Siemens 6SL3330-1TE38-2AA3 SINAMICS S120 Basic Line Module

The Siemens 6SL3330-1TE38-2AA3 is a Basic Line Module (BLM) from the SINAMICS S120 drive system, designed as a compact line infeed for two-quadrant operation — meaning it supplies DC power to the drive lineup but does not feed regenerative energy back into the supply system . This module is a 400 kW chassis unit with a rated input current of 820 A at 380–480 V AC. It converts three-phase AC line power into a regulated DC link voltage of 510–650 V DC, serving as the central power source for connected Motor Modules in a multi-axis drive configuration.