Overview
The LX4FK055 is a 55 V DC low-consumption coil for the TeSys F LC1F500 contactor frame, drawing a 2.94 Ω resistance and no built-in suppressor module.
Selection vs LX1FJ048
The LX1FJ048 is an AC 40...400 Hz coil at 48 V with 15 W power consumption, while the LX4FK055 is a DC low-consumption coil at 55 V — they are not electrically interchangeable; pick the LX4FK055 for a DC control bus and the LX1FJ048 for an AC line.
Schneider lists the LX4FK055 as active; it is a current catalogue item for the TeSys F range, available through standard distribution channels.