It's built for control-circuit logic — extending a contactor or relay stack with extra NO poles for PLC inputs, pilot lights, or interlocking.
Ratings that matter for the fit
Rated operational current is 10 A at 24 V, dropping to 6 A at 230 V and 3 A at 400 V — so at line voltage the contacts handle a 3 A resistive load, not the full 10 A you see at 24 V. The coil circuit is rated for 0.8–1.1 A at 50 Hz and 0.85–1.1 A at 60 Hz, which governs the control transformer sizing. Pollution degree 3 means it's suited for the conductive-dust and humidity you get in a typical control cabinet, not a clean room.
That helps when you're packing a dense panel and the DIN rail isn't perfectly level. Conductor cross-sections accepted are 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm² solid — covers most control wiring with room for daisy-chaining. Dimensions are 45 mm wide, 57.5 mm high, 72 mm deep, so it fits the standard S00 footprint.