Square D | QOB1151021 | Circuit Breaker | 15A | 1-Pole | 240V

Meet the Square D QOB1151021 Circuit Breaker—a purpose-built protection device engineered for reliability in maintenance, retrofit, and replacement projects. This 15A, 1-Pole, 240V breaker is designed to deliver precise electrical protection where exact specifications matter, enabling safer, more dependable operation of your circuits. The part number QOB1151021 is your best reference for compatibility, so please confirm fit and ratings before ordering.

Key specifications

• Amperage: 15A
• Poles: 1-Pole
• Voltage: 240V
• Part number: QOB1151021

Why this Square D breaker stands out

• Precise compatibility with the QOB1151021 reference ensures you’re restoring protection to the exact circuit configuration required by your panel.
• Designed for maintenance, retrofit, and replacement workflows, making it a dependable choice when upgrading or restoring circuit protection.
• Backed by the trusted Square D lineage, offering clear protection against overloads on 240V circuits when the ratings match your system.

Ideal use cases

• Replacing a failed breaker in an existing Square D panel where the 15A, 1-Pole, 240V specification is needed.
• Retrofitting circuits to ensure correct protection levels during modernization projects.
• Routine maintenance cycles that require restoring proper circuit interruption and safety.

Compatibility and verification tips

To ensure a perfect match, rely on the part number QOB1151021 as the compatibility reference. Always compare the panel labeling and rating to confirm that the 15A, 1-Pole, 240V configuration aligns with your installation before purchasing.

Note: Confirm fit and ratings before ordering to ensure seamless integration into your electrical system.