The LC1F185Q522L is a 3-pole TeSys F contactor from Schneider Electric, rated for motor control and resistive loads across AC-1, AC-3, and AC-4 utilisation categories. The headline number is 275 A rated operational current (Ie) in AC-3 duty at ≤ 440 V, which translates to switching a 90 kW motor at 380–400 V AC or 100 kW at 415 V. For resistive loads (AC-1), the thermal current (Ith) is 275 A at 50 Hz, with 25 W dissipation per pole. The control circuit is a 380 V AC 50 Hz coil, with an operating range of 0.85–1.1 Uc and drop-out between 0.35–0.55 Uc. Inrush power is 805 VA at 50 Hz; hold-in consumption drops to 55 VA. That 380 V coil voltage is less common than the 220–240 V or 110 V alternatives in the TeSys F family — verify your control transformer taps before committing the panel design. The contactor carries IEC 60947-4-1, EN 60947-4-1, and JIS C8201-4-1 standards. For North American installations, the UL/CSA motor power ratings are 125 hp at 460 V and 150 hp at 575 V — the 460 V figure is the one most often checked for 480 V plant distribution.
This contactor is plate-mounted (not DIN-rail), so it bolts directly to a backplate or mounting chassis. Dimensions are 7.1 in deep, 6.6 in wide, and 12.008 in tall. Power connections use bolted bars or ring terminals up to 150 mm²; control wiring is screw-clamp terminals accepting 1–4 mm² flexible or solid. Tightening torque on the power circuit is 159.3 lbf·in (18 N·m) — a torque wrench is expected, not optional. The front face with shrouds achieves IP2X protection per IEC 60529 and VDE 0106.
Associated fuse ratings are 200 A aM or 315 A gG at ≤ 440 V. The rated breaking capacity is 1480 A per IEC 60947-4-1. Overvoltage category III and rated insulation voltage of 1000 V (IEC) or 1500 V (VDE 0110 group C) place it in the distribution-level isolation class. The protective treatment code TH indicates tropicalisation — suitable for humid or corrosive environments.