Square D QO220 - 20A 2-Pole Circuit Breaker for QO Load Centers

Square D QO220 - 20A 2-Pole Circuit Breaker for QO Load Centers

Trying to figure out which breaker fits your QO panel for a 240V appliance? The Square D QO220 is a 2-pole circuit breaker rated 20 amps at 120/240 volts, built to protect the wiring feeding things like a water heater, dryer, or air conditioning unit. It plugs directly into Square D QO load centers and NQ panelboards, so there is no guessing on compatibility once you confirm your panel type.

This breaker is UL listed and uses a thermal-magnetic trip, meaning it protects against both a slow overload and a sudden short circuit. A visual Visi-Trip indicator lets you see right away if the breaker has tripped, which makes troubleshooting a dead circuit much easier.

Common Applications

• 240V household circuits such as water heaters, dryers, and AC units
• HVAC equipment circuits requiring HACR-rated protection
• Replacing a worn out or damaged 2-pole breaker in a QO panel
• Adding a new 240V circuit to an existing QO load center

Key Features

• Easy plug-in install: Fits directly into QO load centers, no special tools or bolt-on kit needed.
• Visi-Trip indicator: Shows a clear visual signal when the breaker has tripped.
• Protects the whole 240V circuit: Both poles trip together, so the entire circuit shuts off on a fault.
• Reliable fault protection: Rated to interrupt up to 10,000 amps of fault current at 120/240VAC.
• Flexible wiring: Accepts 14 to 8 AWG copper or aluminum wire.

Specifications

• Manufacturer: Square D (Schneider Electric)
• Catalog Number: QO220
• Poles: 2
• Current Rating: 20A
• Voltage Rating: 120/240 VAC, 48 VDC
• Interrupt Rating: 10kA at 120/240VAC, 10kA at 120VAC, 5kA at 48VDC
• Frequency: 50/60 Hz
• Trip Type: Thermal Magnetic
• Frame Size: QO/100A
• Mounting: Plug-In
• Termination: Pressure Plate
• Wire Size: 14-8 AWG, copper or aluminum
• Standards: UL Listed (UL 489), CSA
• Ambient Rating: 104 deg F (40 deg C)

Product Identification

• Dimensions: 2.91 in D x 1.50 in W x 3.00 in H
• Weight: 0.50 lb
• UPC: 785901400363

FAQ

• How do I know if the QO220 fits my panel?
  It is designed for Square D QO load centers and NQ panelboards. Check your panel label or existing breakers for the QO name before ordering.
• What is a thermal-magnetic breaker?
  It is a breaker that trips two ways, slowly on a sustained overload and instantly on a short circuit, so you get protection from both types of problems.
• Can this breaker be used for an air conditioner?
  Yes, it is HACR rated, which covers heating, air conditioning, and refrigeration equipment.
• What wire size works with the QO220?
  It accepts 14 to 8 AWG copper or aluminum wire.
• Does the QO220 protect against arc faults or ground faults?
  No, it is a standard breaker for overload and short circuit protection only. Square D makes separate AFCI and GFCI breakers for those needs.