Specifications Product Name: Schneider Electric TeSys Giga AC Contactor Model: LC1G400KUEN Device Type: Industrial AC contactor (power switching device) Number of Poles: 3 poles (3 normally‑open main contacts) Utilisation Categories: AC‑1 (general loads), AC‑3 (motor control), AC‑3e, AC‑4, AC‑5a/b, AC‑6a/b, AC‑8a/b, DC‑1, DC‑3, DC‑5 Rated Operational Current (AC‑3): 400 A at ~440 V AC Rated Operational Current (AC‑1): 550 A at ~1000 V AC Rated Operational Voltage (Power Circuit): Up to 1000 V AC (three‑phase) / up to ~460 V DC Control (Coil) Voltage: 100–250 V AC/DC wide‑range electronic coil Conventional Free‑Air Thermal Current: 550 A @ 40 °C Rated Impulse Withstand Voltage: ~8 kV Rated Breaking Capacity: ~3480 A at 440 V Short‑Time Withstand Current: e.g., ~3.6 kA for 10 s, ~2.4 kA for 30 s, etc. Auxiliary Contacts: Typically includes 1 normally‑open (NO) + 1 normally‑closed (NC) auxiliary block Connection Type: Bolt connections for main circuit; spring or push‑in terminals for control circuit Operating Temperature: Approx. –25 °C to +60 °C, suitable for harsh industrial environments Mechanical Durability: High cycle life suitable for frequent switching Applications: Industrial motor starters, power switching, automation panels, large AC load control