Square D QO220CP - 20 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState

Square D QO220CP is a 20A, 240V, 2-pole plug-in molded case circuit breaker designed for dependable branch-circuit protection in panelboards and loadcenters. Built for quick exchanges and lasting performance, this breaker keeps your electrical system safe and your downtime minimal.

• Fast plug-in connection for effortless installation and quick replacement, reducing service time in maintenance or panel upgrades.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining thermal sensing for sustained overloads with magnetic response for immediate fault-clearing during short circuits.
• OEM-compatible design matches the exact fit and performance of the corresponding loadcenters and panelboards, ensuring reliable operation and easy retrofits.
• Versatile utility suitable for residential, commercial, and light industrial applications where dependable protection of branch circuits is essential.

Why this 2-pole plug-in breaker matters

In any panelboard or loadcenter, the QO220CP plays a critical role in preventing heat buildup and electrical fires by interrupting both conductors simultaneously on fault conditions. The plug-in format simplifies servicing, while the molded-case construction provides robust insulation and durability in field environments.

Key specifications at a glance

• Manufacturer: Square D
• Part Number: QO220CP
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 20A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for

Homeowners upgrading a panel, electricians performing routine maintenance, or facility managers outfitting light commercial spaces. If you’re protecting circuits feeding outlets, lighting, HVAC, or small machinery, this 2-pole plug-in breaker delivers reliable, code-compliant protection with straightforward installation.

Practical installation and use tips

• Verify that your panelboard or loadcenter is compatible with the QO family before replacement.
• Ensure the panel is de-energized and follow standard safety practices when removing or installing breakers.
• Keep a spare 2-pole plug-in breaker on hand for faster maintenance and reduced downtime.
• Confirm that the load does not exceed the 20A rating for the circuit being protected to avoid nuisance trips.