The LC2K09004F7: Preassembled reversing contactor from the TeSys K line, 4-pole changeover with mechanical interlock, 110 V AC coil. AC-1 rated for resistive loads up to 20 A continuous. Screw-clamp terminals accept 1.5–4 mm² solid or stranded; mounts to plate or DIN rail.
The AC-1 utilisation category (resistive load) gives an electrical durability of 0.16 Mcycles at 20 A under 690 V. The 110 V AC control circuit draws 30 VA inrush at 20 °C, with operating time 10–20 ms for both closing and opening. Heat dissipation sits at 1.3 W – negligible for panel cooling calculations.
Tightening torque 0.8–1.3 N·m on the screw terminals. IP20 finger-safe protection per VDE 0106. Overvoltage category III suits fixed-installation distribution panels. Rated breaking capacity reaches 110 A at 380–440 V AC per IEC 60947 – margins well above the continuous rating.
