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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Siemens RHOSVD Circuit Breaker Accessories EA
MSRP $98.00Surplus $21.76Siemens RHOSVD Circuit Breaker Accessories EA​ ARCA SKU: E30-10153 Brand: Siemens MPN: RHOSVD UPC: Shipping Weight: 0.90 lbs. Shipping Height: 17.00 In. Shipping...- SKU:
- E30-10153
- Short Description:
- 12" L, Rotary Handle Shaft for Circuit Breaker
- Type:
- Door Mounted Rotary Operator Handle
- Installation/Operator:
- SiemensAG_00472_INST.pdf
- Country of Origin:
- Mexico
- Catalog:
- SiemensAG_01698_17_126_CAT.pdf
MSRP $98.00Surplus $21.76 -
Siemens S01MN6 Circuit Breaker Accessories EA
MSRP $2,150.00Surplus $569.38SKU: C15-10614 Brand: Siemens MPN: S01MN6 UPC: 78364321598 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10614
- TS PIK:
- 21367757
- Country of Origin:
- Mexico
- Short Description:
- 120 VAC, Shunt Trip for MD/ND/PD/RD Frame Molded Case Circuit Breaker
- Used On:
- 800 A MD/SMD, 1200 A ND/SND, 1600 A PD/SPD, 2000 A RD Frame Molded Case Circuit Breaker
- Catalog:
- SiemensAG_01698_17_99_CAT.pdf
MSRP $2,150.00Surplus $569.38 -
Siemens SADU Circuit Breaker Accessories EA
MSRP $2,820.00Surplus $706.74SKU: C15-7506 Brand: Siemens MPN: SADU UPC: 783643087804 Shipping Weight: 0.50 lbs. Shipping Height: 3.00 In. Shipping Length: 4.00 In. Shipping Width: 8.00 In...- SKU:
- C15-7506
- Country of Origin:
- Mexico
MSRP $2,820.00Surplus $706.74 -
Siemens SCND69100A Molded Case Breakers (MCCBs) SCND6 3P 1000A 600V 50/60Hz 3Ph
MSRP $37,350.00Surplus $3,430.25SKU: C15-3445 Brand: Siemens MPN: SCND69100A UPC: Shipping Weight: 64.10 lbs. Shipping Height: 9.00 In. Shipping Length: 23.00 In. Shipping Width: 10.00 In. Product...- SKU:
- C15-3445
- Series:
- SCND6-A
- Type:
- Electronic
- Type:
- Solid State
- Approval:
- UL 489
- Approval:
- IEC 947-2
- Size:
- 9 Inch Width x 8.25 Inch Depth x 16 Inch Height
- Volts:
- 600 VAC
- Amps:
- 32 A
- Poles:
- 3
- Interrupting Rating:
- 200 kA at 240 VAC (UL 489)
- Interrupting Rating:
- 100 kA at 480 Volt AC (UL 489)
- Interrupting Rating:
- 65 kA at 600 Volt AC (UL 489)
- Terminal Type:
- Line/Load Lug
- Frame Type:
- ND
- Maximum AC Voltage Rating:
- 600 V
- Short Description:
- 600 VAC, 1000 A, 100 kA, 3-Pole, 1/0 AWG to 500 KCMIL Copper/Aluminum, Line/Load Lug Terminal, MD Frame, LI Sensitrip, Electronic Trip
- Current Rating:
- 100 A
- Voltage Rating:
- 600 VAC
- Number of Poles:
- 3
- Country of Origin:
- MEX
MSRP $37,350.00Surplus $3,430.25 -
Siemens SHMD6B800LSIH Molded Case Breakers (MCCBs)
MSRP $35,000.00Surplus $9,305.17SKU: C15-11435 Brand: Siemens MPN: SHMD6B800LSIH UPC: Shipping Weight: 54.45 lbs. Shipping Height: 13.00 In. Shipping Length: 19.00 In. Shipping Width: 11.00 In...- SKU:
- C15-11435
- Current Rating:
- 800 A
- Series:
- SHMD
- Interrupting Rating:
- 65kA@480V
- Number of Poles:
- 3
- Number of Phases:
- 3
- Voltage Rating:
- 600 V
- Short Description:
- Siemens, Sentron Series, type SHMD, 3PH, 3P, 600V, 800A, 65kA@480V, Feed-Thru connection, 100% rated, complete with Sensitrip IV series trip unit with LSI - Long-Time,
- Country of Origin:
- Mexico
MSRP $35,000.00Surplus $9,305.17 -
Siemens SJ1 Circuit Breaker Accessories EA
MSRP $4,150.08Surplus $922.51SKU: L12-1907 Brand: Siemens MPN: SJ1 UPC: 783643225657 Shipping Weight: 12.55 lbs. Shipping Height: 4.00 In. Shipping Length: 20.00 In. Shipping Width: 11.00 In...- SKU:
- L12-1907
- Short Description:
- Jumbo, 1-Gang, 302/304 Smooth Stainless Steel, (1) Switch, Wallplate
- Catalog:
- HUBKELE00218_K3_K16_K27_K28.pdf
- Country of Origin:
- United States
MSRP $4,150.08Surplus $922.51 -
