What this module is and what it drives
The Siemens 6SL3120-1TE23-0AA4 is a SINAMICS S120 Single Motor Module in a Booksize frame. It takes a DC 600V input from a common DC bus — typical in multi-axis drive systems — and outputs 3AC 400V at 30A to power a single servo or spindle motor. The 'spare part' designation means it's built for replacement duty in existing S120 cabinets, not necessarily for new line builds.
The 30A output at 400V three-phase puts this module in the 3 kW motor class (roughly 4 HP). That's the continuous rating; the module's peak current capability (not listed here) typically runs higher for acceleration. The DC 600V input ties it to a regulated DC-bus supply — not a standalone rectifier — so the panel already has a line module or Smart Line Module feeding the bus. Booksize frame means it mounts side-by-side with other S120 modules on a shared heatsink, saving panel width compared to the Chassis format.
Integration notes
Internal air cooling is standard for Booksize modules — no external fan required, but the cabinet must allow vertical airflow across the heatsink fins. The module includes DRIVE-CLiQ cable for communication back to the Control Unit. Optimized pulse patterns and Safety Integrated functions (STO, SS1, SBC) are supported, so it can drop into a safety-rated axis group without a separate safety relay.