SIRIUS S00 power contactor — 4 NO, spring-loaded, DIN-rail
Rated for AC-2 duty at 4 kW on 400 V three-phase, this contactor handles wound-rotor motor starting and reversing applications where the AC-2 category applies (starting and plugging duty). The spring-loaded terminals accept 2x (0.25 to 2.5 mm²) solid or stranded conductors, or 2x (0.25 to 1.5 mm²) finely stranded with ferrule — no screw torque to verify, which speeds panel wiring. The S00 footprint (45 mm wide, 60 mm tall, 72 mm deep) packs into tight sub-panel layouts.
The DC magnet coil draws 3.3 W holding power — continuous-duty rated, no economizer resistor needed. Coil operating range is 0.85 to 1.1 x rated voltage (230 V coil version).
Operating ambient -25 to +60 °C, with altitude derating above 2000 m. Mechanical life rated at 30 million operating cycles typical.