NB125 - 125Amp Circuit Breaker
- 125 Amp
- 10k @ 120/240VAC
- 2 Pole
Purchase Options: New Aftermarket Replacement
NB125 - 125Amp Circuit Breaker Description
NB125 - 125Amp Circuit Breaker
The NB125 125 amp circuit breaker is designed to protect 120/240V electrical systems that carry higher electrical loads. This 2-pole, bolt-on breaker uses a thermal magnetic trip mechanism to help guard against both overloads and short circuits. With a 125A rating and a 10kA interrupting capacity, it’s commonly used in commercial and residential panelboards where dependable performance is required. The bolt-on connection provides a tight, secure fit to the panel bus, which helps maintain proper contact over time. For electricians replacing an existing NB frame breaker, the NB125 offers a practical, no-nonsense solution for maintaining circuit protection.
Key Features and Benefits
- 125 Amp Rating: Suitable for circuits requiring up to 125 amps of protection.
- 2-Pole Configuration: Designed for use on 120/240VAC systems.
- Bolt-On Mounting: Attaches securely to compatible panelboards.
- Thermal Magnetic Trip: Helps protect against sustained overloads and instantaneous short circuits.
- 10kA A.I.C. Rating: Rated to interrupt up to 10,000 amps at 120/240VAC.
Technical Specifications
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Model: NB125
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Amperage: 125A
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Poles: 2
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Voltage Rating: 120/240VAC
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Interrupting Rating: 10kA @ 120/240VAC
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Frame Type: NB
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Mounting Type: Bolt-On
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Dimensions: 2.00" W x 4.25" L x 2.31" D
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Weight: 2.25 lbs
Material Compliance and Certifications
- The NB125 is built to meet standard industry requirements for molded case circuit breakers. It is intended for installation in properly rated electrical equipment and panelboards. As with any breaker replacement, compatibility with the panel should be verified prior to installation.
Where It Works Best
- This 125 amp double pole breaker is often used in commercial buildings, light industrial spaces, and larger residential applications. It works well in panelboards supplying power to HVAC systems, subpanels, and other 240V equipment. If you’re replacing an NB frame breaker or performing routine electrical maintenance, the NB125 is a straightforward option for restoring circuit protection.
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
- Width:2.0
- Height:4.25
- Depth:2.31
- Poles:2
- Amperes:125
- A.I.C. Rating & Volts:10k @ 120/240VAC
- Type:NB
- Approx Dimensions:2.00"W x 4.25"L x 2.31"D
- Additional Notes:Bolt-on, Thermal Magnetic Circuit Breaker.*Note: For the *New* offering, as this item is no longer manufactured by FPE, in it's place, we are offering a New after-market replacement circuit breaker specially designed to replace and fit into the existing location of the NB125
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
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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).