Mounts via screw or snap-on onto a 35 mm DIN rail per DIN EN 60715, and the mounting position is flexible: ±180° rotation on a vertical surface, plus ±22.5° tilt forward/backward — useful when you're squeezing it into a tight enclosure corner.
The 52 A at 480 V rating is the AC-1 resistive load current — that's the maximum continuous current the main contacts can carry in a resistive circuit. For motor loads (AC-3 duty), the contactor is rated lower, but the 52 A figure tells you the contactor's thermal capacity: it can handle the inrush of a motor up to about 25 hp at 480 V without welding the contacts. The coil terminals are screw-type, so you'll need a screwdriver for termination — no spring-cage here. The main power terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire. Dimensions: 114 mm high, 55 mm wide, 130 mm deep. The 55 mm width is the standard S2 footprint.