Square D | QOU145 | Circuit Breaker | 1-Pole | 240V | Bolt-On

Meet the Square D QOU145 1-Pole 240V Bolt-On Circuit Breaker—the precise, ready-to-install solution for maintenance, retrofit, and replacement projects that require a bolt-on, single-pole device. Built to align with Square D panel configurations, this breaker delivers dependable overcurrent protection for 240V circuits when a dedicated 1-pole solution is specified.

Key reasons to choose the QOU145

• Makes compatibility clear: Model QOU145 is designed for bolt-on mounting in Square D panels, with a 1-pole, 240V rating that fits specific configurations where a single-pole 240V device is required.
• Secure bolt-on mounting: The bolt-on design provides a robust, vibration-resistant connection that stays put, reducing the risk of loose connections over time.
• Ideal for targeted installations: Optimal for maintenance, retrofit, and replacement tasks where a 1-pole 240V bolt-on breaker is specified by the panel design.
• Guaranteed reference for compatibility: The part number itself (QOU145) is the best reference to ensure you’re selecting the correct device for your panel.

What problems this solves

When your panel calls for a 1-pole 240V bolt-on breaker, the QOU145 provides precise fitment and reliable protection for your 240V circuit. It helps you maintain electrical safety, reduce downtime during replacements, and keep panel configurations consistent with manufacturer recommendations.

Use cases and practical scenarios

• Retrofit projects where existing equipment relies on Square D bolt-on single-pole 240V breakers.
• Maintenance replacements in commercial spaces that use a 240V single-pole configuration.
• Repairs or upgrades in panels that specify QOU145 as the compatible 1-pole, 240V bolt-on option.

How to ensure a confident purchase

• Always verify fit and ratings before ordering—use the part number QOU145 as your primary compatibility reference.
• Consult your panel’s documentation to confirm that a bolt-on, 1-pole 240V device matches the required configuration.
• Source and handle with power off, following standard electrical safety practices to protect yourself and the system during replacement.