The LX1FH1552 is a replacement contactor coil from the Schneider Electric TeSys range, designed for LX1F contactors. The control circuit is 155 V AC at 40...400 Hz, so this is the voltage you need to supply from the panel to pull in the contactor. Coil technology is listed as without built-in suppressor module — meaning you'll need to add an external RC snubber or varistor across the coil if the control circuit drives inductive loads or long cable runs. The 8 W heat dissipation at rated voltage is steady-state; factor that into enclosure thermal rise.
Operating time is 100...170 ms opening and 40...65 ms closing. That's the mechanical stroke time — it tells you the contactor won't drop out faster than 100 ms, which matters for ride-through on voltage sags. The dropout threshold is 0.35...0.55 Uc (about 54 to 85 V AC), so the coil holds in down to roughly half the nominal voltage; below that it releases. Maximum operating rate is 2400 cycles per hour at 55 °C. That's one cycle every 1.5 seconds — fine for normal motor starting or resistive load switching, but not for high-speed jogging or frequent inching duty. Ambient operating temperature is -5 to 55 °C. Inside a closed panel near other heat sources, the top end gets tight — derate the operating rate or add ventilation if the panel ambient exceeds 40 °C.