TeSys F, contactor coil, LX1FK, 220…230 V AC 40…400 Hz. range: TeSys – product or component type: contactor coil – device short name: LX1FK – product compatibility: LC1F500 – average resistance: 35.5 Ohm inrush at 20 °C, 915 Ohm holding at 20 °C – inductance of closed circuit: 4.55 H – operating time: 100…170 ms opening, 40…75 ms closing.