The Schneider Electric Easy TeSys Control LC1E3810B7 is a 3-pole contactor rated for 38 A in AC-3 and AC-3e utilization categories up to 440 V, with a 24 V AC 50/60 Hz coil and one normally open auxiliary contact built in. It's meant for switching motor loads under the AC-3 duty cycle — starting and stopping a squirrel-cage induction motor at full voltage — and can handle resistive loads under AC-1 as well. The 38 A AC-3 rating at 440 V means this contactor will reliably handle a motor drawing around 18–20 kW at 400 V three-phase, which is the real-world sizing figure a panel builder or maintenance guy cares about.
Environmental and mechanical toughness
It carries TH protective treatment for pollution degree 3 per IEC 60068-2-30, meaning it's built to handle the humidity and condensation cycles you find in unheated warehouses or washdown-adjacent areas. Operates from -5 °C to 55 °C ambient, stores from -60 °C to 80 °C, and runs at altitudes up to 3000 m without derating — good for most plants and jobsites short of high mountain passes. Vibration resistance is 1.5 Gn open and 3 Gn closed across 5–300 Hz; shock resistance is 6 Gn open and 10 Gn closed for 11 ms. That's enough for conveyor lines and pump skids but not for a crusher or hammer mill without extra isolation.
Safety timing and standards
Complies with EN/IEC 60947-1, -4-1, and -5-1, plus the Chinese GB/T equivalents, and EN/IEC 60335-1 Clause 30.2 and -2-40 Annex JJ for appliance applications.