The Schneider Electric LC1F4002ED is a TeSys F contactor rated for 500 A in AC-1 utilisation category at ≤440 V and 40 °C, with a 48 V DC standard control coil. This is a 2-pole normally-open contactor built for resistive load switching — think large heating banks, furnace elements, or DC power supplies where the load current is non-inductive and the contactor sees steady-state current rather than motor inrush.
Mounts to a plate (not DIN rail), so plan for a sub-panel or backplate with bolted connections. Power circuit uses bar connections (30 x 5 mm) or ring terminals up to 150 mm²; control circuit uses screw clamp terminals accepting 1–4 mm² flexible or solid wire. Tightening torque is 35 N.m on the power side and 1.2 N.m on the control side — a torque wrench is expected for the main lugs.
Rated insulation voltage is 1000 V per IEC 60947-4-1, with a rated breaking capacity of 3200 A conforming to the same standard. The contactor dissipates 6 W holding power and 65 W per pole under AC-1 load — factor that into your enclosure thermal budget. Associated fuse protection: 400 A aM or 500 A gG at ≤440 V.