The Schneider Electric TeSys LC4D18AE7 is a direct-on-line (DOL) starter combining a fuse disconnector and a contactor in a single plate-mounted unit. Its rated operational current is 18 A in AC-3 duty, meaning it handles motor switching under typical starting and running conditions — the AC-3 category covers squirrel-cage motors with starting currents up to about 6× the rated current. The coil is 48 V AC 50/60 Hz, a common control voltage for industrial panels running on a 48 V control transformer.
Motor power coverage across voltages
This starter covers a range of motor power ratings depending on the supply voltage: 10 kW at 500 V AC, 9 kW at both 415 V and 440 V AC, 7.5 kW at 380…400 V AC, and 4 kW at 220…230 V AC — all at 50/60 Hz. The spread means one BOM line can serve different line voltages within a facility, as long as the coil voltage stays 48 V AC.
Mounts to a plate (not a DIN rail) — panel builders need to account for the 173 mm height, 86 mm width, and 98 mm depth when laying out the enclosure. The plate-mount form factor is standard for DOL starters in this power class, allowing direct bolting to a backplate without a separate rail adapter.