The Schneider Electric LX4FL055 is a replacement contactor coil from the TeSys range, specifically the FK type, designed for 55 V DC control circuits. It operates with opening times of 40 to 50 ms and closing times of 60 to 70 ms, and is supplied without a built-in suppressor module.
Sourcing Reality: Obsolete Status
For procurement, this means the LX4FL055 must be sourced through surplus or broker channels.
The 55 V DC control voltage is the nominal coil rating; the control circuit voltage limits are a dropout range of 0.2 to 0.35 Uc and an operational range of 0.85 to 1.1 Uc at 131 °F (55 °C). Rated for an ambient operating temperature of 23 to 131 °F (-5 to 55 °C), so it is suited for standard indoor panel environments without special cooling.