Circuit Breakers
Our selection of circuit breakers spans a wide range of applications, from heavy-duty air circuit breakers (ACBs) to compact miniature circuit breakers (MCBs). We offer leading brands like Eaton, Siemens, and Square D, known for their reliability and performance. Whatever your power management needs, you can find the perfect solution here at ARCA Supply.
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Din Rail Mounted Circuit Breakers
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Main Breakers
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Miniature Circuit Breakers (MCBs)
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Molded Case Breakers (MCCBs)
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Motor Circuit Protector (MCPs)
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Lug Terminal Kits
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Auxiliary, Shunt, Trip Units and UVRs
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Circuit Breaker Accessories
- Product
- Qty in Cart
- Price
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Contact Us For Quote
Eaton WAMPLK Circuit Breaker Accessories WMS Lockoff
MSRP $52.50Surplus $13.66Eaton WAMPLK Circuit Breaker Accessories WMS Lockoff​ ARCA SKU: C15-2531 Brand: Eaton MPN: WAMPLK UPC: 782116419203 Shipping Weight: 0.00 Shipping Height: 4.00 In. Shipping...- SKU:
- C15-2531
- Poles:
- 4
- Short Description:
- WMS LOCKOFF FOR 1-4 POLE CIRCUIT BREAKERS
MSRP $52.50Surplus $13.66 -
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Eaton WHM5R06 Circuit Breaker Accessories Rotary Handle N Frame
MSRP $337.64Surplus $139.52Eaton WHM5R06 Circuit Breaker Accessories Rotary Handle N Frame​ ARCA SKU: C15-4152 Brand: Eaton MPN: WHM5R06 UPC: 786679785140 Shipping Weight: 5.70 Shipping Height: 5.00 In. Shipping...- SKU:
- C15-4152
- Frame:
- N
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY HANDLE MECHANISM, EATON MOLDED CASE
MSRP $337.64Surplus $139.52 -
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Eaton WHM5R12 Circuit Breaker Accessories Rotary Handle N Frame
MSRP $348.57Surplus $129.72Eaton WHM5R12 Circuit Breaker Accessories Rotary Handle N Frame​ ARCA SKU: C15-3217 Brand: Eaton MPN: WHM5R12 UPC: 786679785188 Shipping Weight: 6.10 Shipping Height: 5.00 In. Shipping...- SKU:
- C15-3217
- Frame:
- N
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY HANDLE MECHANISM, EATON MOLDED CASE
MSRP $348.57Surplus $129.72 -
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Eaton WMS1C15 Miniature Circuit Breakers (MCBs) WMS1C 1P 15A 50/60Hz 1Ph
MSRP $100.00Surplus $38.35Eaton WMS1C15 Miniature Circuit Breakers (MCBs) WMS1C 1P 15A 50/60Hz 1Ph​ ARCA SKU: C15-5069 Brand: Eaton MPN: WMS1C15 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In...- SKU:
- C15-5069
MSRP $100.00Surplus $38.35 -
Eaton WMZPLOFF Circuit Breaker Accessories Handle Lock Padlockable
MSRP $77.10Surplus $19.01Eaton WMZPLOFF Circuit Breaker Accessories Handle Lock Padlockable​ ARCA SKU: C15-2453 Brand: Eaton MPN: WMZPLOFF UPC: 786685443935 Shipping Weight: 0.10 Shipping Height: 1.00 In. Shipping...- SKU:
- C15-2453
- Type:
- Padlockable Handle Lock
- Type:
- OFF
- Used On:
- Circuit Breaker Load Center
- Short Description:
- Padlockable Handle Lock for Circuit Breaker Load Center
- Specification/Technical:
- Eaton_20993_1_SPEC.pdf
- Country of Origin:
- United States
MSRP $77.10Surplus $19.01 -
Eaton WMZS1B06 Miniature Circuit Breakers (MCBs) WMZS 1P 6A 50/60Hz 1Ph EA
MSRP $69.56Surplus $11.40Eaton WMZS1B06 Miniature Circuit Breakers (MCBs) WMZS 1P 6A 50/60Hz 1Ph EA​ ARCA SKU: C15-4999 Brand: Eaton MPN: WMZS1B06 UPC: 786685258416 Shipping Weight: 0.30 Shipping Height: 1.00 In...- SKU:
- C15-4999
- Approval:
- UL 1077
- Approval:
- CSA 22.2 235
- Approval:
- CE
- Amps:
- 6 A
