Which file should I choose?
Use 9AKK108471A4757.dxf (revision A) to insert the supplied editable drawing into your layout. The ZIP contains the unmodified 9AKK108471A4757.dxf.

ABB 1SEP408149R0001 CT-ZLBM00-160/5-1-BB: original DXF for substation insulation or transformer equipment layouts. 1SEP408149R0001_CT-ZLBM00-160/5-1-BB_2d_drawing, Accessories InLine II, Inline II.
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 9AKK108471A4757.dxf (revision A) to insert the supplied editable drawing into your layout. The ZIP contains the unmodified 9AKK108471A4757.dxf.
1 inspected original for ABB 1SEP408149R0001 CT-ZLBM00-160/5-1-BB: 9AKK108471A4757.dxf (DXF). The manufacturer describes this configuration as 1SEP408149R0001_CT-ZLBM00-160/5-1-BB_2d_drawing, Accessories InLine II, Inline II.
DXF · 829 KB · Rev A
Download filename: 9AKK108471A4757.dxf
Original manufacturer DXF geometry
1 inspected original for ABB 1SEP408149R0001 CT-ZLBM00-160/5-1-BB: 9AKK108471A4757.dxf (DXF). The manufacturer describes this configuration as 1SEP408149R0001_CT-ZLBM00-160/5-1-BB_2d_drawing, Accessories InLine II, Inline II.
ABB supplied the original files through https://search.abb.com/library/Download.aspx?DocumentID=9AKK108471A4756&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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