Electronic Element Set. Brand: Siemens. Condition: Not Tested. Composition: Contactors, etc. Quantity: approx. 27 pieces. S0 size circuit breaker for motor protection CLASS 10, Time dependent overload trip 0.22...0.32 A, Short circuit trip 4.2 A, screw terminal standard breaking power. End of life product. Successor is SIRIUS 3RV2.