Siemens TA1E6125 Circuit Breaker Accessories Framed Breaker Lug 125A
MSRP $32.00Surplus $30.13Siemens TA1E6125 Circuit Breaker Accessories Framed Breaker Lug 125A​ ARCA SKU: C15-2758 Brand: Siemens MPN: TA1E6125 UPC: 783643224902 Shipping Weight: 0.05 Shipping Height: 1.00 In...- SKU:
- C15-2758
- Type:
- Line/Load Lug
- Used On:
- ED Frame Sentron Series Molded Case Circuit Breaker
- Conductor Material:
- Copper/Aluminum
- Body Material:
- Aluminum
- Maximum Conductor Size:
- 3/0 AWG (Copper)
- Maximum Conductor Size:
- 2/0 AWG (Aluminum)
- Minimum Conductor Size:
- 3 AWG (Copper)
- Minimum Conductor Size:
- 1 AWG (Aluminum)
- Number of Conductors:
- 1
- Maximum Breaker Current Rating:
- 125 Ampere
- Quantity:
- 1
- Short Description:
- 3 to 3/0 AWG Copper/1 to 2/0 AWG Aluminum, Aluminum, Line/Load Side, Mechanical
- Catalog:
- SiemensAG_01854_22_CAT.pdf
- Installation/Operator:
- SiemensAG_00181_INST.pdf
- Country of Origin:
- Mexico
MSRP $32.00Surplus $30.13 -
Siemens TA1Q1 Circuit Breaker Accessories EA
MSRP $6.31Surplus $2.82Siemens TA1Q1 Circuit Breaker Accessories EA​ ARCA SKU: L20-3296 Brand: Siemens MPN: TA1Q1 UPC: 78364316142 Shipping Weight: 0.15 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- L20-3296
- TS PIK:
- 117091424
- Catalog:
- SiemensAG_01698_17_8_17_117_17_122_CAT.pdf
- Used On:
- BQ/BQH/HBQ Frame Molded Case Circuit Breaker
- Country of Origin:
- Mexico
- Short Description:
- 8 to 1 AWG Copper/6 to 1/0 AWG Aluminum, Line Side, Mechanical, Lug for 45 to 125 A BQ/BQH Molded Circuit Breaker (6 per Pack)
- Type:
- Line Lug
MSRP $6.31Surplus $2.82 -
Siemens TA2J630 Circuit Breaker Accessories EA
MSRP $84.00Surplus $22.25Siemens TA2J630 Circuit Breaker Accessories EA​ ARCA SKU: L20-3297 Brand: Siemens MPN: TA2J630 UPC: 78364319824 Shipping Weight: 0.25 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- L20-3297
- TS PIK:
- 119495727
- Country of Origin:
- Mexico
- Used On:
- SJD Frame Sentron Series Molded Case Circuit Breaker
- Installation/Operator:
- SiemensAG_00181_INST.pdf
- Short Description:
- 4 to 3/0 AWG Copper/Aluminum, Lug for SJD Frame Molded Case Circuit Breaker (1 per Pack)
- Catalog:
- SiemensAG_01698_17_87_17_118_CAT.pdf
MSRP $84.00Surplus $22.25 -
Siemens TC1Q1 Circuit Breaker Accessories
Surplus $11.21Siemens TC1Q1 Circuit Breaker Accessories​ ARCA SKU: C15-8857 Brand: Siemens MPN: TC1Q1 UPC: 66286203187 Shipping Weight: 0.90 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-8857
- Catalog:
- SiemensAG_01698_17_8_17_12_17_117_17_122_CAT.pdf
- Country of Origin:
- Mexico
- Type:
- Line Lug
- Used On:
- BQ/BQH/HBQ Frame Molded Case Circuit Breaker
- Short Description:
- 14 to 6 AWG Copper/12 to 6 AWG Aluminum, Line Side, Lug for 15 to 40 A BQ/BQH Molded Circuit Breaker (6 per Pack)
Surplus $11.21 -
Siemens U01TED60 Molded Case Breakers (MCCBs)
MSRP $2,500.00Surplus $426.80SKU: C15-8858 Brand: Siemens MPN: U01TED60 UPC: Shipping Weight: 1.00 lbs. Shipping Height: 4.00 In. Shipping Length: 8.00 In. Shipping Width: 5.00 In. Product...- SKU:
- C15-8858
MSRP $2,500.00Surplus $426.80 -
Siemens VR-657 Miniature Circuit Breakers (MCBs)
MSRP $175.00Surplus $30.41Siemens VR-657 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-8859 Brand: Siemens MPN: VR-657 UPC: Shipping Weight: 3.65 lbs. Shipping Height: 5.00 In. Shipping...- SKU:
- C15-8859
MSRP $175.00Surplus $30.41 -
Siemens WP68 Circuit Breaker Accessories
MSRP $2,518.00Surplus $542.06SKU: C15-11527 Brand: Siemens MPN: WP68 UPC: Shipping Weight: 114.00 lbs. Shipping Height: 22.00 In. Shipping Length: 75.00 In. Shipping Width: 9.00 In. Product...- SKU:
- C15-11527
- Short Description:
