Which file should I choose?
Use OX_260-400E_3X2_T_.stp (revision A) to place the original solid geometry in your 3D assembly.

ABB OX 260-400E 3X2 T: original STEP for switching or transfer equipment layouts. Automatic Transfer Switches TruONE, OX_260-400E_3X2_T_, stp-file, 3D.
Switchgear groups the devices that connect, disconnect and protect power circuits. A switchboard takes an incoming supply and distributes it to outgoing circuits.
Use OX_260-400E_3X2_T_.stp (revision A) to place the original solid geometry in your 3D assembly.
1 inspected original for ABB OX 260-400E 3X2 T: OX_260-400E_3X2_T_.stp (STEP). The manufacturer describes this configuration as Automatic Transfer Switches TruONE, OX_260-400E_3X2_T_, stp-file, 3D.
STEP · 3.3 MB · Rev A
Download filename: OX_260-400E_3X2_T_.stp
Original manufacturer STEP geometry
1 inspected original for ABB OX 260-400E 3X2 T: OX_260-400E_3X2_T_.stp (STEP). The manufacturer describes this configuration as Automatic Transfer Switches TruONE, OX_260-400E_3X2_T_, stp-file, 3D.
ABB supplied the original files through https://search.abb.com/library/Download.aspx?DocumentID=OX_260-400E_3X2_T_&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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