Posted 31 October 2023

Double socket with USB to have Double pole

I`m after a double socket with usb, but I want it to be on double pole, not single pole, as I understood it`s better. The thing is that the description in general for sockets doesn`t states if it`s sigle or double pole...So how can I make sure the socket is double pole ?
amazon.co.uk/Ele…RY?

amazon.co.uk/BG-…J1?




- I will have 2 other leads connected to the socket and many devices connected to the leads such as tv, wifi router + 4-5 other small devices. So double pole would be better

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  1. aLV426's avatar
    That description is wrong - double pole simply refers to the fact that both live & neutral lines are switched, making it safer - it has nothing to do with loading.
    I doubt you will find any BS 1363 approved sockets that have DP switches (due to cost - they do exist though). Also note that most if not all combo USB sockets don't actually switch the USB sockets off, only the mains outlet. For this reason I personally refuse to fit them, instead using "wall warts" which can be easily swapped out when faulty or simply unplugged when not in use. Granted the "phantom" power draw is negligible, however for me there is no "piece of mind" when it comes to powering off USB charger sockets.
    AndyRoyd's avatar
    It would be disappointing if the previously mentioned SFx Essentials 2-Gang DP Switched Socket (with twin USB) has been colourfully-described based on counting one pole for each of the two switches,
    especially as the title & spec listing separately identifies "2 gang" to reduce the chances of confused descriptors.
  2. tintin7's avatar
    Why would double-pole be better - it sounds as if both sockets will be switched on all of the time (router, TV etc) anyway so single-pole or double-pole won't make any difference.......Double-pole are designed for isolating both the live and neutral supply when whatever is connected is switched off but it doesn't sound like the switches will be used much....

    Most of these sockets USB chargers seem to fail fairly quickly anyway so what is the point ?
  4. UEFI's avatar
    agreed wouldnt have any of these in my place.
  5. TheUrbis's avatar
    As above, why do you need double pole? Most sockets are only single pole.
  6. danflorin3's avatar
    Author


    I was just reading here and there that double pole ones are better for heavy load...It won't be heavy load anyway, but just in case...if it's better, why not?



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    TheUrbis's avatar
    It's nothing to worry about... all of your existing sockets will be single pole!
  7. AndyRoyd's avatar
    DP provides isolation benefits but that will not be realised for items that are typically left permanently powered-on, such as OPs router application.
    Might be more beneficial to see how the USB supply is switched, or likely: not switched.

    SF has DP twin mains skt with twin-USB (max 2.1A) for under £12
    screwfix.com/p/1…72j
  8. melted's avatar
    Double pole switches are preferable for sockets used for high current appliances and ones with electric elements, such as some kitchen appliances. I wouldn't consider it worthwhile changing to DP for the usage you mention.
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