The screw-type terminals on the main current circuit accept solid conductors up to 2x 2.5 mm² and stranded up to 2x 25 mm², covering most panel wiring from control to power feeds. Rated for AC-3 duty at 400 V, it handles motor loads up to 18.5 kW at 500 V and 10 kW at 690 V — the AC-3 figure is the one that governs real motor switching, not the AC-1 resistive rating. AC-4 at 400 V is rated at 29 A, which matters for reversing or inching applications where the contactor breaks full-load current. The auxiliary contact block on this unit carries 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — enough for most PLC or relay interface circuits. Coil pickup time is 7 to 20 ms at AC, with arcing time between 10 and 15 ms, so it sequences cleanly in a starter string.
At 55 mm wide, 112 mm tall, and 164 mm deep, this S2 contactor fits a standard 55 mm DIN-rail slot — no overhang on a 35 mm rail. Switching frequency limits: 1,200 cycles/hour at AC-1 (resistive), 1,000 at AC-3 (motor), and 250 at AC-4 (plugging/reversing).