The LX0FK007 is a replacement contactor coil for the TeSys F contactor range, rated for 127 V AC across 50...400 Hz or 127 V DC control circuits. Coil resistance measures 9.56 Ω in the latching winding and 1159 Ω in the unlatching winding at 20 °C — these numbers let you verify the coil is intact before installation with an ohmmeter, especially if the old coil failed shorted or open. Operating time is 50...100 ms for unlatching and 40...80 ms for latching, which is typical for this contactor frame size and means the coil can handle fast cycling within the 120 cycles/hour maximum at 104 °F (40 °C).
Control voltage and limits
The control circuit accepts 127 V AC or DC, with a tolerance band of 0.85...1.1 Uc for both latching and unlatching. That means the coil stays pulled in from about 108 V to 140 V — useful to know if your control transformer sags under load or if you're running a long cable run where voltage drop is a concern.
Mechanical durability and deployment context
Rated for 1 million mechanical cycles, the coil is designed for the TeSys F contactor frame — a common fit inside motor control centers and panel-mounted contactor assemblies where the coil snaps onto the contactor base. The 120 cycles/hour limit at 40 °C is the thermal ceiling; pushing past it shortens life on the varnish and the plunger mechanism.