General Electric THHQB2120 Bolt On Circuit Breaker

General Electric THHQB2120 bolt-on circuit breaker is a 20-amp, 240-volt, two-pole, single-phase protective device designed for bolt-on installation in GE panels that accept THHQB breakers. The THHQB2120 model designation identifies the exact form factor within GE’s THHQB family, while the bolt-on mounting provides a secure connection to the panel bus and a straightforward service replacement. With two poles, it interrupts both conductors for 240V circuits, delivering essential overcurrent protection for single-phase systems that require 240 volts. The 20A rating specifies the maximum current the device is designed to interrupt under fault conditions, aligning with standard protection for 240V branch circuits. This part is used where a two-pole 240V circuit breaker is required in compatible GE electrical panels.