Auxiliary Voltage Supply 3 Ac 230 V 60 Hz (Option C34); Auxiliary Voltage Supply 3 Ac 240 V 60 Hz (Option C35); Auxiliary Voltage Supply 3 Ac 380 V 50 Hz (Option C36); Auxiliary Voltage Supply 3 Ac 380 V 60 Hz (Option C37) - Siemens SINAMICS SM120 Operating Instructions Manual