What this coil is and what it mates to
The LX1D83LSE is a control module (contactor coil) from the TeSys Deca Advanced line, designed specifically to drive the LC1D115A through LC1D150A three-pole contactors. It is not a standalone contactor — it is the replaceable coil assembly that snaps onto the contactor base. If you are sourcing this for a panel with an LC1D115A or LC1D150A that has a failed coil, this is the direct fit.
Coil voltage — the wide-range advantage
Rated for 200...500 V AC/DC, this is a wide-range coil that accepts both AC and DC control voltages across a broad band. That means one part number covers 240 V, 277 V, 400 V, and 480 V control circuits without swapping coils. The hold-in power consumption sits at 5.1 W (16.5 VA) at 20 °C — modest enough that a standard PLC relay output can drive it, but the inrush is 120 W (170 VA) at 20 °C, so verify your control transformer is sized for the pull-in surge if multiple coils pick simultaneously.
Mechanical durability and thermal load
Rated for 8 million mechanical cycles, this coil is built for high-cycling applications like conveyor lines or pump sequencing where the contactor opens and closes frequently. The steady-state heat dissipation is 3 W — negligible in a ventilated enclosure, but if the coil is in a sealed panel with other heat sources, the 5.1 W hold-in power adds up. The control circuit voltage limits are 0.8 to 1.1 times Uc at temperatures below 60 °C, so a 200 V minimum control supply at the low end of the range means the coil drops out cleanly below 160 V — no partial-pickup chatter.