The LX4FH190 is a replacement contactor coil from the Schneider Electric TeSys range, designed for DC wide-range control circuits at 190 V DC nominal. The coil operates within 0.85...1.1 Uc at 131 °F (55 °C) and drops out between 0.15...0.2 Uc at the same temperature, giving a reliable pick-up and drop-out window for DC control schemes.
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Coil Specifications in Context
The coil has no built-in suppressor module, so an external flyback diode or RC snubber must be added across the coil terminals when driven by a PLC or solid-state output to prevent voltage spikes from damaging the driver. Average coil resistance is 52.32 Ω inrush and 11242 Ω holding at 68 °F (20 °C). The high holding resistance relative to inrush is characteristic of DC economized coil designs, meaning the coil draws a brief high current to pull in, then settles to a low holding current.