The LX4D6VD is a replacement coil for the TeSys D contactor line, specifically the LX1D6 device short name. It's the part you swap when the original coil burns out or you're converting a contactor to a different control voltage. The coil is rated for 348 V DC control circuits, with a measured resistance of 51.9 Ohm at 68 °F (20 °C). This coil has no built-in suppressor module, so you'll need to add an external flyback diode or RC snubber across the coil terminals if your application requires it — standard practice for DC coils driving inductive loads.
The coil's inductance when closed is 4.18 H, which governs the inrush current profile and the suppression you'll need. Ambient operating temperature range is 23 to 140 °F (-5 to 60 °C), so it's fine for most indoor panel environments but not for direct exposure to ovens or outdoor cabinets in direct sun without derating.