Which file should I choose?
Use 1SDH001294R0077.stp (revision A) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified 1SDH001294R0077.stp.

ABB A2 2p DIN Rail: original STEP for cable-routing hardware layouts.
Conductors carry electrical power or signals between equipment. The drawing marks show which paths connect and which simply pass one another.
Use 1SDH001294R0077.stp (revision A) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified 1SDH001294R0077.stp.
1 inspected original for ABB A2 2p DIN Rail: 1SDH001294R0077.stp (STEP).
STEP · 28 KB · Rev A
Download filename: 1SDH001294R0077.stp
Original manufacturer STEP geometry
1 inspected original for ABB A2 2p DIN Rail: 1SDH001294R0077.stp (STEP).
ABB supplied the original files through https://search.abb.com/library/Download.aspx?DocumentID=1SDH001294R0077&LanguageCode=en&LanguageCode=it&DocumentPartId=&Action=Launch. The source reference, revision, original bytes and checksum are retained with each download.
Original publisher: ABB. Source checked 2026-11-11. Original bytes are preserved; file links and document references identify the source.
Manufacturer source discovery; confirm the exact regional equipment configuration and certification separately.
More cable management · More ABB drawings · Request other equipment