GE Q-Line THQL 20-Amp 1-Pole Dual function AFCI/GFCI Circuit Breaker - 71223235

• Provides ground fault and arc fault circuit protection

• LED blinks on trip to show the last know trip condition

• Automatic and continuous self-testing feature

• GE DFCI has important features for assisting you or your electrician in troubleshooting a trip, should the DFCI trip, the yellow LED will blink to indicate the last known trip condition

• Indicates the last known trip condition by illuminating LED appearing for 5 seconds each time the DFCI is turned on for up to 30 days

• Unit’s last known trip condition can be cleared by performing a series of functions provided in the instructions

• DFCI has a self-test feature that meets a June 2015 requirement from UL on all ground fault circuit breakers

• Must be used with a dedicated neutral can't be used with a shared neutral

What our Experts Think

• Dual Safety Protection in One Device
  Combines AFCI (arc-fault) + GFCI (ground-fault) protection, reducing risk of electrical fires and shock from a single breaker.
• Code-Driven Modern Protection
  Designed to meet NEC requirements for kitchens, laundry, and living areas, where both arc and ground fault protection are increasingly required.
• Fast Fault Detection Technology
  Continuously monitors the circuit and trips instantly on dangerous arc faults or leakage currents, improving home safety response time.
• Advanced Diagnostic LED Indicator
  Built-in LED system helps identify trip cause (arc fault vs ground fault), simplifying troubleshooting and maintenance.
• Self-Test Function for Reliability
  Performs automatic internal checks to ensure protection systems remain functional over time.
• Space-Efficient 1-Pole Design
  Fits standard GE Q-Line panels while providing two layers of protection in a single breaker slot, helping manage limited panel space.
• Professional-Grade Installation Use
  Compatible with GE THQL load centers and designed for licensed electrician installation in residential and light commercial systems.
• Expert Tip
  Requires proper wiring setup (including neutral handling) and must match panel compatibility exactly to ensure safe operation.

Q&A

Q: What is this breaker used for?
A: It protects a 20-amp circuit from overloads, short circuits, arc faults (AFCI), and ground faults (GFCI) in one device.

Q: What does “dual function AFCI/GFCI” mean?
A: It combines arc-fault protection (fire prevention) and ground-fault protection (shock prevention) in a single breaker.

Q: Where is it commonly installed?
A: Used in residential panels for bedrooms, kitchens, laundry areas, and other code-required AFCI/GFCI locations.

Q: Is it compatible with all panels?
A: It is designed for GE Q-Line/PowerMark and compatible ABB/GE load centers (must match panel type).

Q: Does it include safety testing features?
A: Yes, it has a self-test function and LED indicators to help identify trip conditions.

Q: How does it help with safety?
A: It detects arc faults that can cause fires and ground faults that can cause electric shock, then shuts power off quickly.

Q: Is it easy to troubleshoot when it trips?
A: Yes, the LED indicator helps show the last known fault type for easier diagnosis.

Q: What wire sizes does it support?
A: Typically accepts #14–8 AWG copper and #12–8 AWG aluminum conductors.

Q: Why choose this GE dual-function breaker?
A: It reduces panel space needs by combining AFCI + GFCI protection while meeting modern electrical safety code requirements.

Maintenance Tips

• Test monthly: Use the built-in TEST button to confirm both AFCI and GFCI protection are working properly.
• Check panel tightness annually: Ensure the breaker is firmly seated in the load center and no loose wiring is present.
• Watch LED indicators: Pay attention to trip lights—these help identify arc fault vs ground fault issues for faster troubleshooting.
• Keep panel dry and clean: Avoid moisture, dust, and insects inside the electrical panel enclosure.
• Avoid overloading circuits: Stay within 20A limit to prevent nuisance trips and heat stress.
• Inspect wiring condition: Look for discoloration, wear, or loose neutral connections during periodic electrical checkups.
• Use only compatible GE/ABB panels: Ensure proper fit in approved load centers like GE PowerMark systems.
• Have a licensed electrician inspect yearly: Dual-function breakers are sensitive safety devices and benefit from professional checks.