Siemens Q22030CT QLine 2 Pole 30A Circuit Breaker

Siemens Q22030CT QLine QT-type triplex circuit breaker combines two outer 20A single-pole breakers with a central 30A two-pole breaker, delivering three protected circuits in a single plug-on module for 120/240V AC residential distribution with common-trip protection. The assembly is UL 489 listed and rated for a 10 kA interrupting capacity, making it suitable for load centers and lighting panels that require reliable short-circuit protection. According to Siemens’ product data, it features two single poles and one double pole, with the central 30A 2-pole section paired with the outer 20A breakers to handle mixed-load scenarios in a single, coordinated unit. Common-trip behavior ensures the 2-pole section trips together when fault conditions occur, enhancing safety for multi-circuit layouts. Typical applications include residential electrical distribution where a 30A 2-pole circuit is needed alongside two smaller 20A circuits, all within a QT family, plug-on configuration. This model is marketed as part of the Q-Line QT family and is used in Siemens load centers and compatible panels to organize and protect multiple branch circuits efficiently.