The Schneider Electric TeSys LG1D182Q721 is an enclosed direct-on-line (DOL) starter combining a contactor, switch disconnector, and circuit-breaker in a single IP55 polycarbonate enclosure. It is rated for AC-3 motor starting duty at 4 kW on 220/230 V AC and 9 kW on 400/415 V AC or 440 V AC, all at 50/60 Hz. The thermal overload protection adjusts from 17 to 23 A, and the control coil is wound for 380 V AC 50/60 Hz. The enclosure carries push-button start (white I) and stop (black O) controls plus a red rotary emergency-stop handle. Cable entries are 4 x Pg13 and 2 x Pg16 on both top and bottom faces. Impact protection is IK07 per IEC 60529, and the assembly complies with IEC 60204-1 and IEC 60947-4-1.
The 17-23 A thermal adjustment range sets the overload relay trip point; set it to the motor's full-load current, not the starter's maximum. The 380 V AC coil is a non-standard control voltage in many regions — verify your control circuit matches before specifying. The 165 mm depth and 175 mm width mean the enclosure is compact for a combined starter-disconnect. The cable entries — 4 x Pg13 and 2 x Pg16 at both top and bottom — give flexibility for top-entry or bottom-entry cabling in a panel or junction box.