Siemens SIRIUS auxiliary contactor 3RH1140-2AF00-ZW98. Four NO instantaneous contacts, size S00 frame — the smallest SIRIUS footprint. Screw and snap-on mounting to DIN rail, 45 mm wide. IP20 front protection, so it lives inside the enclosure, not on the panel face.
Rated for 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — those are the thermal current limits for the contacts at those voltages. Surge voltage resistance 6 kV, pollution degree 3, so it holds up in industrial panels where conductive dust and humidity are normal.
Mounting and wiring — no surprises
Screw terminals accept 2x 0.25 to 2.5 mm² solid. That covers most DIN-rail layouts without needing a special bracket.