What this contactor is for
The LC1G225LSEA is a 3-pole TeSys Giga contactor from Schneider. Coil accepts 200-500 V AC or DC, rated for AC-3e duty at 110 kW on 400 V.
What the numbers actually mean for the BOM
Mechanical durability is 8 Mcycles — that's not a lab number; that's a decade of full-speed production cycling. The power dissipation per pole runs 20 W in AC-1 and 8 W in AC-3, so thermal management is straightforward: standard panel ventilation will do. The contactor is also TH-treated for humidity resistance, which matters if the panel breathes ambient air. Associated fuse recommendations are given for aM, gG, and UL Type J — the 250 A aM and 200 A aM ratings let you size the short-circuit protection without digging into coordination software. The 400 A gG and Type J cover the full-load and backup roles.
Wiring and mounting in the real world
Mechanical vibration tolerance is 2 gn open and 4 gn closed (5-300 Hz), shock 15 gn closed — it'll stay put on a machine tool or pump skid.
