Shelly Plus 1 Water Protected Case for Wall Mount

The Shelly Plus 1 is a great Wi-Fi operated relay switch. It can be used to easily switch appliances such as a domestic boiler. However, for such scenarios you probably want to use a case – and ideally one with some splash proof protection – to avoid issues during routine boiler maintenance.

This model requires some extra hardware:

• your choice of wall affixing with a head diameter between 4mm – 5.8mm. The screw thread diameter cannot be more than 3.6mm. The spacing between the screws is exactly 42mm;
• 4 heat-set inserts of size M3 x 5.7mm (depth) x 4.6mm (diameter);
• 4 M3 screws countersunk screws  with a length of around 6mm (somewhat longer or shorter works too).

This case is designed for wall mounting next to an appliance such as a boiler. It closes tightly using the M3 screws. The wiring exits the box at the bottom to ensure that any dripping water follows the wires downwards. The case itself has a groove into which the lid slides to further prevent potential damage from water splashes to get into the compartment where the Shelly Plus 1 is placed. None of these measures make the box truly waterproof. They do help to reduce the potential for water ingress.

Depending on your wiring the opening at the bottom will need to be bigger. The sliced design to show print times uses the smallest 6mm opening. Models are also uploaded for 8mm, 10mm, and 12mm bottom openings so pick the one that works best for your cable bundle thickness. Pick the fit that tightly holds your cables to further prevent any chance of water ingress.