Siemens 6SL3120-2TE21-8AC0 SINAMICS S120 Double Motor Module 2x18A Booksize C Drive Module

The Siemens 6SL3120-2TE21-8AC0 is a SINAMICS S120 Double Motor Module in booksize C format, converting a 600 V DC link to two independent 400 V 3AC servo/motor outputs rated 18 A / 18 A continuous. Internal air cooling and DRIVE-CLiQ connectivity let it drive two axes from a shared DC bus while supporting the extended Safety Integrated functions in modular S120 drive line-ups.

Technical Specifications

Selection Notes

Use the double-axis format when two motors near the 18 A rated current each share a single DC-link infeed and enclosure footprint in the cabinet is constrained; a single-axis Motor Module is the better fit when one axis needs headroom above the 36 A Imax peak this dual unit delivers per channel. The 4.00 kHz pulse frequency and DRIVE-CLiQ interface align it with SINAMICS S120 booksize systems using extended Safety Integrated functions rather than standalone drive setups.

Applications

Fits SINAMICS S120 booksize drive line-ups for machine tools, packaging, and material handling where two coordinated servo axes run off one DC bus, using DRIVE-CLiQ for motor encoder feedback and Safety Integrated wiring.