M28 Panel Mount Switch
thingiverse
This adapter mounts a standard 12V LED switch into a 28mm-30mm panel cutout. These switches are widely used on 12V panels and can be purchased separately. See accompanying images for further details. The provided washer prevents the assembly from rotating when installed in a 19-inch 1U blank. Although it's not necessary, you might consider adapting it for similar applications. A different panel insert using this same washer is shown in an attached image. This adapter is derived from my M28 Panel Blank design.
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