It is particularly important to follow wall box depth guidance for dimmer switches so that the products are able to operate within the correct temperature range.
- Dimmers on single plates fit wall boxes with 60.3mm fixing centres; double plates need 120.6mm.
- A wall box with four fixing lugs needs its top and bottom lugs broken off or bent flat.
- A V-Pro Micro in-line dimmer in the wall box needs enough space, with no wires trapped.
| Product | Classic ranges | Ultraflat ranges | Dimension Screwless range |
|---|---|---|---|
| Dimmers | 25mm | 35mm | 35mm |
| 10A rocker/toggle switches | 16mm | 25mm | 25mm |
| 13A sockets | 25mm | 35mm | 35mm |
| 5A sockets | 25mm | 35mm | 35mm |
| Fused spurs | 25mm | 35mm | 35mm |
| Cooker panel | 35mm | 35mm | 35mm |
| Shaver socket | 47mm | 47mm | 47mm |
PowerGrid range
| Product | Recommended minimum wall box depth |
|---|---|
| Dimmers (excluding V-Pro Multi-Point) | 35mm |
| All rockers and fuses | 25mm |
| V-Pro Multi-Point dimmers, Classic faceplate | 25mm |
| V-Pro Multi-Point dimmers, Screwless faceplate | 35mm |
European and VariGrid ranges
| Product | Recommended minimum wall box depth |
|---|---|
| Switches, sockets and dimmers | Standard European 40mm round or square box |
Fix with the screws or the claws supplied (VEU001).