Which file should I choose?
Use RM22UA21MR-3d.stp (revision 1.0) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified RM22UA21MR-3d.stp.

Schneider Electric Modular 1-phase overvoltage control relay, 8 A, 2 CO, 0.05…5 V AC/DC measurement, 24…240 V AC/DC: original STEP for protection or metering equipment layouts.
A relay uses an electrical input or measured condition to change its contacts or output. This lets one circuit pass a command or indication to another.
Use RM22UA21MR-3d.stp (revision 1.0) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified RM22UA21MR-3d.stp.
1 inspected original for Schneider Electric Modular 1-phase overvoltage control relay, 8 A, 2 CO, 0.05…5 V AC/DC measurement, 24…240 V AC/DC: RM22UA21MR-3d.stp (STEP).
STEP · 514 KB · Rev 1.0
Original filename: RM22UA21MR-3d.stp
Original manufacturer STEP geometry
1 inspected original for Schneider Electric Modular 1-phase overvoltage control relay, 8 A, 2 CO, 0.05…5 V AC/DC measurement, 24…240 V AC/DC: RM22UA21MR-3d.stp (STEP).
Schneider Electric supplied the original files through https://www.se.com/us/en/download/document/RM22UA21MR-3d/. 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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