Which file should I choose?
Use MCADPD0005105_2D-front.dxf (revision 1.0) to insert the supplied editable drawing into your layout.
Use MCADPD0005105_3D-simplified.stp (revision 1.0) to place the original solid geometry in your 3D assembly.

Schneider Electric Masterpact MTZ - Vertical rear bottom connection - for Masterpact MTZ3 40-50 - 3P fixed/drawout: original DXF / STEP for circuit-breaker equipment layouts.
A circuit breaker opens and closes a power circuit and can interrupt it when its protection or trip system responds to a fault.
Use MCADPD0005105_2D-front.dxf (revision 1.0) to insert the supplied editable drawing into your layout.
Use MCADPD0005105_3D-simplified.stp (revision 1.0) to place the original solid geometry in your 3D assembly.
2 inspected originals for Schneider Electric Masterpact MTZ - Vertical rear bottom connection - for Masterpact MTZ3 40-50 - 3P fixed/drawout: MCADPD0005105_2D-front.dxf (DXF); MCADPD0005105_3D-simplified.stp (STEP).
DXF · 36 KB · Rev 1.0
Original filename: MCADPD0005105_2D-front.dxf
Original manufacturer DXF geometry
STEP · 123 KB · Rev 1.0
Original filename: MCADPD0005105_3D-simplified.stp
Original manufacturer STEP geometry
2 inspected originals for Schneider Electric Masterpact MTZ - Vertical rear bottom connection - for Masterpact MTZ3 40-50 - 3P fixed/drawout: MCADPD0005105_2D-front.dxf (DXF); MCADPD0005105_3D-simplified.stp (STEP).
Schneider Electric supplied the original files through https://www.se.com/us/en/download/document/MCADPD0005105_3D-CAD/. The source reference, revision, original bytes and checksum are retained with each download.
Original publisher: Schneider Electric. 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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