Siemens Low Voltage Residential Specialty Load Centers Murray LoadCenters 2920 for residential applications. Meets stds UL. Rated1 20/240V (150A).Overload, short circuit protection by integrated circuitbreaker. (AIR 22000AIC). Indoor Type 1 enclosure with combinationmounting. No special features listed.. REPLACED BY SN3048B1150. AVAILABLE 4/1/2020