- Interrupting Rating:
- 10 kA
- Mounting:
- DIN Rail
- Poles:
- 1
- Size:
- 3.01 Inch Width x 0.69 Inch Depth x 3.15 Inch Height
- Terminal Type:
- Standard Box
- Type:
- Thermal Magnetic
- Type:
- Supplementary Protector
- Type:
- B Protection Curve
- Type:
- Miniature
- Volts:
- 277/480 VAC 50/60 Hertz
- Gauge:
- 0
- Specification/Technical:
- Eaton_62267_1_2_SPEC.pdf
- Voltage Rating:
- 277/480 VAC 50/60 Hertz
- Number of Poles:
- 1
- Catalog:
- Eaton_32246_V9T1_3_V9T1_27_CAT.pdf
- Current Rating:
- 6 A
- Short Description:
- UL 1077 WMZS DIN RAIL SUPPLEMENTARY PROTECTOR
- Country of Origin:
- United States
MSRP $69.56Surplus $11.40 -
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Eaton WMZS1C03 Din Rail Mounted Circuit Breakers EA
MSRP $114.00Surplus $8.74Eaton WMZS1C03 Din Rail Mounted Circuit Breakers EA​ ARCA SKU: C15-9671 Brand: Eaton MPN: WMZS1C03 UPC: 78668525859 Shipping Weight: 0.30 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-9671
- TS PIK:
- 123584058
- Type:
- Current Limiting, Thermal Magnetic
- Interrupting Rating:
- 10 kA at 277 VAC, 10 kA at 48 VDC (UL, CSA)
- Current Rating:
- 3 A
- Terminal Type:
- Screw
- Number of Poles:
- 1
- Voltage Rating:
- 277 VAC/48 VDC (UL/CSA)
- CAD Drawings:
- Eaton_41266_1_CAD.pdf
- Catalog:
- Eaton_32246_V9T1_3_V9T1_27_CAT.pdf
- Mounting:
- DIN Rail
- Size:
- 0.69 Inch W x 2.36 Inch D x 3.15 Inch H
- Series:
- WMZS
- Trip Setting:
- 5 to 10 x Rated Current
- Short Description:
- 277 VAC, 3 A, 10 kA Interrupt Rating, 5 to 10 x Rated Current, 1-Pole, Screw Terminal, DIN Rail Mount, Current Limiting, Thermal Magnetic, Miniature Circuit Breaker Supplementary Protector
- Approval:
- UL 1077, CSA C22.2
MSRP $114.00Surplus $8.74 -
Eaton WMZS1C07 Din Rail Mounted Circuit Breakers EA
MSRP $94.00Surplus $6.00Eaton WMZS1C07 Din Rail Mounted Circuit Breakers EA​ ARCA SKU: C15-9666 Brand: Eaton MPN: WMZS1C07 UPC: 78668525863 Shipping Weight: 0.30 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-9666
- TS PIK:
- 123584062
- Size:
- 0.69 Inch W x 2.36 Inch D x 3.15 Inch H
- Catalog:
- Eaton_32246_V9T1_3_V9T1_27_CAT.pdf
- Current Rating:
- 7 A
- Interrupting Rating:
- 10 kA
- Type:
- Thermal Magnetic
- Terminal Type:
- Screw
- CAD Drawings:
- Eaton_41266_1_CAD.pdf
- Mounting:
- DIN Rail
- Number of Poles:
- 1
- Voltage Rating:
- 277/480 VAC
- Series:
- WMZS
- Short Description:
- 277 VAC, 7 A, 10 kA Interrupt Rating, 5 to 10 x Rated Current, 1-Pole, Screw Terminal, DIN Rail Mount, Current Limiting, Thermal Magnetic, Miniature Circuit Breaker Supplementary Protector
- Approval:
- UL 1077, CSA C22.2
- Country of Origin:
- Mexico
- Trip Setting:
- 5 to 10 x Rated Current
MSRP $94.00Surplus $6.00 -
Eaton WMZS2B06 Miniature Circuit Breakers (MCBs) WMZS 2P 6A 50/60Hz 1Ph EA
MSRP $150.96Surplus $11.66Eaton WMZS2B06 Miniature Circuit Breakers (MCBs) WMZS 2P 6A 50/60Hz 1Ph EA​ ARCA SKU: C15-5000 Brand: Eaton MPN: WMZS2B06 UPC: 78668525894 Shipping Weight: 0.25 Shipping Height: 4.00 In...- SKU:
- C15-5000
- Series:
- WMZS
- Amps:
- 6 A
- Poles:
- 2
- Frequency Rating:
- 50/60 Hz
- Short Description:
- UL 1077 WMZS DIN RAIL SUPPLEMENTARY PROTECTOR
- Country of Origin:
- United States
MSRP $150.96Surplus $11.66 -
Eaton WMZS2B20 Miniature Circuit Breakers (MCBs) EA
MSRP $150.96Surplus $43.78Eaton WMZS2B20 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-9074 Brand: Eaton MPN: WMZS2B20 UPC: 7866852590174 Shipping Weight: 0.50 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-9074
- Short Description:
- EATON UL 1077 WMZS DIN RAIL SUPPLEMENTARY PROTECTOR
- Country of Origin:
- United States
MSRP $150.96Surplus $43.78 -
Eaton WMZS2C05 Motor Circuit Protector (MCPs)
MSRP $173.16Surplus $19.40Eaton WMZS2C05 Motor Circuit Protector (MCPs)​ ARCA SKU: C15-11232 Brand: Eaton MPN: WMZS2C05 UPC: 78668525913 Shipping Weight: 0.55 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-11232
