The LX9FK922 is a specific contactor coil from the TeSys F range, designed as the replaceable coil assembly for TeSys F contactors. It is not a complete contactor — it is the coil-only service part you swap when the original coil fails or when you need to change the control voltage on an existing TeSys F contactor in the field. This coil operates on an 80-87 V AC or 80-87 V DC control circuit, with a low-consumption design that draws 29 W holding power at 20 °C and 470 W inrush. The control circuit accepts AC 40-400 Hz or DC low-consumption drive, so it covers both standard 50/60 Hz line and DC control panels without a separate rectifier.
Operating time is 60 ms opening and 20 ms closing — the fast close suits cyclic loads like conveyor indexing, while the slower open avoids nuisance trips from brief voltage sags. Control voltage limits are specified: operational range is 0.85 to 1.1 Uc at 55 °C, meaning the coil holds in reliably between roughly 68 V and 96 V. Dropout occurs between 0.3 and 0.5 Uc (24-44 V), which is a wide hysteresis — the contactor stays pulled in through brownout conditions down to about half nominal, then drops cleanly. This matters for installations on weak supply lines or shared control transformers. Heat dissipation is 15-18.3 W, which adds to the thermal load inside the enclosure. If you are packing multiple TeSys F contactors into a sealed panel, account for this in the ventilation or derating calculation — especially at the upper ambient of 55 °C.
The coil ships without a built-in suppressor module. If your application requires surge suppression across the coil — common on PLC-driven outputs or when sharing a DC supply with sensitive electronics — you will need to add an external RC snubber or free-wheeling diode across the coil terminals. This is a standard field practice on TeSys F contactors, but worth flagging if you are replacing a coil that had a suppressor integrated.