What it is and what it does
The Siemens 6SL3120-1UE23-0AD0 is a SINAMICS S220 Single Motor Module — a DC-fed inverter output stage that takes 600 V DC on the bus and delivers 400 V three-phase AC at 30 A to a single motor. The Booksize D format means it slots into a shared 20 mm-wide Booksize cabinet section alongside other S220 modules, sharing the DC link and control interface. This is the module that actually drives the motor; the line-side supply and control electronics sit in separate units in the same rack.
Integration notes
Booksize D type — 20 mm wide, shares the common DC bus with other S220 modules in the same cabinet section. The 600 V DC input means it's designed for a regulated DC link, not a direct rectified line; you need a compatible line module (Active Line Module or Basic Line Module) upstream. The 30 A output at 400 V three-phase drives a motor roughly in the 15 kW range depending on duty cycle and overload profile. No internal braking chopper on this module — if you need dynamic braking for vertical loads or fast stops, you add an external braking resistor and a separate Braking Module in the same Booksize rack.