Circuit Breakers
Circuit Breakers - Source rare and hard-to-find breakers with ease
At ARCA Supply, we know that circuit breakers are essential to safeguarding electrical systems, protecting them from overloads and short circuits. Whether you're managing a commercial facility, maintaining industrial equipment, or working on residential projects, having the right circuit breakers ensures uninterrupted performance and peace of mind.
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.
Explore Our Circuit Breaker Categories:
- Air Circuit Breakers (ACBs): Ideal for large-scale industrial applications, ACBs provide superior protection in high-current scenarios.
- Din Rail Mounted Circuit Breakers: These breakers are designed for quick installation in compact spaces, making them perfect for modular setups.
- Main Breakers: As a crucial part of any electrical system, main breakers ensure that circuits are effectively managed and protected from faults.
- Miniature Circuit Breakers (MCBs): Designed for residential and commercial use, MCBs are essential for protecting lower power circuits from damage.
- Molded Case Breakers (MCCBs): When high current protection is needed, MCCBs offer robust and durable performance.
- Motor Circuit Protectors (MCPs): Specifically engineered to protect motors, MCPs offer fast response times to prevent equipment damage.
- Circuit Breaker Accessories: From trip units to mounting kits, we stock a variety of accessories to enhance the functionality of your breakers.
Leading Brands We Carry:
At ARCA Supply, we carry a comprehensive lineup of top brands to ensure you get the best quality and reliability. Our inventory includes trusted names such as Eaton, Square D, Siemens, and General Electric. With over 2,600 Eaton products and hundreds from brands like ABB, Schneider Electric, and Leviton, you can be confident in finding exactly what you need.
Choose the Right Circuit Breaker:
When selecting a circuit breaker, factors such as current rating, voltage rating, and mounting style are critical. Our range includes options for:
- Current Ratings: From 15A to 600A, ensuring the right protection for every application.
- Voltage Ratings: With options ranging from 120V to 600V for both AC and DC applications.
- Mounting Types: Choose from plug-on, DIN rail, or bolt-on mountings to match your installation requirements.
Why Choose ARCA Supply?
As a trusted distributor specializing in hard-to-find electrical components, we ensure that our circuit breakers meet the highest industry standards. Our commitment to the circular economy also means that unsold products are responsibly recycled, helping to reduce waste while supporting your projects.
Explore our extensive collection of circuit breakers today and find the perfect solution for your electrical system’s needs.
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Air Circuit Breakers (ACBs)
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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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Circuit Breaker Accessories
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Eaton TP395 Outlet Box
MSRP $42.00Surplus $26.89Eaton TP395 Outlet Box ARCA SKU: O28-1996 Brand: Eaton MPN: TP395 UPC: 786189103953 Shipping Weight: 0.80 lbs. Shipping Height: 3.00 In. Shipping Length: 4.00 In. Shipping...- SKU:
- O28-1996
- Approval:
- UL 514A/514B/514C
- Material:
- Drawn Steel
- Standard Package:
- 25
- Width:
- 4 Inch
- Height:
- 4 Inch
- Depth:
- 2-1/8 Inch
- Capacity:
- 30.3 Cu Inch
- Knockout Size:
- (3) 1/2 Inch Bottom (2) 3/4 Inch Bottom
- Knockout Size:
- (8) 1/2 Inch Side
- Knockout Size:
- (4) 3/4 Inch Side
- Number of Knockouts:
- 17
- Knockout Location:
- (5) Bottom
- Knockout Location:
- (12) Side
