The LX1D84KUE is a control coil module from the TeSys Deca Advanced line, built to drive the LC1DT200A 4-pole contactor. It's the wide-range version, meaning one coil covers 100-250 V AC/DC without swapping out the magnet assembly. That's a real time-saver on the panel bench when you're wiring up a batch of starters and the control voltage varies between machines. Rated for 4-pole compatibility, this module snaps onto the contactor body and handles the pull-in and hold-in duties. Inrush hits 105 W (170 VA) at 20 °C to pull the armature closed, then settles to 4.5 W (8 VA) holding — a 23:1 ratio that keeps the coil cool in a sealed enclosure.
The 1.1 W heat dissipation is the steady-state thermal load this coil dumps into the panel. Control voltage tolerance is 0.8 to 1.1 times Uc at under 60 °C. So on a 120 V line, it holds in from 96 V to 132 V; on 240 V, from 192 V to 264 V. That's a solid margin for brownout conditions or long cable runs where voltage drop is a concern. Dropout happens below the 0.8 Uc threshold, which is typical for wide-range AC/DC coils. Mechanical durability is rated at 8 million cycles. That's a long service life for a contactor coil — you'd wear out the main contacts long before this coil gives up in normal motor-starting duty. It's the kind of number that tells you this module is built for the route, not for a bench test.