Square D | QO120K | Circuit Breaker | 20A | 1-Pole | 240V | Plug-In

Meet the Square D QO120K, a genuine plug-in circuit breaker designed for reliable 20-amp protection in 240V circuits. Built to integrate seamlessly with Square D QO panels, this 1-pole breaker delivers dependable overcurrent protection while keeping installation straightforward for maintenance, retrofit, or replacement projects.

Ideal for electricians and savvy homeowners tackling panel upgrades or repairs, the QO120K offers a practical solution when you need to refresh a 240V, 20A branch circuit without reconfiguring your entire panel. Its plug-in design means quicker swaps and fewer wiring steps, helping you restore circuit safety with less downtime.

• Amperage: 20A
• Poles: 1-Pole
• Voltage: 240V
• Design: Plug-In for quick replacement in compatible Square D QO panels
• Reference: Part number QO120K ensures precise compatibility

Compatibility and fit are crucial for a safe, effective retrofit. Before ordering, confirm that the mode matches your panel’s requirements by using the part number QO120K as the primary reference. This ensures you get the exact 20A, 1-pole, 240V plug-in breaker that your system expects.

Use cases to consider:

• Replacing a failed or tripped 20A, 1-pole breaker in a Square D QO panel
• Upgrading or retrofitting a 240V circuit that needs reliable 20A protection
• Maintenance projects where matching QO-series components are required for consistent protection and panel compatibility

Why choose this model? It’s a purpose-built, genuine Square D solution that aligns with QO-series panels, offering trustworthy performance and straightforward installation for real-world electrical maintenance and upgrades. If you’re aiming for a compatible, ready-to-install 20A 240V plug-in breaker, the QO120K is designed to fit your needs and keep your system protected.

Pro tips for best results: verify panel labeling for QO-series compatibility, keep the main power off during replacement, and rely on the part number QO120K as your primary reference to ensure a precise match for your panel’s specifications.