HCW-M421 Timer back cover
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A back cover for the popular electronic timer
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Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution — Noncommercial
A back cover for the popular electronic timer, to protect against accidental short circuit on the board when setting up and experimenting with it.
Attention! This timer is not designed to control 220 V electrical appliances, only up to 30 V! Although there is an inscription on the relay body stating that the contacts can withstand 10A 250VAC, the wiring of the board is not designed for this, there are no protective gaps and cutouts.
P.S. On the new revision board, the high-voltage part is executed correctly. Check before ordering.
Print with any plastic, nozzle 0.4, layer 0.2, 2 perimeters, filling 15%.