It mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, and can be rotated ±180° on a vertical surface or tilted ±22.5° forward/backward — useful when fitting into a crowded panel where orientation isn't fixed.
That 750/h AC-3 figure is the maximum mechanical capability under load; for a conveyor or pump cycling every few seconds it will hold up, but for continuous high-speed jogging you need to stay under the AC-4 limit. The arcing time is 10–10 ms, consistent across the switching range.
Main contact wire range accepts solid or stranded 1–10 mm²; auxiliary contacts take 2x (0.5–1.5 mm²) or 2x (0.75–2.5 mm²). That 151 mm depth means it will sit flush with most 200 mm deep enclosures, but check the gland plate clearance if the panel is shallow.