Siemens Q22025CT 20/25A Triplex Miniature Circuit Breaker

This triplex breaker requires two standard 1-inch spaces in your load center. It consolidates two 1-pole 20A circuits and one 2-pole 25A circuit into a compact footprint, saving two panel spaces compared to using standard full-size breakers.

Yes, the 2-pole 25A section features a common trip, indicated by the CT in the part number. If one leg of the 240V circuit experiences an overload or short circuit, both poles will trip simultaneously to safely disconnect the load. The two 1-pole 20A circuits operate and trip independently.

The Q22025CT is designed for Siemens EQ, PL, ES, and Ultimate series panels that are rated to accept tandem or quad breakers. Because it is a Circuit Total Limiting (CTL) breaker, it must be installed in designated notched busbar slots. Always check your panel wiring diagram to confirm tandem placement.

Yes, Siemens QT series breakers are UL-listed for use in many legacy ITE, Gould, and Murray load centers that accept tandem or quad breakers. Siemens acquired these brands and maintains backward compatibility, but you must verify your specific panel label for QT breaker acceptance.

While both fit into two 1-inch panel spaces, a triplex breaker like the Q22025CT provides two 1-pole circuits and one 2-pole circuit. A quadplex breaker provides two separate 2-pole circuits.

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