-SquareD_15177_1_2_DATA.pdf
- Size:
- 1.5 Inch W x 2.91 Inch D x 4.12 Inch H
- Trip Sensitivity:
- 6 MilliA
- Terminal Type:
- Box Lug
- Catalog:
- SchneiderElectric-SquareD_03283_9_14_CAT.pdf
- Approval:
- UL, CSA
MSRP $595.00Surplus $134.32 -
Square D QOB350GFI Miniature Circuit Breakers (MCBs) EA
MSRP $836.00Surplus $957.60SKU: C15-10919 Brand: Square D MPN: QOB350GFI UPC: 78590169018 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10919
- TS PIK:
- 124273845
- Short Description:
- 208 VAC Star/120 VAC, 50 A, 10 kA Interrupt, 3-Pole, Bolt-On Mount, 3-Panel Space, Box Lug Terminal, Pigtail, 6 mA Class A Ground Fault, Miniature Circuit Breaker
- Series:
- QOB
- Prop 65 Warning:
- Yes
- Data Sheet:
- SchneiderElectric-SquareD_15232_1_2_DATA.pdf
- Type:
- Miniature, Thermal Magnetic
- Number of Poles:
- 3
- Terminal Type:
- Box Lug
- Catalog:
- SchneiderElectric-SquareD_03283_9_14_CAT.pdf
- Current Rating:
- 50 A
- Voltage Rating:
- 208 VAC Star/120 VAC at 50/60 Hz
- Mounting:
- Bolt-On
- Wire Size:
- 12 to 4 AWG (Aluminum), 14 to 6 AWG (Copper)
- Installation/Operator:
- SchneiderElectric-SquareD_00894_INST.pdf
- Used On:
- NQ Panelboard/Interior
- Interrupting Rating:
- 10 kA
- Size:
- 2.25 Inch W x 2.91 Inch D x 4.12 Inch H
- Approval:
- UL, CSA
- Trip Sensitivity:
- 6 MilliA
- Country of Origin:
- Mexico
MSRP $836.00Surplus $957.60
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