GE Q-Line THQL 20-amp 1-Pole Gfci Circuit Breaker - 71223237
The GE 20 Amp Single Pole Ground Fault Circuit Breaker with Self-Test has a tin-plated copper stab to create a reliable, permanent and corrosion resistant connection. It is used as a substitute to GFCI wall outlets allowing the customer to know exactly where to go (back to electrical panel) in the event of a tripped circuit. No more searching for the correct wall outlet to reset. The Self-Test functionality is a UL requirement on all GFCI devices commencing in June 2015. This variant of the GFCI ensures its ground circuitry is functioning properly by automatically running diagnostic testing on a periodic basis. Should a problem be detected, the circuit breaker will trip and will need to be replaced.
Features
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Ground Fault protection for indoor and outdoor use
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Automatically performs Self-Test every 16 minutes
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Includes manual "push-to-test" button
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Unit provides protection against overloads, short circuits and ground faults
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Detects very low levels of electrical current leakage (ground faults) and acts quickly to shut off power, preventing serious shock
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Class A 5mA Ground Fault circuit interrupter
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Wire range is #14-8 AWG CU/#12-8 AWG AL
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UL Listed # E11592
What our Experts Think
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Critical safety protection: Provides ground fault (GFCI) protection, helping prevent electric shock in high-risk circuits
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20-amp single-pole design: Ideal for standard residential 120V branch circuits such as kitchens, bathrooms, and outdoor outlets
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Built-in self-test feature: Automatically checks functionality to ensure continuous protection and code compliance
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Panel-mounted reset convenience: Trips directly at the breaker panel, making it easier to locate and reset faults quickly
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Reliable GE Q-Line compatibility: Designed for GE load centers (THQL series) for secure fit and proper electrical performance
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Fast fault detection: Shuts off power immediately when leakage is detected, improving user safety and system protection
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Durable electrical construction: Built for long-term reliability in residential and light commercial installations
Q&A
Q: What is the GE Q-Line THQL 20-Amp GFCI Circuit Breaker used for?
A: It provides ground fault protection for electrical circuits, helping prevent electric shock in homes and commercial spaces.
Q: Where can it be installed?
A: It is designed for use in compatible GE load centers and breaker panels that accept THQL breakers.
Q: What protection does it offer?
A: It detects ground faults and quickly shuts off power to reduce the risk of electrical hazards.
Q: Is it suitable for residential use?
A: Yes. It is commonly used in kitchens, bathrooms, garages, and outdoor circuits requiring GFCI protection.
Q: Does it require special installation?
A: Yes. It must be installed in a compatible panel and should be installed by a qualified electrician for safety.
Maintenance Tips
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Test monthly using the built-in “Test” button to ensure proper ground-fault protection.
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Keep panel dry and clean—moisture or dust can affect breaker performance and safety.
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Avoid frequent tripping causes like overloads or faulty appliances; investigate root issues instead of resetting repeatedly.
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Ensure correct panel compatibility (GE Q-Line / THQL load centers only) for safe operation and proper fit.
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Do not mix incompatible breaker brands in the same panel to prevent overheating or poor contact.
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Check wiring tightness during maintenance (power OFF) to avoid arcing or heat buildup.
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Inspect for discoloration, burning smell, or heat—replace immediately if any signs appear.
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Keep labeling clear in panel to quickly identify GFCI-protected circuits during troubleshooting.
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Do not force reset after repeated trips—this indicates a wiring fault or ground leakage that must be fixed.
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