The Schneider Electric TeSys Giga LC1G330LSEN is a 3-pole power contactor rated for motor control and general power switching. Its 330 A thermal current (Ith) in AC-1 duty means it handles resistive loads at that current continuously; the real motor ratings depend on voltage and duty cycle. At 400 V AC 50/60 Hz in AC-3e duty it switches 160 kW, and at 690 V it reaches 220 kW. The 200-500 V AC/DC control coil includes built-in bidirectional peak limiting, so you don't need an external varistor or RC snubber for coil suppression.
Standards and compliance — what the approvals mean
This contactor carries dual certification to EN/IEC 60947-4-1 and UL 60947-4-1, which means it is accepted for motor-controller duty in both IEC and North American panels. It also meets CSA C22.2 No 60947-4-1 for Canadian installations and JIS C8201-4-1 for Japanese markets. The additional IEC 60335-1 and UL 60335-2-40 listings cover its use in HVAC equipment — specifically heat-pump and refrigeration circuits where the contactor must pass the glow-wire and abnormal-operation tests of those appliance standards.
Mounting is plate-mount only — no DIN-rail clip on this frame size. Power terminals accept bar (32 x 10 mm max), lugs up to 185 mm², or bolted connections. Tightening torque for power connections is 35 N·m. The front face with shrouds provides IP2X finger protection per IEC 60529 and VDE 0106.
Mechanical and electrical endurance
Maximum operating rate is 600 cycles per hour in AC-3 or AC-3e duty, dropping to 150 cycles per hour in AC-4 (plugging/reversing). The B10d safety reliability figures are 400,000 cycles at nominal load and 3,000,000 cycles at mechanical load per EN/ISO 13849-1, which supports its use in safety-related control circuits where contactor failure must be predictable.
Fault current coordination
Rated making capacity is 3830 A at 440 V; breaking capacity is 2940 A at 440 V. Associated fuse recommendations are 400 A aM, 250 A aM, 500 A gG, or 600 A UL Type L at up to 600 V — these are the fuse sizes for Type 2 coordination (no damage to the contactor under short-circuit). For a 480 V panel in North America, the 250 hp rating at 460/480 V 60 Hz gives the motor nameplate limit.