- 20" x 5.75" x 68", Steel, NEMA 3R/12, Enclosure for P1/P2 Panelboard
- Catalog:
- SiemensAG_01829_10_12_10_33_10_43_CAT.pdf
- Country of Origin:
- United States
- Data Sheet:
- SiemensAG_07630_1_DATA.pdf
MSRP $2,518.00Surplus $542.06 -
Square D 60115 Miniature Circuit Breakers (MCBs)
MSRP $236.34Surplus $43.17Square D 60115 Miniature Circuit Breakers (MCBs)​ ARCA SKU: E30-10181 Brand: Square D MPN: 60115 UPC: Shipping Weight: 0.30 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- E30-10181
- Size:
- 18 Inch Width x 18 Inch Depth x 15 Inch Height
- Catalog:
- UTTRMOE00005_479.pdf
- Short Description:
- La Costa Greenery
- Type:
- La Costa Greenery
MSRP $236.34Surplus $43.17 -
Square D 81361284-002 Circuit Breaker Accessories EA
MSRP $15.00Surplus $4.05Square D 81361284-002 Circuit Breaker Accessories EA​ ARCA SKU: C15-11195 Brand: Square D MPN: 81361284-002 UPC: Shipping Weight: 29.60 lbs. Shipping Height: 12.00 In. Shipping...- SKU:
- C15-11195
MSRP $15.00Surplus $4.05 -
Square D A1L120 Miniature Circuit Breakers (MCBs)
MSRP $150.00Surplus $42.82Square D A1L120 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-7073 Brand: Square D MPN: A1L120 UPC: Shipping Weight: 0.55 lbs. Shipping Height: 4.00 In. Shipping...- SKU:
- C15-7073
- Number of Poles:
- 1
MSRP $150.00Surplus $42.82 -
Square D A1L230 Miniature Circuit Breakers (MCBs)
MSRP $135.00Surplus $68.60Square D A1L230 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-7074 Brand: Square D MPN: A1L230 UPC: Shipping Weight: 1.10 lbs. Shipping Height: 2.00 In. Shipping...- SKU:
- C15-7074
- Number of Poles:
- 2
MSRP $135.00Surplus $68.60 -
Square D AL100FA Circuit Breaker Accessories EA
MSRP $75.00Surplus $45.20SKU: C15-10617 Brand: Square D MPN: AL100FA UPC: 78590106074 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10617
- TS PIK:
- 115542981
- Catalog:
- SchneiderElectric-SquareD_03392_11_8_11_16_CAT.pdf
- Data Sheet:
- SchneiderElectric-SquareD_12205_1_DATA.pdf
- Series:
- AL
- Short Description:
- 100 A, 12 AWG/14 to 1/0 AWG, 1-Conductor, Standard, Mechanical Lug Kit for FA/FH/FI Series Circuit Breaker
- Prop 65 Warning:
- Yes
- Used On:
- FA/FH/FI Series Circuit Breaker
- Country of Origin:
- United States
MSRP $75.00Surplus $45.20 -
Square D AL150HD Circuit Breaker Accessories EA
MSRP $70.00Surplus $53.77SKU: C15-10618 Brand: Square D MPN: AL150HD UPC: 78590184106 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10618
- TS PIK:
- 121233597
- Used On:
- HD/HG/HJ/HL Series Circuit Breaker
- Installation/Operator:
- SchneiderElectric-SquareD_00714_INST.pdf
- Prop 65 Warning:
- Yes
- Short Description:
- 150 A, 14 to 3/0 AWG, Aluminum/Copper, 1-Conductor, Mechanical Lug Kit for PowerPact HD/HG/HJ/HL Series Molded Case Circuit Breaker
- Data Sheet:
- SchneiderElectric-SquareD_12213_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_00097_31_33_35_37_47_CAT.pdf
- Country of Origin:
- United States
MSRP $70.00Surplus $53.77 -
Square D AL900MA Circuit Breaker Accessories
MSRP $95.00Surplus $135.66Square D AL900MA Circuit Breaker Accessories​ ARCA SKU: C15-6699 Brand: Square D MPN: AL900MA UPC: 78590136875 Shipping Weight: 1.00 lbs. Shipping Height: 5.00 In. Shipping...- SKU:
- C15-6699
- Series:
- AL
- Short Description:
- 1000 A, 3/0 AWG to 350 KCMIL, 3-Conductor, Standard, Mechanical Lug Kit for MA/MH Series Circuit Breaker
- Used On:
- MA/MH Series Circuit Breaker
- Data Sheet:
- SchneiderElectric-SquareD_12234_1_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_00712_INST.pdf
- Prop 65 Warning:
- Yes
- Catalog:
- SchneiderElectric-SquareD_03392_11_16_CAT.pdf
- Country of Origin:
- United States
MSRP $95.00Surplus $135.66