The LX1FL750 is a replacement contactor coil from the TeSys range, designed for the LX1F series contactors. It operates on a 750 V AC 50/60 Hz control circuit, which means it is intended for installations where the control voltage matches that level — common in certain industrial power distribution schemes where a 690 V or 750 V control transformer feeds the coil.
Rated for 750 V AC at 50/60 Hz, this coil is not a standard 24 V or 230 V unit — it serves a specific niche where the control circuit voltage is elevated. The 5 Mcycles mechanical durability rating tells you the contactor mechanism (with this coil) is rated for 5 million operations before mechanical wear-out, which is typical for general-purpose switching duty in conveyors, pumps, or fan starters. The maximum operating rate of 1200 cycles per hour at 131 °F (55 °C) means the coil can be energized and de-energized up to 1200 times per hour without exceeding thermal limits at that ambient temperature. For applications requiring faster cycling — like a rapid-pick-and-place station — you would need to derate or select a DC-operated coil with lower thermal rise. This coil does not include a built-in suppressor module. That means you must add an external snubber or free-wheeling diode across the coil terminals if the control circuit drives inductive loads (like a PLC output or relay) that could be damaged by the back-EMF spike when the coil de-energizes.