The Schneider Electric LC3F330M7 is a pre-wired TeSys F star delta starter, built for three-phase induction motor starting across a range of line voltages. It is rated in utilisation category AC-3, meaning it is designed for starting squirrel-cage motors and switching them off only after they are up to speed — the standard duty for contactors in motor control centres. Motor power ratings span 160 kW at 220/230 V AC, 280 kW at 380/400 V AC, and 315 kW at 440 V AC, all at 50/60 Hz. The control circuit is 220/230 V AC 50/60 Hz, with an inrush of 650 VA at 20 °C. The unit is a 3 x 3P configuration — three power poles per contactor, with three contactors (star, line, delta) inside the assembly. It comes without a start-delta mechanical interlock; the interlocking is electrical via the auxiliary contact set: 1 NC + 1 NO on the star contactor, 2 NC + 1 NO on the line contactor, and 1 NC + 2 NO on the delta contactor.
Rated breaking capacity is 2640 A per IEC 60947-4-1, and rated making capacity is 3300 A per the same standard. These numbers govern the starter's ability to interrupt and close onto fault currents — relevant for coordination studies and ensuring the upstream protective device (associated fuse rating: 500 A gG or 400 A aM up to 440 V) clears before the starter is damaged. For a star delta starter that typically cycles once per motor start, this translates to a very long service life in normal duty. Rated insulation voltage is 1000 V per IEC 60947-4-1 and 1500 V per VDE 0110 group C. The IP degree of protection is IP20 on the front face with shrouds, per IEC 60529 and VDE 0106 — suitable for installation inside a locked enclosure, not for washdown environments. Operating time is 40 to 65 ms for closing and 100 to 170 ms for opening. The starting time is 20 seconds — this is the transition delay between star and delta, set at the factory and not field-adjustable on this pre-wired unit.
Mounting is plate-mount — not DIN rail. The unit measures 28.5 inches wide by 10.9 inches deep by 4.3 inches tall. Power connections are bolted via M10 bolts, with busbar cross-section 30 x 5 mm and ring terminals up to 240 mm². Control circuit connections are screw clamp terminals accepting 1 to 4 mm² flexible with cable end. Tightening torque is 309.8 lbf·in (35 N·m) for the power circuit and 10.6 lbf·in (1.2 N·m) for the control circuit. The unit is pre-wired, meaning the internal connections between the three contactors and the timing relay are already made. This reduces panel wiring time but also means the transition time and interlocking logic are fixed — verify the 20-second start time matches your motor acceleration profile before specifying.
The LC3F330M7 is certified to IEC 60947-4-1, EN 60947-4-1, IEC 60947-1, EN 60947-1, and JIS C8201-4-1. Protective treatment is TH (tropicalisation) for humid environments. Mechanical robustness is specified: vibrations 2 Gn at 5-300 Hz with contactor open, 5 Gn with contactor closed; shocks 15 Gn for 11 ms with contactor closed, 6 Gn for 11 ms with contactor open.