- Short Description:
- 4" x 2-1/8" x 4", 30.3 Cu Inch, 17-Knockout, Steel, Drawn
- Catalog:
- Eaton-CrouseHinds_00047_6_CAT.pdf
- Country of Origin:
- China
MSRP $42.00Surplus $26.89 -
Eaton TS32LD Circuit Breaker Accessories Load Terminals Shields
MSRP $42.00Surplus $9.80Eaton TS32LD Circuit Breaker Accessories Load Terminals Shields​ ARCA SKU: C15-4104 Brand: Eaton MPN: TS32LD UPC: 786679849385 Shipping Weight: 0.05 Shipping Height: 2.00 In. Shipping...- SKU:
- C15-4104
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY TERMINAL, LOAD TERMINAL SHIELD, THRE
MSRP $42.00Surplus $9.80 -
Eaton UVH1LA08 Circuit Breaker Accessories 127V 0Ph 0HP 0W 0ft 0 PSI 0Wire 0Jaws 0RPMs 0Cir 0Sp 0BOX
MSRP $1,600.00Surplus $176.08SKU: C15-4654 Brand: Eaton MPN: UVH1LA08 UPC: Shipping Weight: 0.15 lbs. Shipping Height: 3.00 In. Shipping Length: 5.00 In. Shipping Width: 5.00 In. Product...- SKU:
- C15-4654
- Volts:
- 127 V
- Country of Origin:
- Dominican Republic
MSRP $1,600.00Surplus $176.08 -
Eaton UVH4LP11K Circuit Breaker Accessories EA
MSRP $1,149.12Surplus $296.57SKU: C15-9436 Brand: Eaton MPN: UVH4LP11K UPC: Shipping Weight: 0.50 lbs. Shipping Height: 5.00 In. Shipping Length: 5.00 In. Shipping Width: 5.00 In. Product...- SKU:
- C15-9436
- TS PIK:
- 107004670
- Short Description:
- EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY UNDERVOLTAGE RELEASE, UNDERVOLTAGE R
- Country of Origin:
- United States
MSRP $1,149.12Surplus $296.57 -
Eaton UVH5LP23K Circuit Breaker Accessories
MSRP $772.00Surplus $513.38SKU: C15-9865 Brand: Eaton MPN: UVH5LP23K UPC: 78667902725 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-9865
- TS PIK:
- 114196660
- Country of Origin:
- United States
MSRP $772.00Surplus $513.38 -
Eaton WMS1D10 Miniature Circuit Breakers (MCBs) WMS1D 1P 10A 480V 50/60Hz 1Ph
MSRP $97.78Surplus $11.80Eaton WMS1D10 Miniature Circuit Breakers (MCBs) WMS1D 1P 10A 480V 50/60Hz 1Ph​ ARCA SKU: C15-4249 Brand: Eaton MPN: WMS1D10 UPC: Shipping Weight: 0.25 Shipping Height: 1.00 In. Shipping...- SKU:
- C15-4249
- Approval:
- UL 1077
- Approval:
- UL
- Approval:
- CSA 22.2
- Amps:
- 10 A
- Mounting:
- DIN Rail
- Poles:
- 1
- Size:
- 0.71 Inch W x 2.44 Inch D x 3.46 Inch H
- Terminal Trip Setting:
- 0
- Type:
- Current Limiting
- Volts:
- 240/415 VAC (IEC)
- Volts:
- 120/277 VAC (UL/CSA)
- Volts:
- 65 VDC
- Gauge:
- 14 to 6 AWG
- Short Description:
- 240/415 VAC IEC, 120/277 VAC UL/CSA, 65 VDC, 10 A, 1-Pole, DIN Rail Mount, Current Limiting, Supplementary Protector
- Series:
- WMS
- Data Sheet:
- EATCORE00314_11_38_11_42.pdf
- Wire Size:
- 14 to 6 AWG
- Catalog:
- EATCORE00281_26.pdf
- Number of Poles:
- 1
- Current Rating:
- 10 A
- Voltage Rating:
- 240/415 VAC (IEC), 120/277 VAC (UL/CSA), 65 VDC
MSRP $97.78Surplus $11.80 -
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 $11.41Eaton 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 $11.41 -
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 $16.98Eaton 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 $16.98 -
Eaton WMZS3D10 Miniature Circuit Breakers (MCBs) EA
MSRP $233.10Surplus $129.91Eaton WMZS3D10 Miniature Circuit Breakers (MCBs) EA​ ARCA SKU: C15-9063 Brand: Eaton MPN: WMZS3D10 UPC: 7866852599016 Shipping Weight: 0.75 lbs. Shipping Height: 3.00 In. Shipping...- SKU:
- C15-9063
- Short Description:
- UL 1077 WMZS DIN RAIL SUPPLEMENTARY PROTECTOR
- Country of Origin:
- United States
MSRP $233.10Surplus $129.91 -
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 $22.44Eaton 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
MSRP $156.00Surplus $22.44 -
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 $32.38Eaton 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 $32.38 -
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
MSRP $45.00Surplus $15.85