The A9-22-00-87 is a 3-pole contactor from the A9 series, rated for 415-440 V at 50 Hz and 440-460 V at 60 Hz, 6 A. This is a standard-duty contactor for switching motor or resistive loads in a panel — the coil voltage matches the line voltage, so no separate control transformer is needed for the coil circuit.
The description reads A9 3P CONTR 415-440/50 440-460/6 — a 3-pole contactor for 415-440 VAC 50 Hz or 440-460 VAC 60 Hz, rated 6 A. That's a line-voltage coil contactor, common in older European-style panels where the contactor coil ties directly to the motor circuit voltage.