Coil for TeSys contactors — 250 V DC control
The LX4D6UD is a replacement coil for Schneider Electric TeSys D and K series contactors, rated for 250 V DC control circuits. It is the coil portion of the LX1D6 device short name and carries no built-in suppressor module, so an external flyback diode or RC snubber must be added across the coil terminals when driven by a DC supply to protect the switching element from inductive kickback. Coil resistance measures 51.9 Ohm at 68 °F (20 °C), which translates to a holding current of roughly 4.8 A at nominal voltage — a figure that matters when sizing the control transformer or DC power supply for a panel with multiple contactors. That rate suits high-speed pick-and-place or packaging lines where the contactor cycles many times per minute.