- TS PIK:
- 123584112
- Country of Origin:
- United States
MSRP $173.16Surplus $19.40 -
Eaton WMZT1C03 DIN Rail Circuit Breakers
MSRP $90.28Surplus $23.37Eaton WMZT1C03 DIN Rail Circuit Breakers ARCA SKU: C15-9077 Brand: Eaton MPN: WMZT1C03 UPC: 7866852560092 Shipping Weight: 0.30 lbs. Shipping Height: 2.00 In. Shipping Length: 4...- SKU:
- C15-9077
- Series:
- WMZT
- Short Description:
- 277/480 VAC 50/60 Hz, 48 VDC, 3 A, 10 kA, 5 to 10 x Rated Current, 1-Pole, Screw Terminal, DIN Rail Mount, Current Limiting, Thermal Magnetic, Miniature Circuit Breaker
- Terminal Type:
- Screw
- Current Rating:
- 3 A
- Type:
- Current Limiting, Thermal Magnetic
- Mounting:
- DIN Rail
- Catalog:
- Eaton_32246_V9T1_3_V9T1_25_V9T1_26_CAT.pdf
- Approval:
- UL 489, CSA C22.2
- Voltage Rating:
- 277/480 VAC
- Interrupting Rating:
- 10 kA at 277/480 VAC, 10 kA at 48 VDC (UL, CSA), 15 kA at 240/415 VAC (IEC)
- CAD Drawings:
- Eaton_41269_1_CAD.pdf
- Number of Poles:
- 1
- Size:
- 0.7 Inch W x 2.36 Inch D x 4.13 Inch H
- Installation/Operator:
- Eaton_00424_INST.pdf
- Country of Origin:
- Mexico
- Trip Setting:
- 5 to 10 x Rated Current
MSRP $90.28Surplus $23.37 -
Eaton WMZT1C05 Din Rail Mounted Circuit Breakers EA
MSRP $90.28Surplus $21.14Eaton WMZT1C05 Din Rail Mounted Circuit Breakers EA​ ARCA SKU: C15-9281 Brand: Eaton MPN: WMZT1C05 UPC: 0 Shipping Weight: 0.30 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-9281
- TS PIK:
- 123221667
- Number of Poles:
- 1
- Series:
- WMZT
- Type:
- Thermal Magnetic
- Terminal Type:
- Screw
- Interrupting Rating:
- 10 kA
- Voltage Rating:
- 277/480 VAC
- Installation/Operator:
- Eaton_00424_INST.pdf
- Catalog:
- Eaton_32246_V9T1_3_V9T1_25_V9T1_26_CAT.pdf
- Current Rating:
- 5 A
- Size:
- 0.7 Inch W x 2.36 Inch D x 4.13 Inch H
- CAD Drawings:
- Eaton_41269_1_CAD.pdf
- Mounting:
- DIN Rail
- Short Description:
- 277/480 VAC 50/60 Hz, 48 VDC, 5 A, 10 kA, 5 to 10 x Rated Current, 1-Pole, Screw Terminal, DIN Rail Mount, Current Limiting, Thermal Magnetic, Miniature Circuit Breaker
- Approval:
- UL 489, CSA C22.2
- Country of Origin:
- Mexico
- Trip Setting:
- 5 to 10 x Rated Current
MSRP $90.28Surplus $21.14 -
Eaton WMZT1C10 Other Circuit Breakers EA
MSRP $84.36Surplus $26.56Eaton WMZT1C10 Other Circuit Breakers EA​ ARCA SKU: C15-9079 Brand: Eaton MPN: WMZT1C10 UPC: 7866852560610 Shipping Weight: 0.30 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-9079
- Terminal Type:
- Lug
- Type:
- Thermal Magnetic
- CAD Drawings:
- Eaton_41269_1_CAD.pdf
- Mounting:
- DIN Rail
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 1
- Current Rating:
- 10 A
- Voltage Rating:
- 277/480 VAC
- Catalog:
- Eaton_32246_V9T1_3_V9T1_25_V9T1_26_CAT.pdf
- Installation/Operator:
- Eaton_00424_INST.pdf
- Size:
- 3 Inch Width x 0.697 Inch Depth x 4.134 Inch Height
- Short Description:
- UL 489 WMZT DIN Rail Miniature Circuit Breaker,DIN Rail miniature circuit breaker,10 A,10 kAIC UL/CSA, 15 kAIC IEC,Single-pole,277/480 V,50-60 Hz,Standard box terminals,C curve
- Approval:
- UL 489, CSA 22.2, CE
- Curve Type:
- C
- Country of Origin:
- Mexico
MSRP $84.36Surplus $26.56 -
Eaton WMZT1C10T Other Circuit Breakers EA
MSRP $156.00Surplus $20.80Eaton WMZT1C10T Other Circuit Breakers EA​ ARCA SKU: C15-9396 Brand: Eaton MPN: WMZT1C10T UPC: Shipping Weight: 0.30 lbs. Shipping Height: 2.00 In. Shipping Length: 4.00...- SKU:
- C15-9396
- Number of Poles:
- 1
- Mounting:
- DIN Rail
- Country of Origin:
- Mexico
- Type:
- Thermal Magnetic
- Current Rating:
- 10 A
- Interrupting Rating:
- 10 kA
- Series:
- WMZT
- Voltage Rating:
- 277 VAC
- Short Description:
- is a single-pole, 10-amp, DIN rail-mounted miniature circuit breaker designed for industrial and commercial applications requiring reliable overcurrent protection.
