The Schneider Electric LE4D18B7 is an enclosed direct-on-line (DOL) starter from the TeSys LE range, built for standard motor-starting duty in a single enclosure.
Motor power and fit
This starter covers a spread of motor power ratings depending on line voltage: 4 kW at 220/230 V AC, 7.5 kW at 380/400 V, 9 kW at 415 V or 440 V, and 10 kW at 500 V — all 50/60 Hz. That's a typical range for a 18 A frame in AC-3 duty. Polycarbonate housing holds up fine in most industrial environments, though it's not rated for aggressive chemical washdown.
Here's the straight truth: the LE4D18B7 is listed as obsolete by Schneider. No official successor order code appears in the record. That means you're looking at the surplus and broker channel for this exact part number. Just know it's not coming off a factory shelf anymore.
What's in the enclosure
The LE4D18B7 ships as a complete assembly: a contactor and a fuse disconnector inside the IP65 box. The thermal overload relay is ordered separately — that's the part that actually protects the motor from overcurrent, so don't forget it when you spec the starter. Cable entries are generous: eight knockouts total (four ISO 20, four ISO 25, four ISO 32, four ISO 40 on top, same on bottom), giving you flexibility on conduit or gland sizes. The push-button controls are built in — green start, red stop/reset — so an operator can run the motor right from the box.