The relay mounts directly to a SIRIUS contactor or stands alone via screw terminals, and the IP20 front protection keeps live parts behind the panel door.
Stand-alone installation is the intended fastening method, so no adapter plate is needed. Zero clearance is required upwards, forwards, backwards, and downwards; only 6 mm side clearance is needed.
Ratings that matter for the wire-up
The main circuit uses screw-type terminals accepting 1x (20–16), 1x (18–14), or 1x 12 AWG. Auxiliary and control circuits also use screw terminals, taking 2x (20–16) or 2x (18–14) AWG. For metric builds, the solid and finely stranded ranges are identical: 2x (0.5–1.5 mm²) and 2x (0.75–2.5 mm²). The auxiliary contact ratings cover common control voltages: 1 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V. Each pole dissipates 1.9 W, so total heat in the enclosure is 5.7 W for the three poles — factor that into your thermal budget.