The LX9FJ924 is a specific contactor coil from the TeSys F range, designed as the replacement coil for TeSys F contactors. It's not a universal coil — it's the dedicated magnet assembly for that frame size. The control circuit accepts 100-110 V AC at 40-400 Hz or 89-99 V DC, so it covers both common industrial control voltages without needing a separate rectifier.
The coil draws 500 VA inrush at 68 °F (20 °C) across 40-400 Hz, and holds at 23 VA. That inrush figure matters for sizing the control transformer — a 500 VA surge on a marginal transformer can cause a voltage dip that prevents the contactor from pulling in. Heat dissipation runs 11.4-13.9 W, so if the coil is in a tightly packed panel, account for that thermal load. The coil ships without a built-in suppressor module; if your control circuit needs one, you'll add it externally.
Control voltage limits and temperature range
The coil operates reliably between 0.85 and 1.1 times the control voltage (Uc) at 131 °F (55 °C), and drops out between 0.3 and 0.5 Uc. That means on a 110 V AC system, it holds in down to about 93.5 V and drops out around 33-55 V — good for brownout ride-through. Ambient operating temperature is -5 to 55 °C (23-131 °F), which is standard for indoor panel environments.