The LX4D7PD is a replacement contactor coil from the Schneider TeSys D range, designed for a 155 V DC standard control circuit and intended for use with an 80 A contactor. It is a DC standard coil without a built-in suppressor module, meaning the installer must provide external suppression — typically a free-wheeling diode across the coil — to manage the inductive kickback when the contactor drops out. The coil draws 22 W inrush and hold-in power at 68 °F (20 °C), with an average resistance of 1142.6 Ohm. The control circuit voltage limits are drop-out at 0.1...0.3 Uc and operational at 0.85...1.1 Uc, measured at up to 131 °F (55 °C). The time constant is 75 ms.
The 155 V DC control voltage is specific — not a common 24 V DC or 110 V DC coil. If your panel's control transformer or DC bus supplies 155 V DC, this coil is a direct swap. If your supply is different, the coil will not pull in reliably (the operational range is 0.85 to 1.1 Uc, so 132 to 170 V DC). The mechanical durability of 10 Mcycles and a maximum operating rate of 3600 cycles per hour at 140 °F (60 °C) mean this coil is rated for moderate-duty cycling, not continuous high-speed pick-and-place.