Square D | QO2100BNS | Circuit Breaker | 2-Pole | 240V

Meet the Square D QO2100BNS, a purpose-built 2-pole circuit breaker designed for 240-volt circuits. This unit is a reliable choice for maintenance, retrofit, and replacement projects where exact specs matter, helping you restore safe, continuous power in your electrical panels.

Why the Square D QO2100BNS stands out

• Two-pole, 240V protection ensures both hot legs trip together, delivering dependable, simultaneous interruption for safer operation of 240V circuits.
• QO family compatibility designed to integrate with Square D QO panels, offering a straightforward path to replacement or upgrade within existing systems.
• Exact part for the job the QO2100BNS is the definitive reference for compatibility—use the part number to verify fit before ordering.
• Versatile for multiple project types ideal for ongoing maintenance, retrofit installations, and efficient replacements when matching specifications is required.

Use cases and practical applications

• Restoring 240V circuit protection in residential service panels after a breaker failure or routine maintenance.
• Upgrading or retrofitting old panels to ensure reliable 240V circuit protection without a full panel replacement.
• Replacing worn-out or mismatched breakers in commercial or light-industrial applications that rely on precise, compatible protection.

How to verify fit and proper installation

Before purchasing, confirm that your panel supports the Square D QO family and that the QO2100BNS matches the required ratings for your circuit. The part number is the best reference for compatibility, so cross-reference it with your panel label or manufacturer documentation. If you’re replacing a failed 240V breaker, ensure the new unit corresponds to the same pole count and voltage rating as the existing device.

Installation considerations and safety

Work on a de-energized panel and follow all local electrical codes. Use appropriate personal protective equipment, and if you’re unsure about panel compatibility or safe installation practices, consult a licensed electrician. This 2-pole 240V breaker is intended for substitution in compatible Square D QO panels, delivering reliable protection when the exact specifications align with your load center.

Note: Confirm fit and ratings before ordering. The part number QO2100BNS is your most reliable reference to ensure seamless compatibility with your Square D panel.