Contactor coil for TeSys frame
The Square D LX4FK125 is a replacement coil for TeSys series contactors. It operates on a 125 V DC control circuit with low-consumption DC coil technology — no built-in suppressor module, so external free-wheeling diode or RC snubber must be added across the coil for DC switching applications. Rated opening time 45–60 ms, closing 50–60 ms. Mechanical durability rated at 10 Mcycles; maximum operating rate 2400 cycles per hour at 131 °F (55 °C). Inrush power 1100 W at 68 °F (20 °C), holding power 6 W — average inrush resistance 15 Ω, holding 2930 Ω. Inductance of the closed circuit is 400 H. Drop-out threshold is 0.2–0.35 Uc at 131 °F; operational range 0.85–1.1 Uc in the same temperature. Ambient operating range -5 to 55 °C.