6SL3210-1SE31-8UA0 is a Siemens SINAMICS S120 PM340 blocksize Power Module for three-phase 380 to 480 V AC supplies. It provides 178 A rated output current and 90 kW rated power in the FSF mechanical format.

The UA0 version does not include an integrated line filter. It requires a compatible SINAMICS Control Unit and an installation designed for the specified line-side components, cooling and braking circuit.

• Provides the motor-side power conversion stage for a modular SINAMICS S120 drive axis.
• Supports the documented rated, S6 and maximum-current load profiles for the FSF power stage.
• Includes a braking connection for a correctly selected external braking resistor.
• Uses internal air cooling with the specified cabinet airflow.
• Provides the unfiltered UA0 construction for an installation with separately engineered EMC measures.

• Industrial drive axes requiring a 90 kW rated PM340 power stage.
• Applications sized for a 75 kW high-overload duty.
• Modular machines using a compatible SINAMICS S120 Control Unit.
• Cabinets that provide the FSF mounting space and 150 l/s cooling airflow.
• Installations whose EMC design calls for the unfiltered UA0 variant.

• Siemens classifies 6SL3210-1SE31-8UA0 as a spare part and lists product cancellation effective 1 October 2019.
• Siemens identifies the stated successor status as phase-out; verify current service handling before ordering a replacement.
• Retain the complete UA0 suffix because it distinguishes the unfiltered construction.
• Record the Control Unit, firmware, parameter backup, motor duty and braking-resistor circuit before exchange.
• Confirm protection, conductor sizing, airflow and commissioning checks during the planned shutdown.