Bathroom downlighters

[yansdiy]

Hi all,

I have seven 12v downlighters in my bathroom of which 4 no longer work. I have 240v into the transformers but nothing out to the bulbs. I bought a replacement transformer to try out on one of the lights but when I wired it up, (cant really go wrong brown to brown - blue to blue), I managed to trip the CB. Question is do I need a like for like transformer ?
I have searched the internet for a match but can not find exactly the same one. Current Model - HSE60T (20-60va). This is dimmable although I have not got a dimmer switch. The new transformer is not dimmable, does this matter ? New Model - HQC - 60 (20 - 60w)
Any help would be greatly appreciated.

Yan

 

[sparkybird]

was it the circuit breaker you tripped or the RCD?

If the latter this might just be because you accidentally touched neutral and earth together - even if the circuit if off this will happen and not anything to worry about.

If it wasn't the RCD - did you get a shock? Was the circuit switched off? You really need to make sure it is off at the fuse board not just the light switch. As long as you are replacing a 12V 60W (or VA) transformer with the same spec then the make won't matter

Did the light work???

 

[yansdiy]

It was the CB that tripped not the RCD. I always trip the circuit before any work. It was all OK when I switched the CB back on after wiring it all up and only tripped when I switched the light on. Did not even get a glimmer of light from the bulb before it tripped.