The Siemens 6SL3320-1TH31-2AA0 is a SINAMICS Single Motor Module designated as a spare part, with a 1035 V DC input and a 690 V three-phase AC output rated at 120 A. It includes internal air cooling and the DRIVE-CLiQ cable, so it drops straight into an existing SINAMICS drive cabinet without chasing separate cables.
What the ratings mean for fit
The 120 A output at 690 V three-phase AC is the continuous motor current rating under SINAMICS duty. That figure governs the motor cable sizing and the upstream DC-link supply — sized for a motor load drawing up to 120 A RMS, not a peak or short-time rating. The 1035 V DC input matches the standard SINAMICS DC-link voltage for 690 V AC drives; verify the existing cabinet's DC bus voltage before installation.
Deployment context
Internal air cooling means this module relies on the cabinet's own airflow — no external fan unit. Mount it in a ventilated enclosure with clearance above and below for natural convection; derate the 120 A output if the ambient temperature inside the panel exceeds 40 °C, per the SINAMICS engineering manual.