It mounts directly onto a contactor (contactor mounting, per the spec), so the whole motor starter assembly — contactor plus overload — occupies a single DIN-rail footprint in the panel.
The S0 frame gives you a 45 mm wide × 97 mm tall × 96 mm deep package — the standard Siemens S0 footprint, so it drops into any panel already laid out for S0 starters without re-drilling or re-spacing. Screw-type terminals on main and auxiliary circuits: 2× (0.5…1.5 mm²) solid or 2× (0.75…2.5 mm²) stranded for aux contacts, and 2× (16…12) AWG or 2× (14…8) AWG for main power terminals. The relay is designed for a protected enclosure. Rated surge voltage resistance of 6 kV, shock resistance of 8g / 10 ms, and an operating temperature range of -20 to +70 °C with 100 % relative humidity — this is a robust industrial relay that handles the vibration and thermal cycling of a typical machine-tool or conveyor line.
RoHS compliance date of 07/01/2006 is on record, and the IEC 81346-2 reference code is F (protective device).