The TeSys LX4FJ080 is a replacement contactor coil for the FJ series of contactors, operating on an 80 V DC control circuit. This is a DC low-consumption coil, meaning it draws a brief inrush current then settles to a lower holding current — the average resistance measures 6.3 Ω inrush and 1701 Ω holding at 20 °C. The coil opens the contactor in 45 to 60 ms and closes it in 50 to 60 ms.
The 80 V DC control voltage is the nominal; the coil will pick up reliably between 68 V DC and 88 V DC (0.85 to 1.1 Uc at 55 °C) and will drop out between 16 V DC and 28 V DC (0.2 to 0.35 Uc at 55 °C). That drop-out range is important for safety circuits — if your control supply sags, the contactor drops out cleanly before the load loses control.
