The Schneider Electric TeSys LX4D6ND is a replacement contactor coil for the LX1D6 contactor family, designed for a 60 V DC control circuit. It's the part that pulls the contactor in — no coil, no switching. The 51.9 Ohm resistance at 68 °F (20 °C) and 4.18 H inductance of the closed circuit define the inrush and hold characteristics for the control transformer sizing.
Rated for 60 V DC control voltage. The coil lacks a built-in suppressor module. Mechanical durability is 10 Mcycles, maximum operating rate 3600 cyc/h at 140 °F (60 °C). Ambient temperature range is 23 to 140 °F (-5 to 60 °C).