Siemens Q2150B is a 150 A, two-pole plug-on circuit breaker in the QPP family, designed for 120/240 V AC service in Siemens load centers. It delivers a 10 kA interrupt rating (10,000 AIC) and is UL 489 listed for use in Siemens PL, ES, and Ult load centers, with common-trip protection across both poles. This plug-on device accepts conductors such as 3/0 AWG aluminum or 1/0 AWG copper. It is intended for residential or light commercial distribution where 240 V circuits require reliable overcurrent protection.
