Which file should I choose?
Use 1SCC304001F0001.dxf (revision A) to insert the supplied editable drawing into your layout.
Use OT160-250E03Y.STP.stp (revision A) to place the original solid geometry in your 3D assembly.

ABB OT160-250E03Y: original DXF / STEP for switching or transfer equipment layouts. 1SCC304001F0001, OT160E03Y, OT200E03Y, OT250E03Y, OT160E03YP, OT200E03YP, OT250E03YP, transfer switch, transfer switches.
Switchgear groups the devices that connect, disconnect and protect power circuits. A switchboard takes an incoming supply and distributes it to outgoing circuits.
Use 1SCC304001F0001.dxf (revision A) to insert the supplied editable drawing into your layout.
Use OT160-250E03Y.STP.stp (revision A) to place the original solid geometry in your 3D assembly.
2 inspected originals for ABB OT160-250E03Y: 1SCC304001F0001.dxf (DXF); OT160-250E03Y.STP.stp (STEP). The manufacturer describes this configuration as 1SCC304001F0001, OT160E03Y, OT200E03Y, OT250E03Y, OT160E03YP, OT200E03YP, OT250E03YP, transfer switch, transfer switches.
DXF · 2.5 MB · Rev A
Download filename: 1SCC304001F0001.dxf
Original manufacturer DXF geometry
STEP · 1.8 MB · Rev A
Download filename: OT160-250E03Y.STP.stp
Original manufacturer STEP geometry
2 inspected originals for ABB OT160-250E03Y: 1SCC304001F0001.dxf (DXF); OT160-250E03Y.STP.stp (STEP). The manufacturer describes this configuration as 1SCC304001F0001, OT160E03Y, OT200E03Y, OT250E03Y, OT160E03YP, OT200E03YP, OT250E03YP, transfer switch, transfer switches.
ABB supplied the original files through https://search.abb.com/library/Download.aspx?DocumentID=1SCC304001F0001&LanguageCode=en&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.
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