What this module is and where it fits
The Siemens 6SL3320-1TH34-1AA0 is a SINAMICS S120 Single Motor Module rated for 400 kW continuous power, delivering 410 A at the motor terminals from a DC-link supply of 890 to 1035 V. Output is three-phase 0 to 690 V AC. It is a chassis unit with IP00 protection — meaning it is designed for enclosure mounting inside a cabinet, not for standalone floor placement. Internal air cooling handles the thermal load; the module ships with a DRIVE-CLiQ cable for direct connection to a Control Unit or Line Module in the S120 drive topology.
DC-link voltage and motor rating — what they mean for your drive train
The 890–1035 V DC input range tells you this module is intended for the high-voltage DC-link bus of a SINAMICS S120 chassis system — typically fed by a Smart Line Module or Active Line Module that rectifies 3-phase AC mains into a regulated DC bus. The 410 A output at 690 V AC means it can drive a 400 kW induction or synchronous motor at full rated torque. For a cold-storage or refrigeration compressor application, that power class covers large screw compressors or ammonia pump motors in the 500–600 hp range. The IP00 rating means the module must live inside a clean, dry cabinet — not on the plant floor near washdown or ammonia drip points.