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A/C-D/C adaptor
Posted: Wed Jun 10, 2020 11:17 am
by brian1951
Do the above have some sort of cut out inside ?
Re: A/C-D/C adaptor
Posted: Wed Jun 10, 2020 1:00 pm
by Stese
i think it would depend on what make/model you are looking at.
Re: A/C-D/C adaptor
Posted: Wed Jun 10, 2020 1:37 pm
by Tricky Dicky
I would expect the minimum would be a thermal reset, these can cutout fast but can take a while to reset. Putting the adaptor in the fridge for a while can speed it up. However you need to look at what caused the excess heat to tigger the reset, if it was because you were running too many devices off it then simply reducing the current draw will remedy that. If however, the adaptor seems to warm up for no reason them there is an internal fault and it is best to mend it with a new one.
Richard
Re: A/C-D/C adaptor
Posted: Wed Jun 10, 2020 4:50 pm
by brian1951
Thank you Richard, i think may have be caused by running to many locos at one time.
Re: A/C-D/C adaptor
Posted: Wed Jun 10, 2020 6:54 pm
by brian1951
It was only 500ma, maybe i should up it to 1.5 or 2a
Re: A/C-D/C adaptor
Posted: Thu Jun 11, 2020 11:36 am
by brian1951
12VA is what in amps.
Re: A/C-D/C adaptor
Posted: Thu Jun 11, 2020 12:03 pm
by Brian
Depends on what the rated output volts are?
e.g. 12 volts at 12va is 1.0Amp
24 volts at 12va is 0.5Amp (500 milliamp)
Re: A/C-D/C adaptor
Posted: Thu Jun 11, 2020 12:05 pm
by brian1951
It 14v and 12VA
Re: A/C-D/C adaptor
Posted: Thu Jun 11, 2020 12:07 pm
by Brian
brian1951 wrote: ↑Thu Jun 11, 2020 12:05 pm
It 14v and 12VA
0.857 Amp so less than 1.0 Amp
Divide VA into rated volts = 12/14 =0.8571428 Amp
Re: A/C-D/C adaptor
Posted: Thu Jun 11, 2020 12:10 pm
by brian1951
Ok Brian thanks, what is the max amp i should use with 14 volts. Having used a 500ma for years, i find running more than one Black label is blowing the power supply.