The Schneider Electric TeSys F LC3F265P7 is a pre-wired star delta starter designed for motor control applications. It's a 3-pole assembly rated for 265 A operational current in AC-3 utilisation category, meaning it handles the high inrush of squirrel-cage motors during start-up and transitions to delta run. Motor power ratings span 110 kW at 220/230 V AC up to 250 kW at 440 V AC, 50/60 Hz. The control circuit runs on 230 V AC 50/60 Hz, with an operational voltage range of 0.85 to 1.1 Uc and dropout at 0.35 to 0.55 Uc. Coil inrush is 650 VA at 40-400 Hz, cos φ 0.9 at 20 °C. Steady-state heat dissipation is 8 W. Auxiliary contact configuration is built in: 1 NC + 1 NO on the star contactor (KM1), 2 NC + 1 NO on the line contactor (KM2), and 1 NC + 2 NO on the delta contactor (KM3). This covers the interlocking and signalling needs of a standard star-delta start sequence without adding external aux blocks.
AC-3 means it's rated for starting and switching off squirrel-cage motors during running — the contactor must make and break the motor's locked-rotor current. The associated fuse recommendation is 400 A gG or 315 A aM at ≤ 440 V, which sets the short-circuit protection level for the branch circuit. Rated making capacity is 2650 A and breaking capacity is 2120 A, both per IEC 60947-4-1. These numbers tell you the contactor can close onto and interrupt fault currents at those levels — important for coordination with upstream protection. The rated insulation voltage is 1000 V per IEC 60947-4-1, 1500 V per VDE 0110 Group C. For a star-delta starter that cycles on every motor start, this gives a solid service life in high-duty applications like conveyors or compressors.
Mounting is plate-mount, not DIN rail — this is a heavy assembly (625 mm wide, 266 mm deep, 110 mm high) that bolts to a backplate in the enclosure. Power connections are via bolted busbars (M10 bolts, 32 x 4 mm busbar cross-section) or ring terminals up to 240 mm². Control wiring uses screw clamp terminals accepting 1 to 4 mm² flexible or solid cable. The pre-wired design means the internal star-delta wiring between contactors is factory-completed. You land the incoming line, motor leads, and control wires. Torque specs: 35 N·m on power circuit connections, 1.2 N·m on control circuit terminals.
Standards compliance covers IEC 60947-1, IEC 60947-4-1, EN 60947-1, EN 60947-4-1, and JIS C8201-4-1. Protective treatment is TH (tropicalized) for humid environments.