Which file should I choose?
Use 1SCC303082F0001.dxf (revision A) to insert the supplied editable drawing into your layout. The ZIP contains the unmodified 1SCC303082F0001.dxf.

ABB OTM315-400E3C8D: original DXF for switching or transfer equipment layouts. OTM315E3C8D_, OTM315E3C8D230C, OTM400E3C8D_, OTM400E3C8D230C, dxf-file, 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 1SCC303082F0001.dxf (revision A) to insert the supplied editable drawing into your layout. The ZIP contains the unmodified 1SCC303082F0001.dxf.
1 inspected original for ABB OTM315-400E3C8D: 1SCC303082F0001.dxf (DXF). The manufacturer describes this configuration as OTM315E3C8D_, OTM315E3C8D230C, OTM400E3C8D_, OTM400E3C8D230C, dxf-file, transfer switch, transfer switches.
DXF · 763 KB · Rev A
Download filename: 1SCC303082F0001.dxf
Original manufacturer DXF geometry
1 inspected original for ABB OTM315-400E3C8D: 1SCC303082F0001.dxf (DXF). The manufacturer describes this configuration as OTM315E3C8D_, OTM315E3C8D230C, OTM400E3C8D_, OTM400E3C8D230C, dxf-file, transfer switch, transfer switches.
ABB supplied the original files through https://search.abb.com/library/Download.aspx?DocumentID=1SCC303082F0001&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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