NB2125H | Circuit Breaker | 125A | 2-Pole | 240V

The NB2125H Industrial Circuit Breaker offers dependable overcurrent protection for 240V systems, rated at 125A. Built for maintenance, retrofit, and replacement projects where exact specifications are essential, this 2-pole unit helps keep critical equipment protected with minimal downtime.

• Exact electrical ratings: 125A amperage, 2-Pole configuration, 240V designed to guard both hot legs in a standard 240V circuit.
• Industrial-grade reliability: Robust construction built to withstand the demands of commercial and light-industrial environments.
• Replacement-ready and retrofit-friendly: The NB2125H is the definitive reference for compatibility—use the part number NB2125H to verify fit before ordering.
• Designed for maintenance and upgrades: Ideal for replacing aging breakers or upgrading panels to maintain safety margins and reliable shutdowns during faults.
• Balanced protection in one action: Two-pole design ensures simultaneous disconnect of both hot legs on a 240V circuit, enhancing safety and equipment protection.

How to verify compatibility

Ensure your system requires a 125A, 2-Pole, 240V breaker and that NB2125H matches your panel’s specs. The part number NB2125H is the best reference for compatibility, so cross-check it against your panel model and the intended circuit before purchase.

Practical use cases

Use this breaker during panel maintenance, when performing retrofits to modernize protection schemes, or as a precise replacement to restore reliable overcurrent protection for 125A circuits in industrial or commercial equipment setups.