SELV Switches

I want to be able to use proper switches in the bathroom - hate pull switches - and came up with this SELV switching unit prototype. Pics and specs below.

All comments appreciated.

Specs

• 4 independent circuits
  
• 12v DC control
  
• 240v AC switching
  
• Disconnect for main circuit testing
  

Components

• Fibox enclosure with clear lid
  
• DIN rail, cut to size
  
• Click CT100 junction connector for manual disconnect
  
• TDK Lambda DIN mount 12v DC power supply
  
• Finder SPDT 12v DC relays
  
• Finder DIN mount relay socket
  

cheers, Paul

be easier putting a normal switch in the bathroom with the standard wiring, locations allowing

Agreed, but "locations allowing" is always the catch. I would have preferred an IP44 switch which didn't look like it belonged in the garage, but they seem to be rarer than hen's teeth.

cheers, Paul

I'm looking at these at the mo for my bathroom:

http://www.taptilecontrols.com/

Also these:

http://www.sensor.co.uk/switches/bathroom_switch/

One worry with the first is having foil covered PIR insulation (Celotex) on all the walls and ceiling.....

I like it, but I'm probably the wrong target as I make boxes like this all the time for various projects (Omron MY2 relays for me though ). I'd use DIN rail terminals though, and flax for the supply rather than T&E if I was making it as a product.

For the most part though, I just stick the switches outside the bathroom, or in the bathroom clear of the relevant zones.

I picked the Finder relays because I can get sockets with switching on one side and coil on the other - I like physical separation.

DIN rail terminals would be the go except I can't get the separation in the box. I'd need to use a much bigger box with multiple rails and that is starting to get out of hand.

I've since found a smaller SPDT socket (Finder 95.63SMA) that is much neater, but I have to use a 40.31 series relay to match. Maybe V2.

cheers, Paul

Onoff said:

I'm looking at these at the mo for my bathroom:

http://www.taptilecontrols.com/

Click to expand...

I like the idea but you need space and that is my current issue. For a wet room they'd be great.

cheers, Paul

We've fitted quite a few of those Sensorswitches ...always on the back of a tile in the usual light switch position at the door .   Wipe hand across the tile and the light comes on ..  Relay box in the ceiling or loft.

i can just imagine visitors spending ages looking for the light switch.... :^O