The Schneider Electric LC1E40004E7IN is a 4-pole (4NO) contactor from the Easy TeSys Control range, rated for resistive load switching in AC-1 duty at 72 A up to 415 V. The 48 V coil makes it a fit for control transformers or 48 VDC auxiliary buses common in older panel designs.
The AC-1 rating of 72 A is the key selection number — it governs switching resistive loads (heaters, lighting banks, non-inductive circuits) at that current level. The contactor is not rated for motor starting (AC-3) duty, so don't spec it for a pump or conveyor without checking the load type. The 48 V coil holds in at nominal voltage; standard EN/IEC 60947-4-1 governs the contactor's performance for motor-starter applications, while EN/IEC 60947-5-1 covers the control circuit side.
DIN-rail or plate mounting, 85 mm wide by 127 mm tall by 110 mm deep — fits a standard 4-pole contactor footprint. Altitude rated to 3000 m without derating.