The Schneider Electric LC1F225P5 is a 3-pole TeSys F contactor rated for 315 A operational current in AC-3 duty, switching motor loads up to 110 kW at 380–400 V AC. Rated breaking capacity is 1800 A per IEC 60947-4-1, and the contactor is listed for utilisation categories AC-1 (resistive), AC-3 (squirrel-cage motor start/run), and AC-4 (plugging/inching). That means it handles both steady resistive loads and the inductive inrush of motor starting, but AC-4 duty — frequent reversing or jogging — will wear the contacts faster; the mechanical durability of 10 Mcycles gives a sense of the base life before contact maintenance.
The 315 A AC-3 rating is the headline number, but the real fit check is the motor power at your line voltage: 110 kW at 400 V, 129 kW at 500 V, and 63 kW at 230 V. If your motor is 110 kW at 400 V, this contactor lands right on the rating — no headroom for derating if ambient hits 55 °C (the max operating temp). The coil hold-in draw is 55 VA at 50 Hz; the inrush is 805 VA, so the control transformer needs to handle that surge without dropping below 0.85 Uc (196 V for a 230 V coil). Power connections accept bar or lug terminals up to 185 mm² cable; control wiring is screw-clamp, 1–4 mm² flexible or solid. Tightening torque is 35 N·m on the power side and 1.2 N·m on the control side — a torque wrench is non-negotiable for the power lugs to avoid hot spots at 315 A.
Deployment context
Plate-mounted in a motor control centre or panel, this contactor is sized for a 3-pole motor branch circuit. The 181 mm depth and 168.5 mm width mean it fits a standard backplate with generous side clearance for arc flash and cable bending radius.