4 Channel Optocoupler mount
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With this mount you can fasten a 817 4 channel optocoupler module either with screws to a panel or onto a DIN rail.
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Updated at source:
Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution
This bracket has not been evaluated for electrical safety. Optocoupler modules are available in variants rated for different voltages, some of which may involve mains or higher AC/DC voltages.
This part is usable and have been designed ONLY for hobby-electronics applications.
Print this bracket only in a genuinely flame-retardant filament (look for filament specifically rated UL94 V-0 — many filaments marketed as "flame retardant" are not V-0 rated).
Verify appropriate clearance and creepage distances for your voltage and local electrical code before use; this design was not engineered with those specs in mind.
Do not use this bracket as a substitute for proper enclosure, insulation, or electrical safety practices required for your installation.
You are solely responsible for verifying this part is safe and suitable for your specific module, voltage, and installation. This model is provided with no warranty, and I accept no liability for damage, injury, or death resulting from use, misuse, or improper installation of this part.
Now, that we are behind the scary legal disclaimer, If you wish to attach this to a DIN rail the model has been designed with this bracket in mind :
YOU NEED THE 52,5mm VERSION!
Required parts :
2x M3 heat inserts (4x if you also print the DIN rail bracket)
4x M3 bolts (preferably hex socket heads aka DIN 912), make sure the bolt outer head diameter does not exceed 5,5mm because the module's screw terminals are too close to the mounting holes.
Assembly :
Install the two heat set inserts into the two 4mm holes of the printed model (the two diagonal ones where the module sits on)
Screw on the module with and the din rail bracket.
Printing tips :
Recommended to use a high wall count (I used 6 with a 0,4mm nozzle) to make sure the heat inserts have enough material around them and the screw head don't bottom out on infill that can cause structural weakness and the material being squeezed too much.