Drive selection memo — 11 kW, CANopen, STO on board
The Siemens 6SL3210-1KE22-6AC0 is a SINAMICS G120C variable frequency drive rated for 11.0 kW output with a 150% overload capability for 3 seconds — enough to get a pump or conveyor through a jam start without tripping. It runs on 380-480 VAC three-phase, 47-63 Hz, and carries an integrated Class A EMC filter, so you can skip the external filter box on most industrial lines. The I/O complement — 6 digital inputs, 2 digital outputs, 1 analog input, 1 analog output — covers a basic speed/start-stop control loop without an extra I/O module. Safe Torque-Off is integrated, which means you can wire the safety circuit directly to the drive without a separate safety relay — a clean way to meet SIL 3 / PL e on a guarded cell. The CANopen fieldbus interface is onboard; no option card needed for that protocol. This is a Frame Size C unit (295 x 140 x 203 mm, HxWxD) with IP20 / UL Open Type protection — it mounts inside a panel, not out on the plant floor. The open-type rating means it expects a grounded enclosure for personnel protection.
What the ratings mean for fit
The 150% overload for 3 seconds is the key number for sizing: it handles short-duration overloads typical of starting a loaded conveyor or a centrifugal pump breakaway torque. The 11.0 kW rating is the continuous motor power at 400 V — match it to a 15 hp (11 kW) 4-pole induction motor for a clean pairing. The integrated Class A filter meets EN 61800-3 for most industrial environments; if your installation is on a residential or public low-voltage supply, you may need an external Class B filter.
Panel integration notes
IP20 means it's for cabinet mounting only — no washdown, no dust. The FSC (Frame Size C) footprint of 295 x 140 x 203 mm fits a standard 600 mm deep enclosure with room for the required top/bottom cable bending radius. CANopen connection uses a standard D-sub 9-pin; the STO terminals are screw-type, 0.5-1.5 mm². The integrated filter adds about 30 mm to the overall depth, so check your gland plate clearance before wiring.