The LX1FL090 is a replacement coil for the TeSys F range of contactors, rated for a 90 V AC control circuit at 50/60 Hz. It is specified without a built-in suppressor module, meaning you must add external suppression (RC snubber or varistor) across the coil terminals if driving it from a PLC output or electronic controller — the coil's inductive kickback can otherwise damage solid-state drivers or cause nuisance noise on the control wiring.
Durability and operating rate
Mechanical durability is rated at 5 Mcycles, which covers the lifetime of most conveyor, pump, or fan contactor applications without mid-life replacement. The maximum operating rate of 1200 cycles per hour at 131 °F (55 °C) sets the thermal limit for high-speed cycling — stay below this rate to avoid coil overheating in a warm enclosure.