Power Adaptors

[martinjr]

I have just purchased a device from th US but, although I asked the clearly to ensure they supply a European (220V) adaptor I discovered that they sent me a FRANMAR Class 2 transformer - Model RH4, input 120V/Output 7.5V I queried this with them and they stated that this will work as they have supplied people all over Europe with this and have never received a complaint until now. I'm not sure I should use this. I know I can probably buy a suitable on e for a few quid but that is not the point. Anyone got definite info, pl?

[qapmoc]

If you plug this transformer into 230vac as per the UK it will get very hot and then after a couple of minutes it WILL burn out. I should think you also might damage the input regulator in the equipment connected to it as it will be getting 15.0vac instaed of 7.5vac.

[rich1982]

What does the readings on the back plate of the transformer say, Tell me everything volts/current/output/input/hz/ip

[martinjr]

Since I posted my query on power adapter I also requested th US company to confirm that it will work here in view of quapmoc's answer. I've just got a reply simply saying 'Yes, I confirm'. I'm even more worried now. Also, the adaptor only came with the usual two narrow US pins rather than 2/3 pin that we use so I'll have to find a plastic gadget to fit over these so it will plug in to elec socket.

To rich1882, the readings on the plate show the following:

Franmar (manufacturer)

Class 2 Transformer - Model RH41-0750500DU

Input 120v AC60Hz

Output 7.5v DC500mA

Thanks Again.

[qapmoc]

Hi, I still am sure that you cannot use this trafo on 230vac, the fact that it states 110vac 60Hz means that
1. The voltage is twice the designed input of the trafo.
2. The fact that the design frequency is 60Hz and you will use it on 50Hz means that the current will be even higher than normal even if it was connected to 110vac.

I would buy a local replacement and use that and then just for the sake of it test the 110vac trafo to see what happens. I would plug the 110vac trafo in to a socket and then stand by ready to turn it off when/if it does burn out. If I did this then I would use an old socket somewhere like in my shed because a nice white one in my kitchen would look bad with a black carbon mark on the facia.