The 3ADT218518S0112: The 525 VAC supply voltage tells you this is a three-phase input for a standard European 400 V class line with a bit of headroom. The 20 A output current is the continuous DC rating — size your motor armature or field winding to stay under that. The H1 frame is the mechanical envelope: it's the smallest frame in the DCS880 family, so it's compact enough for a tight cabinet but still carries the full 20 A. The 55 dB(A) sound level is moderate — noticeable in a quiet control room but not loud enough to need an acoustic enclosure on the line side.
Sourcing and integration notes
The DCS880 series uses a standard fieldbus interface (not specified here, but typical for the family). The unit has 3 analog inputs and 2 analog outputs (, cites:,) — enough for a speed reference and a couple of process signals. The auxiliary terminals are IP00 (cites:), meaning they're open to the cabinet environment — plan for proper enclosure protection on the panel. Operating humidity range is 5 to 95% (cites:), so it handles damp plant-floor conditions as long as there's no condensation. The 50 Hz frequency (cites:) matches standard 50 Hz mains; if your site runs 60 Hz, verify with the drive's input section — the rectifier and DC link are typically fine, but the internal fan and control transformer may be frequency-sensitive.