Overview
The GE THQB120 circuit breaker is a single-pole, bolt-on molded case breaker rated for 20 amperes at 120/240 volts. The THQB series features a 10kA maximum interrupting rating at 120/240Vac and provides reliable thermal-magnetic overload protection for branch circuits in commercial and industrial power distribution systems. This unit is manufactured to U.S. standards and is UL-listed for molded case circuit breaker applications.
Key Features
- Quick-make/quick-break mechanism for reliable operation
- SWD-rated for fluorescent lighting and HACR-rated for HVAC equipment
- Bolt-on connection style for simplified installation into compatible panelboards
- Accepts 14-8 AWG copper or 12-8 AWG aluminum wire at terminal connections
- Thermal-magnetic protection mechanism prevents nuisance trips on inrush currents
Technical Specifications
The THQB120 meets industry standards for commercial branch circuit protection. Its compact, single-pole design integrates into GE panelboards with standard bolt-on mounting. Rated for both standard load and special-application loads, this breaker is suitable for general-purpose and dedicated circuits in residential, commercial, and light industrial settings.
Typical Applications
- Branch circuit protection in residential and commercial panels
- Protection of lighting circuits (SWD-rated)
- HVAC equipment branch protection (HACR-rated)
- General-purpose distribution in commercial buildings
- Industrial control and machinery circuits
Compatibility & Replacements
Compatible With
- GE A-Series panelboards
- GE AQ lighting panels
- GE ReliaGear RQ panelboards
- Standard single-pole breaker slots (bolt-on mount)
Replaces / Drop-In Replacement For
Verify exact replacement eligibility with your electrical contractor or system integrator before installation, as panelboard compatibility varies by vintage and configuration.
Works With
- Standard 120/240V single-phase power distribution
- Breaker panels requiring bolt-on molded case breakers
- Auxiliary switch accessories (where applicable)
