The Schneider Electric LC1E95004N5WB is a 4-pole contactor from the Easy TeSys Control range, rated for 125 A in AC-1 duty at up to 440 V — that is the resistive-load rating, so it handles heater banks, lighting, or transformer primaries where inrush is modest. The coil is 415 V AC 50 Hz, wide-range tolerance, with a drop-out band of 0.3 to 0.6 Uc and pick-up from 0.7 to 1.25 Uc across -5 to 55 °C. Mounts on DIN rail or a plate, IP20 finger-safe, so it goes into a standard control panel without special sealing.
The headline 125 A at 440 V AC-1 is the continuous resistive current — not a motor-starting figure. If you are switching a motor load, you need the AC-3 rating (not listed here), so this part is sized for resistive banks or distribution, not induction motors. The 4 NO pole composition means all four poles switch the line; no auxiliary contacts are built in, so plan for a separate auxiliary block if you need feedback to a PLC. Breaking capacity is 760 A at 440 V, and making capacity is 950 A — both per IEC 60947, so it clears fault currents without welding contacts under normal conditions.
Screw clamp terminals on both power and control circuits. Power side accepts 4 to 50 mm² solid or flexible with ferrule; control side takes 1 to 4 mm². Tightening torque is 12 N·m on power, 1.2 N·m on control — a torque screwdriver is needed to avoid terminal damage. The 95 mm width and 135 mm depth mean it occupies roughly three 18 mm DIN-module spaces; plan panel layout accordingly. Heat dissipation is 6 to 10 W on the control circuit and 12 W per pole on AC-1, so ensure ventilation or spacing in a dense enclosure.