910 A, 900 kW — what the ratings mean for a motor line
The Siemens 6SL3320-1TH38-8AA0 is a SINAMICS Single Motor Module rated for 910 A continuous output and 900 kW on a 3AC 0-690 V drive bus. That current rating governs the motor it can feed: a 910 A module handles a 900 kW induction motor at 690 V, so the load must be sized within that envelope — overshoot it and the IGBT junction temperature climbs past the thermal limit. The DC link input spans 890 to 1035 V, which matches the common 900 VDC bus from an active infeed or regenerative line module in a SINAMICS S120 common-bus system.
Chassis IP00 — integration into the cabinet
IP00 means the module has no enclosure of its own — it is a chassis unit that must live inside a panel or cabinet that provides the environmental seal. Internal air cooling pulls cabinet air through the heatsink, so the panel designer needs to account for the waste heat in the thermal budget and ensure enough airflow around the module. The DRIVE-CLiQ cable is included, which saves a sourcing step when wiring the module to the control unit.
What the 910 A rating tells the field engineer
The 910 A figure is the module's rated output current at the nominal switching frequency. If the application demands a higher pulse frequency for lower motor noise, the module must be derated per the SINAMICS S120 design guidelines — the drive selection memo for this class always flags that the 910 A is not a take-all-you-can-eat number. For a 900 kW motor on a conveyor or pump, the 910 A module delivers full rated torque across the speed range as long as the DC link voltage stays above 890 V.