Which file should I choose?
Use 9AKK108469A7961.stp (revision A) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified 9AKK108469A7961.stp.

ABB 1SEP619517R0001-CT-ZLBM/ZUBM123-600/5-1-TE: original STEP for substation insulation or transformer equipment layouts.
A current transformer, or CT, produces a smaller measuring current related to the alternating current in a power conductor. Meters and protection relays use that signal to monitor the circuit.
Use 9AKK108469A7961.stp (revision A) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified 9AKK108469A7961.stp.
1 inspected original for ABB 1SEP619517R0001-CT-ZLBM/ZUBM123-600/5-1-TE: 9AKK108469A7961.stp (STEP).
STEP · 173 KB · Rev A
Download filename: 9AKK108469A7961.stp
Original manufacturer STEP geometry
1 inspected original for ABB 1SEP619517R0001-CT-ZLBM/ZUBM123-600/5-1-TE: 9AKK108469A7961.stp (STEP).
ABB supplied the original files through https://search.abb.com/library/Download.aspx?DocumentID=9AKK108469A7961&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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