Rated for 22 kW at 400 V under AC-2 duty, it handles slip-ring motor starting and reversing. At 500 V it delivers 30 kW, and at 690 V it's rated for 11.4 kW — covering common 400 V and 690 V line supplies across 50/60 Hz networks. The main current circuit uses screw-type terminals, accepting solid conductors up to 4 mm² per clamp and stranded up to 25 mm². Auxiliary contacts are rated 10 A at 24 V, stepping down to 0.3 A at 220 V — enough for PLC-level signal switching.
The AC-2 rating at 22 kW is the key selection number — it governs the contactor's ability to handle the higher inrush and arcing of slip-ring motors. AC-3 (not listed here) would be for standard squirrel-cage motors; if your load is a standard induction motor, verify the AC-3 rating separately. Maximum switching frequencies give a sense of duty cycle: 400 operations per hour for AC-2, 800 for AC-3, and 300 for the punishing AC-4 plugging/reversing duty. IP20 on the front protects against finger contact; IP00 at the terminals means the wiring area must be inside a closed panel.
For a BOM line that needs this exact order code, the fit is confirmed by the AC-2 power rating and the screw-terminal main circuit — no rewiring or panel modification required if replacing an existing S2 contactor.