ELV transformer connection

[tom0]

New to this forum - any help appreciated.

I have inherited four 12V 50W downlighters connected to 1 210VA transformer. The transformer has given up the ghost but looks reasonably new. It has 3 secondary outputs but there is only one cable feeding the 4 fittings. Do the outputs need linking out or is it OK to feed all the fittings from just one of the outputs?

Many thanks for any help.

 

[ban-all-sheds]

It has 3 secondary outputs

Check with your multimeter to to see if they are working.

 

[tom0]

Thanks for the prompt response

If they are all working - do they need linking out?

Cheers

Oops - haven't made myself clear.

If I replace the transformer with a new one incorporating multiple outputs. Do the outputs need linking out?

___________________________
Moderator
tom0 please note 10a

 

[andy]

Thanks for the prompt response

If they are all working - do they need linking out?

Cheers

Oops - haven't made myself clear.

If I replace the transformer with a new one incorporating multiple outputs. Do the outputs need linking out?

depends on the output voltages

 

[ban-all-sheds]

In the absence of instructions the safest thing to do would be to connect 1 light per output.

Internally you might have 1 power supply, with 4 sets of terminals for ease of connection, in which case it wouldn't matter if you used just 1 set, and it wouldn't matter if you linked them or not, or it might be 4 individual PSUs in a shared enclosure, in which case it would matter if you used just one of them for all the load, and connecting them together might not work. And would gain you nothing in terms of ease-of-wiring anyway.

If you find that 3 out of 4 are working, then my guess is that you've got 4 separate ones inside, and that one has failed because somebody wired all 4 lights to it, grossly overloading it.