It carries 4 normally-open main contacts and is rated for a 24 V 50/60 Hz coil, meaning it pulls in reliably on standard control transformers. The spring-loaded terminals on the main current circuit accept 2x (0.25... 2.5 mm²) solid or stranded wire, so no ferrule crimping is needed for the smaller gauges.
The AC-12 maximum operating current is 10 A, which is the resistive load capability for control circuits. For DC switching, the contactor is rated 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — these are the DC-1 or DC-13 style values, so check your inductive DC load against the curve.
Width is 45 mm, height 60 mm, depth 72 mm — the 72 mm depth means it will clear most shallow enclosures, but check your gland plate clearance. Side-by-side mounting is allowed with no derating, which saves rail space in a dense panel.