Which file should I choose?
Use OTRK251611PBB.STP.stp (revision B) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified OTRK251611PBB.STP.stp.

ABB OTRK251611PBB: original STEP for switching or transfer equipment layouts. OTRK251611PBB.stp OTR25A6B 1SCA022745R7510 OTR25T6B 1SCA022580R8250 OTR36A6B 1SCA022745R7600 OTR36T6B 1SCA022580R8330.
Switchgear groups the devices that connect, disconnect and protect power circuits. A switchboard takes an incoming supply and distributes it to outgoing circuits.
Use OTRK251611PBB.STP.stp (revision B) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified OTRK251611PBB.STP.stp.
1 inspected original for ABB OTRK251611PBB: OTRK251611PBB.STP.stp (STEP). The manufacturer describes this configuration as OTRK251611PBB.stp OTR25A6B 1SCA022745R7510 OTR25T6B 1SCA022580R8250 OTR36A6B 1SCA022745R7600 OTR36T6B 1SCA022580R8330.
STEP · 615 KB · Rev B
Download filename: OTRK251611PBB.STP.stp
Original manufacturer STEP geometry
1 inspected original for ABB OTRK251611PBB: OTRK251611PBB.STP.stp (STEP). The manufacturer describes this configuration as OTRK251611PBB.stp OTR25A6B 1SCA022745R7510 OTR25T6B 1SCA022580R8250 OTR36A6B 1SCA022745R7600 OTR36T6B 1SCA022580R8330.
ABB supplied the original files through https://search.abb.com/library/Download.aspx?DocumentID=OTRK251611PBB.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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