2B125 - 125Amp Circuit Breaker

- 125 Amp
- 10k @ 240VAC
- 2 Pole
Purchase Options: Refurbished
2B125 - 125Amp Circuit Breaker Description
2B125 - 125Amp Circuit Breaker
Choose the 2B125 125 Amp circuit breaker when you need reliable main breaker protection for a residential 240V system. This 2-pole breaker delivers 125 amps of overcurrent protection, making it a practical solution for homes with larger electrical demands. It actively protects your panel and connected circuits from overloads and short circuits, helping reduce the risk of damage to wiring and equipment. With a 10k AIC rating at 240VAC, the 2B125 interrupts fault currents within its rating and keeps your electrical system operating safely. The 2B frame provides steady performance you can count on in everyday residential applications.
Key Features and Benefits
- Delivers 125 Amps of Protection – Supports higher residential electrical loads.
- Uses a 2-Pole Design – Handles 240V applications with confidence.
- Provides 10k AIC @ 240VAC – Interrupts fault currents within its rated capacity.
- Features a 2B Frame – Maintains consistent, dependable operation.
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Simplifies Main Breaker Replacement – Fits compatible residential panels for service upgrades or replacements.
Technical Specifications
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Model Number: 2B125
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Number of Poles: 2
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Amperage Rating: 125 Amps
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Voltage Rating: 240VAC
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Interrupting Rating: 10k AIC
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Frame Type: 2B
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Approximate Ship Weight: 4.5 lbs
Material Compliance and Certifications
- Industry Standards: The 2B125 circuit breaker meets applicable industry standards for residential electrical protection.
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Quality Processes: Manufacturers produce each unit under controlled quality processes to support safe, code-compliant installation and dependable performance in service panels.
Where It Works Best
- Install the 2B125 as a residential main breaker or use it in any application that requires a 125 amp, 240V 2-pole circuit breaker. It works especially well in homes that power central air systems, electric water heaters, ranges, and other high-demand equipment. When you need straightforward, reliable main breaker protection, this 125A breaker gets the job done.
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Specifications
- Poles:2
- Amperes:125
- A.I.C. Rating & Volts:10k @ 240VAC
- Type:2B
- Additional Notes:Main Residential Circuit Breaker
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE shipping on breaker orders over $100 and all other items with orders over $500.
CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).
Same Day Shipping
We strive to ship out your items within one business day.
In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).

