Free shipping on orders over $90

Expedited options are available at checkout.

3 PM shipping cutoff

Orders placed Monday–Friday before 3 PM ship the same day.

Up 24 months warranty.

24 months for NEW and 12 months for RECONDITIONED.

30-day returns

For unopened, unused items in original packaging. Contact us before returning.

Square D QO220 20A 2-Pole 120/240V QO Circuit Breaker

Only 5 left
SKU: QO220 USED
Regular price $18.90
Regular price -6% $20.00 Sale price $18.90
Condition
Payment methods
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • USDC
  • Visa

Overview

The Square D QO220 is a 20 A, two-pole common-trip QO circuit breaker for compatible Square D QO load centers. It provides plug-in thermal-magnetic protection at 120/240 VAC with a 10 kA interrupting rating and Visi-Trip indication.

Key Features

  • Protection: Common-trip thermal-magnetic operation opens both poles together during qualifying overload or short-circuit conditions.
  • Installation: Plug-in bus mounting with pressure-plate terminals accepting 14–8 AWG copper or aluminum conductors.
  • Compatibility: For compatible Square D QO load centers and enclosures listed to accept QO220.
  • Performance: 20 A, two-pole, 120/240 VAC operation; UL Listed, CSA certified, and HACR rated.

Specifications

  • Manufacturer / model: Square D QO220
  • Series: QO
  • Current / poles / phase: 20 A, 2 poles, single phase
  • Voltage / interrupting rating: 120/240 VAC, 10 kA
  • Protection: Common-trip thermal magnetic
  • Mounting / terminals: Plug-in; pressure plate
  • Conductor range: 14–8 AWG copper or aluminum
  • Temperature rating: 104°F (40°C)
  • Certifications: UL Listed; CSA certified; HACR rated

Common Applications

  • 20 A two-pole circuits in compatible QO panels.
  • 120/240 V equipment and multiwire circuits designed for a common-trip two-pole breaker.
  • Exact-model replacement after confirming equipment listing, circuit voltage, conductor size, and applicable electrical-code requirements.

Free shipping on eligible orders over $90. Our shipping cutoff is 3 PM, Monday–Friday. Available shipping services and delivery estimates are shown at checkout.

See our shipping policy for eligibility and exclusions. Orders are delivered; our warehouse is closed to the public.

Your product is covered by a 12 month Warranty or more if you opted for the extended warranty. Make sure you register your product.

Product Specifications

  • Brand Square D
  • Series QO
  • Model QO220
  • Breaker Type Thermal Magnetic and Regular Breaker
  • Frame Type NA
  • Phase 1 Phase
  • Pole 2 Pole
  • Voltage 120/240V
  • Amp 20
  • AIC Interrupting Rating 10 kA
  • Terminal Connection Pressure Plate
  • Minimum Wire Gauge 14 AWG
  • Maximum Wire Gauge 8 AWG
  • Mounting Type Plug-ON,IN
  • Temperature Rating 104°F (40°C)
  • Certifications UL Listed, CSA Certified, and HACR Rated