Overview
The LX4FG020 is a Schneider TeSys F contactor coil, order code LX4FG020, rated for 24 V DC wide-range control and 800 W power handling, with a power consumption of 5 W and an inductance of 9.3 mH. It is supplied in a PCE package without a built-in suppressor module, designed for use with TeSys F LC1F contactors such as the LC1F225 and LC1F185.
This coil generates the magnetic force to close the contactor's main poles when 24 V DC is applied. The 5 W power consumption is the steady-state holding power after the inrush — low enough to keep thermal rise in the panel manageable on a densely populated DIN rail. The 0.52 Ω resistance and 9.3 mH inductance define the coil's electrical signature; the 30 ms operating time is the interval from energization to full pole closure, relevant for sequencing logic in reversing or star-delta starters. The maximum operating rate of 60 cycles per hour at 70 °C sets a hard limit for frequent switching applications. Because the coil ships without a built-in suppressor module, the installer must add an external flyback diode or RC snubber across the coil terminals to protect the DC control circuit from voltage spikes during de-energization.
Applications
TeSys F contactor coils like the LX4FG020 are used in motor control centers, conveyor systems, pump panels, and HVAC equipment where the contactor must be energized from a 24 V DC control bus — common in PLC-driven or battery-backed installations.