Siemens Q270 Miniature Circuit Breaker

Siemens Q270 Miniature Circuit Breaker is a 70-amp, two-pole protective device in the Siemens QP family for 120/240-volt AC circuits, designed for use in standard residential load centers. It provides thermal-magnetic overcurrent protection with an interrupting capacity of 10 kA at 120/240 V, enabling rapid disconnection of faults to help protect wiring and connected equipment. This 2-pole model is intended for branch circuits and feeders in home panels, where it protects high-demand loads such as HVAC equipment, water heaters, and large appliances, in compatibility with Siemens' QP/Miniature circuit breakers catalog listings that identify the Q270 as the 70A, 2-pole option for 120/240 VAC systems.