General Electric THQB2120 20A 2-Pole Bolt-On Thermal Magnetic Breaker 10kA Interrupt Rating, Fits GE THQB & AQ Panelboards

General Electric THQB2120 20A Circuit Breaker

The General Electric THQB2120 is a molded-case, double-pole circuit breaker engineered for dependable thermal-magnetic protection in residential and commercial systems. Designed for use in THQB-compatible panelboards, it provides consistent performance, secure bolt-on mounting, and clear compatibility with GE’s AQ Series.

Why It Helps
Its thermal-magnetic trip design offers both long-time and instantaneous protection, helping safeguard wiring and equipment from overloads and short circuits. The bolt-on mount ensures a stable, vibration-resistant connection to the bus, supporting long-term reliability in demanding environments.

Key Highlights

• The breaker features a 20-ampere rating and 240V maximum voltage, making it suitable for a wide range of load applications while maintaining dependable circuit protection.

• Its compact THQB profile and molded-case construction allow easy integration into GE AQ Series panelboards with a secure bolt-on connection.

• The unit supports copper and aluminum conductors, including 14–8 AWG copper and 12–8 AWG aluminum, providing installation flexibility.

• With a 10kA interrupt rating at 240V, it is built to safely clear high-fault currents in compliant electrical systems.

• The breaker includes (LI) long-time and instantaneous trip functions optimized for typical load center applications.

Applications
Suitable for residential, commercial, and light industrial electrical distribution systems using GE THQB-compatible panelboards. The THQB2120 offers stable, consistent operation and a reliable bolt-on design that supports long-term performance in essential power circuits.