The SIRIUS 3RV2 motor starter protectors/circuit breakers are compact, current limiting motor starter protectors/circuit breakers which are optimized for load feeders. The motor starter protectors/circuit breakers are used for switching and protecting three-phase motors of up to 55/45 kW at 400 VAC and for other loads with rated currents of up to 100 A. Siemens Motor Protection Circuit Breaker, Series: 3RV2, 690 VAC, 20 to 25 A, 22 kW Power, 50 to 60 Hz Frequency, 8 kA Interrupt, S2 Frame, Magnetic Trip, 325 A Trip, 3 Pole, 3 ph, Screw Connection, 1NO-1NC Auxiliary, 18 to 2 AWG Wire, IP20 Enclosure, DIN Rail Mounting, -20 to 60 °C, 140 mm H x 55 mm W x 149 mm D Dimensions