6SL3325-1TG38-1AA3

What is this module used for within a SINAMICS S120 drive system?

It is a SINAMICS S120 chassis Motor Module designed to generate the controlled motor output for high-power AC drives. In a complete S120 system it is combined with a suitable infeed (line-side) arrangement and a control unit to run large motors in industrial or marine drive applications.

Is it air-cooled or liquid-cooled?

This Motor Module is designed for a closed liquid-cooling circuit, as used on SINAMICS S120 liquid-cooled chassis/cabinet solutions.

What motor voltage class is it intended for?

This variant is listed for the 690 V class (typically used on 660–690 V systems).

What output current can it provide at 690 V?

The rated output current is 810 A at 690 V for the Motor Module entry that includes Siemens 6SL3325-1TG38-1AA3.

Which frame size does it belong to?

It is associated with the large SINAMICS S120 chassis frame sizes around the HXL/JXL range (as referenced in marine type approval tables for the 810 A, 690 V class).

Can it be used in marine and offshore environments?

It is included in DNV type approval documentation for SINAMICS S120 liquid-cooled converter assemblies intended for ships and offshore units, where the overall converter assembly is built to the specified conditions and installation requirements.

What are the typical installation conditions referenced for marine converter assemblies?

The referenced assemblies are installed in Rittal TS8 cubicles with marine-specific modifications, and are to be equipped with anti-condensation heating and air inlet filters. Protection degrees referenced include IP20, IP21, IP23, IP43 and IP54 at the assembly level.

What kind of supply network is referenced for the approved configurations?

The marine documentation references IT networks (unearthed) for 380–480 V and 660–690 V, 50/60 Hz supply systems in the approved configurations.

Is this module used on its own or as part of a multi-module arrangement?

This is a single Motor Module, but SINAMICS S120 systems can be configured with multiple Motor Modules in parallel for higher total output current. The 6SL3325-1TG38-1AA3 entry is the 1-module solution for the 810 A, 690 V class.

Which Siemens control and interface components are commonly referenced with this motor module family in approved systems?

Approved SINAMICS S120 marine system documentation commonly references the CU320-2 Control Unit (DP or PN variants) and typical S120 components such as BOP20/AOP30 operator panels, TM31 terminal modules, VSM10 voltage sensing modules, SMC30 sensor modules, DMC20 DRIVE-CLiQ hub modules, and CBC10 communication boards (selection depends on the overall system design).

Can it be used for electric propulsion drives?

Yes. The referenced marine approvals state that the converter assemblies may be used for all types of drives, including electric propulsion, provided the overall assembly and installation meet the stated conditions.

What information is most helpful to confirm suitability for an existing drive cabinet?

To confirm suitability, compare the required motor voltage class (690 V), the needed continuous output current (810 A class), the cooling arrangement (closed liquid-cooling circuit), and the cabinet/system architecture (SINAMICS S120 chassis/cabinet assembly with appropriate infeed and control unit). If you share the existing system’s infeed type and cabinet frame size, it’s easier to confirm alignment with the intended configuration for Siemens 6SL3325-1TG38-1AA3.