Description
The GE THHQB1120AF2 is a 1-pole, 20-amp arc-fault circuit breaker designed for 120/240 VAC residential and light commercial applications. It combines thermal-magnetic protection with arc-fault detection to prevent overloads, short circuits, and hazardous electrical arcs that can cause fires. Its bolt-on mounting and durable thermoset housing ensure reliable installation and long-lasting performance in GE Q-Line panelboards.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
GE |
| Category |
Circuit Protection |
| Part Number |
THHQB1120AF2 |
| Subcategory |
Arc-Fault Circuit Breaker |
| Series |
Q-Line |
| Amperage Rating |
20 A |
| Voltage Rating |
120/240 VAC |
| Poles |
1 |
| Phase |
1 |
| Protection Type |
Thermal Magnetic |
| Trip Function |
LI – Long-Time and Instantaneous |
| Arc-Fault Protection |
AFCI – Arc-Fault Circuit Interrupter |
| Interrupting Capacity |
22kAIC |
| Mounting Type |
Bolt-On |
| Connection Type |
Load Lug |
| Material |
Plastic, Heat-Resistant Thermoset |
| Wire Size |
AWG 14–10 Cu/Al |
| Frequency Rating |
50/60 Hz |
| Temperature Rating |
10 to 50 °C |
| Dimensions (H x W x D) |
3.28 x 1.00 x 2.38 in |
| Approvals |
UL Listed, RoHS, Buy American Act Compliant |
| Weight |
0.50 lb (approx.) |
Information About THHQB1120AF2
The THHQB1120AF2 is part of GE’s Q-Line Series, built for superior circuit protection in modern electrical systems. Featuring a fixed thermal-magnetic trip unit, it provides precise response to overload and fault conditions. This model includes AFCI (Arc-Fault Circuit Interruption) technology that detects dangerous arc conditions and automatically de-energizes the circuit for safety. Compatible with GE load centers and panelboards, it is ideal for residential branch circuit protection and compliance with current electrical codes.
Key Features:
- Rated Current: 20 Amps — Provides stable and reliable performance for standard branch circuits.
- Voltage Rating: 120/240 VAC — Supports both residential and light commercial single-phase applications.
- Arc-Fault Protection: Detects and interrupts dangerous electrical arcs to reduce fire risk.
- Interrupting Capacity: 22kAIC — High fault-current tolerance for dependable short-circuit protection.
- Trip Function: LI (Long-Time & Instantaneous) — Ensures rapid response to both overloads and short circuits.
- Mounting Type: Bolt-On — Secure and vibration-resistant installation in GE Q-Line panelboards.
- Material: Heat-Resistant Thermoset Case — Provides enhanced structural rigidity and long-term durability.
- Compliance: UL Listed, RoHS, and Buy American Act Compliant — Meets key industry and safety standards.
The THHQB1120AF2 delivers the reliability and precision required for safe, efficient residential and light commercial electrical circuit protection.
