The Schneider Electric LC1F1250L7 is a 3-pole contactor from the TeSys F series, rated for 1260 A in AC-1 utilisation category (resistive loads) at 40 °C. The coil pulls 208 V AC at 40–400 Hz, with a holding consumption of 22 VA and an inrush of 1650 VA at 20 °C.
Mounting is plate-style — not DIN-rail — so plan for a dedicated backplate or sub-panel. The power circuit uses bar connections (2 x 100 x 5 mm), torqued to 58 N·m. Control circuit wiring is screw-clamp terminals accepting 1–4 mm² flexible or solid, torqued to 1.2 N·m. Dimensions are 13.3 in high, 12.2 in wide, 10.04 in deep — allow clearance for the arc chutes and the 100–200 ms opening travel.
The contactor is certified to IEC 60947-4-1 and EN 60947-4-1, with an insulation voltage of 1000 V (IEC) and impulse withstand of 8 kV. Rated short-time withstand current (Icw) is 8000 A for 10 s — useful for coordination studies. Operating altitude is 3000 m without derating; ambient temperature range is -5 to 40 °C. The TH protective treatment means it is coated for humid or mildly corrosive environments.