Siemens Q22030CT Molded Case Circuit Breaker

Siemens Q22030CT Molded Case Circuit Breaker is a 30-amp, two-pole device from the Siemens Q-Series QT family, designed for 120/240 VAC circuits and offering 10 kA interrupting capacity at 240 V. The CT suffix denotes quadplex capability in compatible panels, allowing two-pole breakers to be configured in space-saving quadplex arrangements while still using plug-in mounting for quick replacement. This thermal-magnetic breaker provides both long-time and instantaneous protection and is intended for Siemens Q-Series panels, protecting branch circuits up to 30 A. Common applications include lighting and receptacle circuits, as well as small-appliance circuits in residential or light-commercial installations, in panels that accept Q-Series quadplex breakers. As with other QT molded-case breakers, it shares mounting and termination standards within the family to simplify planning and replacement in compatible distribution systems. Confirm panel compatibility and ensure the bus, slots, and CT/quadplex arrangement match the specific Siemens panel model before installation.