Square D | QO3020 | Circuit Breaker | 30A | 1-Pole | Plug-In

Meet the Square D QO3020 Circuit Breaker — a 30-amp, 1-pole plug-in unit designed to protect a single circuit in compatible Square D panels. Built for maintenance, retrofit, and replacement projects, this breaker delivers reliable, straightforward protection you can count on when it matters most.

Key specifications

• Amperage: 30A
• Poles: 1-Pole
• Plug-In: Yes

Notes: Confirm fit and ratings before ordering. The part number QO3020 is the best reference for compatibility.

Why this breaker stands out

• Fast, plug-in installation — designed to snap into compatible Square D panels for a quicker, less intrusive service experience.
• Single-circuit protection — a dedicated 30A capacity solution ideal for circuits that demand reliable overcurrent protection without adding complexity.
• Trustworthy compatibility — as part of the QO series, it’s engineered to align with Square D panels that accept plug-in breakers, ensuring dependable performance and lifecycle consistency.

Ideal use scenarios

• Maintenance and service work where a reliable, ready-to-install replacement is needed.
• Retrofit projects to upgrade or restore circuit protection in existing QO-compatible panels.
• Replacement for a failed or worn 30A, 1-pole breaker, helping you minimize downtime.

Installation & compatibility guidance

Before purchasing, verify that your panel accepts QO plug-in breakers and that a 1-pole, 30A rating matches the circuit you intend to protect. The QO3020 part number serves as the clearest reference for compatibility with your panel. When installing, ensure the main power is off and follow standard safety practices and panel manufacturer guidelines to achieve a secure, reliable connection.