Square D QO 20A 1-Pole Combination ARC-Fault/Ground-Fault Circuit Breaker, 120VAC Plug-In
The Square D QO 20A 1-Pole Combination ARC-Fault/Ground-Fault Circuit Breaker is a plug-in thermal magnetic breaker for overcurrent protection with combined arc-fault and Class A 6mA ground-fault detection on 120V AC branch circuits. Part of the Square D QO range, it uses an over-center, trip-free toggle mechanism with quick-make, quick-break action. It accepts AWG 14 through AWG 8 copper or aluminum conductors, carries a 10kA interrupt rating, and requires 1 space in QO-series load centers. The unit is UL Listed for dependable, code-compliant circuit protection.
Key Features
- Electrical Rating: 20A, 1-pole, 120V AC with a 10kA interrupt rating for dependable overcurrent protection.
- Combination Protection: Combines combination ARC-fault protection with Class A 6mA ground-fault protection in a single device.
- Wire Range: Accepts AWG 14...AWG 8 copper or aluminum conductors.
- Connections: Plug-on neutral terminal connections for plug-in installation in compatible QO load centers.
- Trip Mechanism: Over-center, trip-free toggle mechanism with quick-make, quick-break action for positive switching.
- Panel Space: Requires 1 space in QO-series panelboards and load centers.
- Series: Square D QO range, for one, two, and three pole thermal magnetic circuit breaker applications on AC and DC systems.
Certifications & Compliance
- UL Listed
- Mercury Free
- ROHS Eur Compliant with Exemptions
- TAA Compliance
Technical Specifications
- Sustainable Packaging: Yes
- Mercury Free: Yes
- Number Of Spaces Required: 1
- Packaging Without Single Use Plastic: Yes
- Tier Id: 1
- ROHS Eur In Scope: Yes
- Recycled Metal Content At Cr Level: 0 %
- H And D Enrichment Function: DF
- Poles Description: 1P
- H And D Enrichment Assignment: yes
- Serviceability: No
- With Recycled Cardboard: Yes
- WEEE Product Category: 5
- Range Of Product: QO
- Compliance: TAA
- Relationshiptype: Compatible relationship
- Total Lifecycle Carbon Footprint: 10 kg CO2 eq.
- China ROHS In Scope: No
- Return Indicator: Y
- Take Back: No
- Tier: 1
- Returnability: Yes
- Field Service Division: PPIBS
Typical Applications
- Residential and Light Commercial Load Centers
- Branch Circuit Overcurrent Protection
- Arc-Fault and Ground-Fault Protected Circuits
- Panelboard Upgrades and Retrofits
- New Construction and Renovation Wiring
Why Square D?
Square D QO breakers pair a proven over-center, trip-free toggle mechanism with combination ARC-fault and Class A 6mA ground-fault protection for dependable, code-compliant performance. Backed by UL Listing and an average life duration of 15 years, this QO breaker is built for electricians and contractors who need reliable protection they can install with confidence.
Manufacturer Resources
Product Specs
- Product Type:
- Circuit Breaker
- Voltage Rating:
- 120V
- Amperage Rating:
- 20A
- Configuration:
- 1-Pole
- Connection Type:
- Plug-In
- Listing:
- UL Listed
- Series:
- QO
- Department:
- Electrical
- Product Group:
- Wiring Devices