MSRP $156.00Surplus $20.80 -
Eaton WMZT1C20 Miniature Circuit Breakers (MCBs) EA
MSRP $84.36Surplus $30.76Eaton WMZT1C20 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-9291 Brand: Eaton MPN: WMZT1C20 UPC: Shipping Weight: 0.35 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-9291
- Mounting:
- DIN Rail
- Number of Poles:
- 1
- Voltage Rating:
- 277/480 VAC 50/60 Hertz, 48 VDC
- Short Description:
- UL 489 WMZT DIN RAIL MINIATURE CIRCUIT BREAKER
- Terminal Type:
- Standard Box
- Current Rating:
- 20 A
- Interrupting Rating:
- 10 kA (UL/CSA), 15 kA (IEC)
- CAD Drawings:
- Eaton_41269_1_CAD.pdf
- Catalog:
- Eaton_32246_V9T1_3_V9T1_25_V9T1_26_CAT.pdf
- Type:
- Thermal Magnetic, C Protection Curve, Miniature
- Size:
- 3 Inch Width x 0.697 Inch Depth x 4.134 Inch Height
- Approval:
- UL 489, CSA 22.2, CE
- Country of Origin:
- Mexico
MSRP $84.36Surplus $30.76 -
Eaton WMZT1D06T Other Circuit Breakers EA
MSRP $172.00Surplus $30.02Eaton WMZT1D06T Other Circuit Breakers EA​ ARCA SKU: C15-9398 Brand: Eaton MPN: WMZT1D06T UPC: Shipping Weight: 0.30 lbs. Shipping Height: 1.00 In. Shipping Length: 3.00...- SKU:
- C15-9398
- Number of Poles:
- 1
- Mounting:
- DIN Rail
- Country of Origin:
- Mexico
MSRP $172.00Surplus $30.02 -
Eaton WMZT1P6T Circuit Breaker Accessories
MSRP $45.00Surplus $15.85Eaton WMZT1P6T Circuit Breaker Accessories​ ARCA SKU: C15-11320 Brand: Eaton MPN: WMZT1P6T UPC: 7866852600378 Shipping Weight: 0.15 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-11320
- TS PIK:
- 123511638
- Country of Origin:
- Spain
- Short Description:
- UL 489 WMZT DIN RAIL MINIATURE CIRCUIT BREAKER ACCESSORY - BUS BAR
MSRP $45.00Surplus $15.85 -
Eaton WMZT1P6TSP Circuit Breaker Accessories
MSRP $55.50Surplus $20.12SKU: C15-11790 Brand: Eaton MPN: WMZT1P6TSP UPC: Shipping Weight: 0.15 lbs. Shipping Height: 1.00 In. Shipping Length: 7.00 In. Shipping Width: 4.00 In. Product...- SKU:
- C15-11790
- TS PIK:
- 123511670
- Short Description:
- BUS BAR - 1 POLE - 6 TERMINALS
- Country of Origin:
- Germany
MSRP $55.50Surplus $20.12 -
Eaton WMZT2C40 Other Circuit Breakers EA
MSRP $202.02Surplus $55.62Eaton WMZT2C40 Other Circuit Breakers EA​ ARCA SKU: C15-9066 Brand: Eaton MPN: WMZT2C40 UPC: 7866852569002 Shipping Weight: 0.60 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-9066
- Number of Poles:
- 2
- Mounting:
- DIN Rail
- Country of Origin:
- Mexico
MSRP $202.02Surplus $55.62
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