ABB / General Electric THQD22125 Molded Case Circuit Breaker

This breaker is designed for bolt-on installation in GE A-Series and Spectra Series panelboards. It is also commonly used as a tenant main breaker in compatible GE modular metering stacks that accept THQD frame devices.

Both are 125A, 2-pole molded case circuit breakers in the GE Q-Line family. The primary difference is their interrupting capacity. The TQD22125 has a standard 10kAIC rating, while the THQD22125 features a higher 22kAIC rating at 240V.

ABB acquired GE Industrial Solutions in 2018. As a result, THQD series breakers may feature either GE or ABB branding depending on the manufacturing date. The form, fit, and function remain identical regardless of the label.

When terminating conductors, the factory-installed lugs accept copper or aluminum wire ranging from 4 AWG to 300 kcmil. Ensure proper torque specifications are followed based on the wire size and material used.

The THQD22125 features a bolt-on mounting style. It secures directly to the bus connections in compatible load centers, lighting panels, and meter stacks, providing a rigid connection that resists vibration.

No, this breaker features a fixed thermal-magnetic trip unit. It provides non-interchangeable long-time and instantaneous (LI) overcurrent protection that cannot be adjusted in the field.

Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific overcurrent protection rating.