The LX0FK055 is a DC low-consumption contactor coil for the TeSys F range, rated for 48 V DC control voltage. It is the replacement coil for LX0FK contactors in that series, with a latching operating time of 50 to 100 ms and an unlatching time of 40 to 80 ms. The coil draws a latching resistance of 4.42 Ω at 68 °F (20 °C) and an unlatching resistance of 41 Ω at the same temperature. Control voltage limits are 0.85 to 1.1 Uc for both latching and unlatching, meaning the coil holds in reliably at 40.8 to 52.8 V DC and drops out below that band.
Schneider Electric has marked the LX0FK055 as obsolete. Plan for a last-time-buy if you still have TeSys F contactors in service that need this coil.
Deployment context
This coil mounts into TeSys F contactors, which are typically DIN-rail or panel-mounted in motor control centers and distribution panels. The DC low-consumption design keeps the control circuit draw minimal — useful for PLC-driven 48 V DC control loops where every milliamp matters. Rated for 1 Mcycles mechanical durability and a maximum operating rate of 120 cycles per hour at 104 °F (40 °C), it suits moderate-duty switching applications like conveyor or pump control where the contactor cycles a few times per hour, not high-speed pick-and-place.