Siemens QS2175 NN is a 175-amp, two-pole molded‑case circuit breaker in the QS family, rated for 240V AC. It delivers a 10,000-amp interrupting capacity (AIC) at 240V and is sold as a main breaker option for Siemens QS-series panels, including multi‑family installations. With a 120/240V rating, this breaker provides overcurrent protection for feeders and branch circuits in residential and light commercial distributions and is designed for use in Siemens-branded enclosures and meter-main assemblies.
