Square D | QO120VHAFI | Circuit Breaker | 20A | 1-Pole | 120V

Introducing the Square D QO120VHAFI circuit breaker — a precise, reliable solution for maintaining safe, uninterrupted power in your electrical system. This 20A, 1-pole unit is designed for maintenance, retrofit, and replacement tasks where exact specifications matter. When you need a direct-fit part, the QO120VHAFI delivers consistent performance in Square D QO panel environments.

Key specifications

• Amperage: 20 A
• Poles: 1-Pole
• Voltage: 120 V

Why this QO120VHAFI stands out

• The QO120VHAFI uses the standard QO form factor, making it a straightforward swap in compatible Square D panels without the guesswork.
• The part number is your best guide for compatibility — confirm fit and ratings before ordering to avoid compatibility issues.
• Specifically designed for 20A, single-pole circuits common in residential and light commercial wiring, providing reliable overcurrent protection.
• Keeps downtime to a minimum during panel servicing, retrofits, or upgrades with a readily available, standard reference part.

Ideal use cases

• Replacing a failed or outdated breaker in existing Square D QO panels during routine maintenance.
• Retrofit projects where a 120V, 20A, 1-pole breaker matches the original panel specification.
• Upgrading or restoring circuit protection in residential electrical work, ensuring continuity for lighting and outlet circuits.

How to ensure a proper fit

Before ordering, verify that your panel is a compatible QO-type installation and that a 20A, 1-pole, 120V rating aligns with the circuit you’re protecting. The QO120VHAFI is identified by its part number, which is the most reliable reference for compatibility. If in doubt, consult your panel’s labeling or a qualified electrician to confirm fit and ratings.

Installation and safety tips

• Turn off power at the main disconnect and verify the absence of voltage on the circuit before handling the breaker.
• Ensure the panel cover is securely in place after installation and that the breaker is seated firmly in the bus.
• Only install in panels listed by Square D for QO breakers; use professional guidance for any retrofit project.

With the Square D QO120VHAFI, you gain a dependable, straightforward path to restoring or upgrading circuit protection in your 120V circuits. Use the part number as your compatibility compass, and rely on its exact specifications to keep your electrical system safe and up to code.