Square D Q221125BC Circuit Breaker, 125A, 2-Pole, 240V

The Square D Q221125BC circuit breaker is crafted for demanding industrial service, maintenance, and replacement projects. With a 125 A rating, a sturdy 2-pole design, and 240 V operation, it delivers dependable overcurrent protection for your essential 240-volt circuits. Built to integrate with Square D panels and systems, this part-number-specific breaker helps you keep critical equipment protected and downtime to a minimum.

Why this breaker stands out

• Part-number precision — Q221125BC is designed to fit where Square D Q-series breakers are specified. Always verify fit by part number and your application requirements to ensure a seamless install.
• Robust 125 A protection — Ideal for high-demand feeders and 240 V circuits feeding motors, pumps, and industrial controls, delivering reliable interruption when faults occur.
• 2-pole construction for 240 V — Provides simultaneous protection of both hot lines, maintaining correct phasing and safer operation for dual-leg loads.
• Industrial-grade reliability — Built to endure the rigors of maintenance and replacement tasks in busy facilities, helping you minimize unplanned outages.

Use cases and how you’ll benefit

• Replacing worn or tripped breakers in service panels serving heavy equipment, conveyors, or HVAC systems that run on 240 V.
• New installations where a 2-pole, 125 A protection device is required for a high-load subfeed or feeder to large machinery.
• Maintenance projects where compatibility with existing Square D panels is essential to maintain electrical protection coordination.

Compatibility, installation tips, and support

To ensure a perfect fit, confirm that your application requires a 2-pole, 125 A, 240 V circuit breaker and that the device matches the Q-series specification in your Square D panel. If you’re unsure about compatibility, we’re ready to assist—simply reach out and we’ll help verify fit by part number and application requirements.

Key specifications

• Amperage: 125 A
• Poles: 2
• Voltage: 240 V
• Manufacturer: Square D
• Part Number: Q221125BC

Choosing the right breaker is about confidence and compatibility. The Square D Q221125BC delivers clear part-number assurance, solid protection for your 240 V circuits, and a straightforward path to a reliable electrical protection strategy in industrial settings. If this exact specification aligns with your panel and application requirements, it’s a direct-fit option designed to keep your equipment operating safely and efficiently.