The Schneider Electric LC1F1504Q7 is a TeSys F series 4-pole contactor with a 380 V AC 40-400 Hz control coil, rated for 250 A in AC-1 utilisation category — meaning it's built for switching resistive loads like heaters or furnaces, not motor starting. The 4 NO power pole configuration and 250 A continuous rating at 440 V make it a heavy-duty line contactor for panel builders working on ovens, kilns, or large resistive banks.
Heat dissipation runs 5.9 to 7.2 W total, so panel ventilation is minimal for a contactor this size. Control circuit is AC only, 380 V at 40-400 Hz, with operational limits of 0.85 to 1.1 Uc and drop-out between 0.2 and 0.55 Uc. Inrush power hits 770 VA at 20 °C, then hold-in drops to 8.1 VA — the coil draw matters for transformer sizing if you're feeding multiple contactors from a single control transformer. Closing time is 35 ms, opening 130 ms at rated voltage. Mechanical durability is rated at 10 million cycles, and the maximum operating rate is 2400 cycles per hour at 55 °C — that's one cycle every 1.5 seconds, fine for cyclic resistive loads but not for high-speed motor jogging. Ambient operating range is -40 to 60 °C, storage -60 to 80 °C, with no derating up to 3000 m altitude.
Mounting is plate-only — no DIN-rail clip on this frame size, so plan for a backplate or mounting plate with the 171 mm depth, 200.5 mm width, and 170 mm height. Power circuit connections accept bar (25 x 3 mm busbar), ring terminals up to 120 mm², or bolted connection. Control wiring uses screw clamp terminals accepting 1 to 4 mm² flexible or solid, with tightening torque of 1.2 N.m for control and 18 N.m for power. IP2X front face with shrouds per IEC 60529 and VDE 0106 — not washdown-rated, so keep it in a closed panel.
The LC1F1504Q7 complies with EN 60947-1, IEC 60947-1, JIS C8201-4-1, EN 60947-4-1, and IEC 60947-4-1. Rated insulation voltage is 1000 V per IEC 60947-4-1 and 1500 V per VDE 0110 group C. Impulse withstand voltage is 8 kV, overvoltage category III. Protective treatment is TH (tropicalized) for humid environments. Associated fuse protection is 160 A aM or 250 A gG at <= 440 V.