What you're looking at
It's rated to switch motor loads at 52 A continuous in AC-3 duty at 480 V — that's the number that matters for picking the right motor starter. The coil pulls 230 V at 50 Hz and draws 0.36 A holding current (0.39 A at 60 Hz). Screw-type terminals on the coil and main contacts, so no special tooling needed for a panel rebuild.
Panel fit and clearances
This contactor measures 55 mm wide by 114 mm tall by 174 mm deep. You need 10 mm clearance above, below, and in front, and only 6 mm on the sides, so it packs tight in a crowded enclosure.
Ratings for the real route
The AC-3 rating at 52 A and 480 V is what governs motor switching. For lighter duty, AC-1 resistive loads can cycle up to 1 000 operations per hour, while AC-4 (plugging/inching) tops out at 250 per hour.