Rated for AC-2 duty at 3 kW on 400 V, it handles wound-rotor motors and moderate switching frequencies.
The 45 mm wide by 60 mm tall footprint fits standard S00 slot in a panel layout. Side-by-side mounting is allowed with no derating for heat buildup, which keeps the fill factor tight on a crowded rail. Spring-loaded terminals on the main circuit accept 2x (0.25 to 2.5 mm²) solid or stranded — no screw torque to check, just strip to 8 mm and push in.
For type 2 coordination — where the contactor stays functional after a short-circuit — Siemens calls for a gL/gG fuse rated 20 A. Type 1 coordination steps that up to 35 A, meaning the contactor may need replacement after a fault but the rest of the panel survives.