The Schneider Easy TeSys LC1E38004F7IN is a 4-pole contactor with four normally-open (4 NO) main poles, rated for AC-1 utilisation category — meaning it's built for resistive loads like heaters or lighting banks, not for motor switching. The AC-1 rating at ≤415 V is 20 A, and the coil is 110 V AC. That AC-1 duty class is the one that governs the real use: resistive loads draw steady current with no inrush, so the contactor doesn't need the arc-quenching headroom of an AC-3 motor-rated part. Depth is 93 mm, height 64 mm. The IP2X finger protection means it's safe for open-panel mounting inside an enclosure.
What the standards and ratings mean for fit
The contactor complies with EN/IEC 60947-1 (general rules), 60947-4-1 (contactors and motor-starters), and 60947-5-1 (control-circuit devices). The GB/T equivalents cover the Chinese market. Altitude rating is 3000 m — above that, derate for air density and dielectric strength. Mechanical robustness is specified for vibration (1.5 Gn open, 3 Gn closed) and shock (6 Gn open, 10 Gn closed), so it holds up on a machine subject to moderate mechanical stress.
At 56 mm wide and 93 mm deep, it takes up one standard 4-pole contactor slot on the DIN rail. The 110 V AC coil is a common control voltage — verify the control transformer taps match. For resistive loads, no snubber is strictly required, but if the load is switched frequently, a varistor across the coil extends contact life.