Explain 12v transformers

[scottmeister71]

Providing you keep within the maximum power rating can you connect as many fittings as you like to a transformer or does it depend on how many terminals it has. I.e. can I connect a terminal block to enable me to connect more lights. It's just that a lot of transformers say "3 pairs output terminals"

 

[andy]

Providing you keep within the maximum power rating can you connect as many fittings as you like to a transformer or does it depend on how many terminals it has. I.e. can I connect a terminal block to enable me to connect more lights. It's just that a lot of transformers say "3 pairs output terminals"

providing the transformer isnt overloaded, you can connect as many lights as you want, but note that the closer to the power rating you get, the hotter the tranny will become

 

[scottmeister71]

Providing you keep within the maximum power rating can you connect as many fittings as you like to a transformer or does it depend on how many terminals it has. I.e. can I connect a terminal block to enable me to connect more lights. It's just that a lot of transformers say "3 pairs output terminals"

providing the transformer isnt overloaded, you can connect as many lights as you want, but not that the closer to the power rating you get, the hotter the tranny will become

Thanks Andrew but did you mean "not" or "note"? I'm not being funny, just checking.

 

[breezer]

think he meant to type but not that the close to the power rating you get, the hotter the tranny will become

(extra r, on the word close)

also you have to consider voltage drop, yes you can connect as many what ever you like, but if for the sake of argument, the transformer was rated at 100w, you wouldnt want to put 200 x 0.5 w lamps on a cable that is a mile long, the volt drop would be too much (unless you increased the cable size)

 

[andy]

i did mean note, not 'not'

 

[breezer]

looks better as not, not note.

 

[scottmeister71]

So if it's a transformer with 3 terminals and I have 4 lights, can I wire 2 lights into one of the terminals, providing I'm still within the overall rating?

 

[breezer]

not literally

most transformers you refer to have 2 x 3 terminals, so so long as you put 2 wires in one teminal and 2 wires in the other set of 3 yes (bearing in mind 2 lights = 4 wires)

 

[scottmeister71]

yep

Thanks for your help, as always!

Until now I've always struggled because a lot of transformers say 3 terminals and I need 4 lights, although within rating limit, so I'm a happy guy now.

 

[breezer]

you were too fast, i changed my mind

 

[scottmeister71]

you were too fast, i changed my mind

What?

 

[andy]

you were too fast, i changed my mind

What?

re-read his previous post

 

[greencoat]

I know a website for hot trannies................


Julian

 

[ban-all-sheds]

I'll stick with the PVC nurses uniforms, if that's OK with you...