The Schneider Electric LE3D09Q7 is an enclosed star-delta starter from the TeSys LE range, designed to start three-phase induction motors in a reduced-voltage configuration. It is rated for AC-3 utilisation category, meaning it handles motor switching — starting and stopping under load — not just resistive loads. The starter is rated for motor power up to 4 kW at 220 V AC, and 7.5 kW at 380/400 V, 415 V, and 440 V AC (all at 50/60 Hz). The control circuit voltage is 380 V AC 50/60 Hz, and the unit is designed for an ambient air temperature range of -5 to 40 °C. It complies with IEC 60947-4-1, the standard for contactors and motor-starters, so you know the breaking and making capacities are certified for motor duty.
The enclosure measures 348 mm high, 186 mm wide, and 175.5 mm deep, built from polycarbonate. It has multiple cable entry points: top and bottom entries for ISO20, ISO25, ISO32, and ISO40 glands, giving flexibility for routing motor and control cables. The IP65 and IK07 ratings mean the enclosure withstands impacts of 2 J and is sealed against dust and water — appropriate for standalone mounting near the motor, not just inside a clean control panel.
What It Includes and What It Needs
The LE3D09Q7 is an enclosed starter that requires a separately ordered thermal overload relay for motor protection. It also needs a mechanical interlock if you are configuring it for star-delta operation with separate contactors.