Square D QO220GFI - 20 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D QO220GFI—a 20 A, 240 V, 2-pole plug-in molded case circuit breaker offered by AmpState. Designed for reliable branch circuit protection in panelboards and load centers, this unit delivers quick installation, solid protection, and easy upgrades for residential, commercial, and light industrial systems.

• Fast plug-in connection for quick installation and painless replacement, minimizing downtime during panel upgrades or servicing.
• Thermal-magnetic trip provides stable, repeatable protection for both overloads and short circuits, helping keep circuits safe under normal and fault conditions.
• OEM-compatible design matches Square D load centers and panelboards, ensuring consistent fit, performance, and easier stocking.
• Versatile application suitable for a wide range of electrical environments, from homes to light commercial settings and small industrial facilities.

Technical details at a glance

• Manufacturer: Square D
• Part Number: QO220GFI
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 20 A
• Voltage Rating: 240 V
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for

• Electricians upgrading or stocking panelboards that rely on Square D QO components
• Facilities managers maintaining reliable 240 V branch circuit protection
• Homeowners tackling mid-range electrical upgrades in garages, workshops, or outbuildings

Use cases

• Protecting dedicated 240 V loads such as large appliances, air conditioning circuits, or workshop equipment
• Replacing a failed 2-pole breaker in compatible Square D panels to restore panel integrity
• Enabling modular, scalable protection as electrical loads expand in small to mid-size installations

Practical tips for best results

• Confirm your panelboard accepts plug-in QO-type breakers and that a 2-pole, 240 V device matches your circuit requirements.
• Choose 20 A when your circuit loads are within typical large-appliance or dryer-like loads, balancing protection with nuisance-trip avoidance.
• Keep a small stock of compatible QO breakers from AmpState for fast replacements and minimal downtime during maintenance.