The Schneider Electric LE3D18B7 is an enclosed star-delta starter from the TeSys LE range, designed for standard motor starting applications. The 24 V AC control coil makes it a common fit for panels with a 24 V control transformer. Motor power ratings are specified per supply voltage: 11 kW at 220 V AC, 22 kW at 415 V or 440 V AC, and 18.5 kW at 380/400 V AC — all at 50/60 Hz. This covers the common European and Asian industrial voltages in one unit. Ambient operating range is -5 to 40 °C.
If you need a drop-in replacement with the same form factor and ratings, you'll need to evaluate the current TeSys LE range or a comparable enclosed starter from another manufacturer — but that's a re-engineering decision, not a pin-compatible swap.
For a motor drawing 18 A full-load, this starter handles the star-delta transition without welding contacts. The utilisation category AC-3 per IEC 60947-4-1 covers starting and switching off squirrel-cage motors during running. The unit requires a separate thermal overload relay (ordered separately) and mechanical interlock for the star-delta contactors. That's standard for this class — the overload relay sets the actual motor protection, while the starter body handles the switching. Screw-clamp terminals on both power and control circuits are standard for panel wiring.