It integrates three contactors — star, line, and delta — with mechanical interlocking and the auxiliary contacts already wired, so it lands as a single assembly for panel integration. Rated 185 A in AC-3 duty at ≤ 440 V, it switches motor loads up to 160 kW on a 400 V supply. The 115 V AC 50/60 Hz control coil pulls 805 VA inrush at 50 Hz and holds within 0.85 to 1.1 Uc, with dropout between 0.35 and 0.55 Uc.
The AC-3 rating (185 A) governs motor switching — inrush during start and break during stop. The associated fuse guide of 315 A gG or 200 A aM at ≤ 440 V tells you what upstream protection keeps the starter within its short-circuit rating. Breaking capacity is listed at 1480 A per IEC 60947-4-1; making capacity at 1850 A. The starter mounts to a plate (not DIN rail) and measures 525 mm wide × 110 mm high × 235 mm deep — plan for a backplate that clears the M8 power-bolt connections and the lug/ring terminals accepting up to 150 mm² cable. Vibration resistance is 5 Gn closed, 2 Gn open; shock resistance 15 Gn closed for 11 ms. Altitude derating starts above 3000 m.
Star delta starters like this one are standard for reducing inrush current on three-phase induction motors during start-up — common on pumps, compressors, conveyors, and fans where the driven load doesn't need full torque at zero speed. The LC3F185FE7A64 fits motor control centres and panel builds that spec a pre-wired, tested assembly rather than wiring three individual contactors.