Which file should I choose?
Use OTKM404023PBL.STP.stp (revision B) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified OTKM404023PBL.STP.stp.

ABB OTKM404023PBL: original STEP for switching or transfer equipment layouts. OTKM404023PBL.stp, OT125GDUU3BZ, 1SCA148446R1001, OT125GLUU6BZ, 1SCA148482R1001.
Switchgear groups the devices that connect, disconnect and protect power circuits. A switchboard takes an incoming supply and distributes it to outgoing circuits.
Use OTKM404023PBL.STP.stp (revision B) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified OTKM404023PBL.STP.stp.
1 inspected original for ABB OTKM404023PBL: OTKM404023PBL.STP.stp (STEP). The manufacturer describes this configuration as OTKM404023PBL.stp, OT125GDUU3BZ, 1SCA148446R1001, OT125GLUU6BZ, 1SCA148482R1001.
STEP · 152 KB · Rev B
Download filename: OTKM404023PBL.STP.stp
Original manufacturer STEP geometry
1 inspected original for ABB OTKM404023PBL: OTKM404023PBL.STP.stp (STEP). The manufacturer describes this configuration as OTKM404023PBL.stp, OT125GDUU3BZ, 1SCA148446R1001, OT125GLUU6BZ, 1SCA148482R1001.
ABB supplied the original files through https://search.abb.com/library/Download.aspx?DocumentID=OTKM404023PBL.STP&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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