The LX9FL923 is a specific contactor coil from the Schneider TeSys F range, designed to operate a TeSys F contactor when energized at 84 to 93 V DC. It is a low-consumption coil, drawing 48 W hold-in power at 68 °F (20 °C) with an inrush of 733 W at the same temperature. The coil technology is without a built-in suppressor module, so you'll need to add external suppression if the control circuit demands it. The control circuit accepts AC 40 to 400 Hz or DC low-consumption drive. Opening time is 60 ms, closing time 20 ms. Ambient operating temperature range is 23 to 131 °F (-5 to 55 °C).
The 84 to 93 V DC control voltage is tight — operational limits are 0.85 to 1.1 Uc at 131 °F (55 °C), meaning the coil will pick up reliably between roughly 71 V and 102 V DC. Drop-out occurs between 0.3 and 0.5 Uc (about 25 to 46 V DC). If your control supply sags below that, the contactor drops out. This matters for DC control buses with long cable runs or shared loads. Heat dissipation runs 22.8 to 27.8 W continuous. In a densely packed panel, that adds up — ensure adequate ventilation or derating if mounted alongside other heat sources. The 5 Mcycles mechanical durability is typical for a contactor coil; the limiting factor in practice is often the contactor's electrical endurance under load, not the coil itself.