It carries a conventional free-air thermal current (Ith) of 1250 A at 40 °C and a rated operational current (Ie) of 1000 A in AC-3 duty at <=440 V, 50/60 Hz — meaning it can switch a 560 kW motor at 380–400 V three-phase, or up to 670 kW at 440 V. The coil is 440 V AC, 40–400 Hz, with closing time 40–80 ms and opening 100–200 ms. This is a plate-mount device (438 mm wide, 332 mm tall, 238.6 mm deep) with IP20 protection on the front face when shrouds are fitted, per IEC 60529 and VDE 0106. Power connections are via bar terminals; control wiring uses screw clamp terminals accepting 1–4 mm² flexible or solid.
Key ratings in context
The 1000 A AC-3 rating governs motor switching; the 1250 A AC-1 rating covers resistive loads. Rated breaking capacity is 8 kA per IEC 60947-4-1, and the short-time withstand (Icw) is 10 kA for 10 seconds at 40 °C — enough for coordination with upstream fuses up to 1400 A gG at <=440 V. The contactor is rated for 600 cycles per hour at 55 °C. Insulation voltage (Ui) is 1000 V per IEC 60947-4-1, with an impulse withstand (Uimp) of 8 kV and overvoltage category III.
The LC1F1000R7 is certified to IEC 60947-4-1, IEC 60947-1, EN 60947-1, and EN 60947-4-1. Protective treatment is TH (tropicalized). The front face with shrouds carries IP20 protection.