The LX9FL936 is a specific contactor coil from the TeSys F range, designed to pull in and hold a TeSys F contactor. It operates on a control circuit voltage of 415...440 V AC (40...400 Hz) or 415...440 V DC, with an inrush power draw of 830 VA at 20 °C and a hold-in consumption of 47 VA. The coil draws 1670 Ω holding resistance at 20 °C, and the closed-circuit inductance is 11 H. Opening time is 60 ms, closing time 50 ms. There is no built-in suppressor module, so you will need to add a free-wheeling diode or RC snubber across the coil terminals if driving it from a PLC output or solid-state relay.
The 415...440 V AC/DC control voltage is the headline constraint: if your panel control supply is 480 V or 240 V, this coil will not pick up or may overheat. The operational voltage limits are 0.85...1.1 Uc at 55 °C, so the coil holds the contactor closed down to about 353 V and picks up reliably above 374 V. Drop-out occurs between 0.25 and 0.5 Uc (104...220 V), which is typical for AC-operated contactor coils — if your control supply dips during a motor start, the contactor may drop out before the supply recovers. Heat dissipation runs 22.8...27.8 W, so the enclosure must allow that thermal load to escape, particularly if the contactor is in a sealed cabinet. The mechanical durability of 5 million cycles and a maximum operating rate of 1800 cycles per hour at 70 °C tell you this is a standard industrial coil, not a high-speed application part.
