The LX0FG057 is a replacement contactor coil from the TeSys F range, designed for 127 V DC low-consumption control circuits. It's the latching and unlatching coil set for TeSys F contactors — the 35...40 ms latching time and 50...100 ms unlatching time tell you the mechanical response you can expect when the control signal hits the coil.
The 127 V DC control voltage is the nominal operating level — the coil holds reliably within 0.85...1.1 Uc (about 108 V to 140 V DC) for both latching and unlatching. Below that dropout range, the contactor may chatter or fail to pick. The average resistance figures — 32.75 Ω for the latching coil and 732.64 Ω for the unlatching coil at 20 °C — let you calculate inrush and holding current for your DC supply sizing. Rated for 1 Mcycles mechanical durability and 120 cycles per hour at 40 °C, this coil is built for moderate-duty cycling applications — think conveyor sections or pump starters that cycle a few times per minute, not high-speed press applications.