Square D | QO120HID | Circuit Breaker | 20A | 1-Pole | 240V

Square D QO120HID is a 20-amp, 1-pole, 240-volt circuit breaker designed for dependable protection in maintenance, retrofit, and replacement projects. When your panel requires a precise match, this model delivers the exact specifications you need without guesswork.

Key details at a glance:

• Amperage: 20A
• Poles: 1-Pole
• Voltage: 240V
• Part number: QO120HID — the best reference for compatibility

Why this model stands out for real-world use

• Maintenance-ready: Ideal for replacing a failed unit in existing Square D QO panels without altering other components.
• Retrofit-friendly: A straightforward, drop-in solution when upgrading or updating 240V circuits in compatible panels.
• Clear compatibility reference: Rely on the part number QO120HID to verify fit and ratings before purchase, reducing the risk of mismatches.
• Focused protection: Specifically rated to safeguard 240V circuits with a 20A capacity, helping prevent equipment damage and electrical hazards.

How to use and ensure the best results

• Confirm fit and ratings before ordering—the QO120HID part number is the most reliable compatibility reference.
• Inspect the panel type and ensure it accepts QO-series breakers for a seamless replacement or retrofit.
• Follow standard electrical safety practices: power down the system, test circuits, and consult a qualified electrician if needed.

This 20A, 1-pole, 240V Square D breaker is purpose-built for scenarios where precise compatibility, straightforward replacement, and dependable protection are the top priorities. Whether you’re maintaining an aging installation, upgrading a panel, or replacing a faulty unit, the QO120HID delivers consistent performance that electricians trust.