The LX9FH3202 is a specific contactor coil from the TeSys F range, designed as the control-circuit component for TeSys F contactors. It operates on a 316 to 340 V AC control circuit at 40 to 400 Hz, with a low-consumption design that draws 8 to 10 VA holding power and 560 to 660 VA inrush at 68 °F (20 °C). The coil's average resistance measures 136.1 Ω inrush and 2892 Ω holding at the same temperature.
The 316 to 340 V AC control voltage range means this coil is intended for line-voltage control circuits in regions where nominal supply is 400 V three-phase, typically tapped phase-to-phase at 347 V. The 0.85 to 1.1 Uc operational limit (268 to 374 V AC at 131 °F) and 0.35 to 0.55 Uc drop-out range (110 to 187 V AC) define the voltage window for reliable pick-up and guaranteed release — critical for coordinating with undervoltage protection schemes. The opening time of 25 ms and closing time of 45 ms are fast enough for general motor switching but not for high-speed inverter bypass applications where sub-10 ms response is needed. Heat dissipation of 8.4 to 10.4 W means the coil contributes measurable thermal load inside the enclosure. In a densely packed panel, this must be factored into the thermal budget — especially if the contactor cycles frequently at the maximum rate. The coil ships without a built-in suppressor module. For inductive-load switching, an external RC snubber or varistor across the coil terminals is required to limit voltage spikes and comply with EMC directives — a standard practice for AC control circuits.
As a TeSys F specific contactor coil, this part is deployed inside motor control centers and industrial control panels where TeSys F contactors are installed. It is the replaceable coil assembly for the contactor's electromagnetic drive — when the coil fails, you swap this component rather than the entire contactor.