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Discuss Anyone know what these 3 pin sockets are? in the Looking for Domestic Electricians? area at ElectrciansForums.co.uk.

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  1. Felicity
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    Felicity EF Member

    Hello all
    We have moved into a 1960s house, grade 2 listed. electrical wiring modernised by previous owners. These 3 pin sockets still wired in (pic attached): they are NOT the standard 5amp as the top pin is much smaller than the bottom pin. My electrician has no idea what they are for. We would really like to use them for lighting, as per architect original plans (but does not say what type of fitting). Any info most welcome - has someone seen before and know if we can use/rewire? I have internet searched myself to distraction and even looked at online library of plugs and sockets.....! Thanks, Felicity

    IMG_7894.JPG
     
  2. westward10
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    westward10 In echoed steps I walk across an empty dream. Electrician's Arms

    Location:
    Northamptonshire
    I don't think the top pin is smaller it is just that the lower two are shrouded. Does a 5A plug fit it.
     
  3. Felicity
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    Felicity EF Member

    thanks for taking the time to reply. no a 5amp plug doesnt fit: the space between the upper and lower pin is much narrower than a modern 5amp
     
  4. westward10
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    westward10 In echoed steps I walk across an empty dream. Electrician's Arms

    Location:
    Northamptonshire
    They maybe a 2A as you can see from my pic they are tiny. 20171113_141434.jpg
     
  5. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    Seem to recall 2amp sockets?

    Dooh :oops:
     
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  6. HandySparks
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    HandySparks Trusted Advisor

    Location:
    Hampshire
    Business Name:
    Neish Electrical Services
    A picture of the rear of the connector/connectors would be helpful. If they're powered up, you might need your electrician to help with this.

    Edit: agree, they might be 2A connectors.
     
  7. Felicity
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    Felicity EF Member

    they are wired to the wall and scared of electrocuting myself so will need an electrician to take a look. the 2amp looks more like it..
     
  8. ruston
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    ruston Trusted Advisor

    Location:
    Northumberland
    Is that box a fixture or free standing , does it look like it had a specific purpose - like a transformer of some sort
     
  9. marconi
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    marconi Regular EF Member

    To me it has the look of an old Bulgin socket for a Bulgin 2.5A plug.

    If you contact Bulgin:

    Circular Power Connectors - Standard Series | Bulgin - http://www.bulgin.com/products/circular-power-connectors/standard.html

    using their email contact form they may be able to help. I cannot find a telephone number for you to try. Their HQ is in Cambridge so you could try directory enquiries for a number.

    Here are some images of what may be the right plug:

    1 x Bulgin 3 Pole Free Plug + Chassis Socket 250v AC 2.5Amp | eBay - https://www.ebay.co.uk/itm/1-x-Bulgin-3-Pole-Free-Plug-Chassis-Socket-250v-AC-2-5Amp-/391866779046

    or an older version of this plug without the shrouds:

    3 POLE MINIATURE PLUG - BULGIN | CPC - http://cpc.farnell.com/bulgin/sa2403/3-pole-miniature-plug/dp/CN04059?CMP=KNC-GUK-CPC-GEN-SHOPPING-BULGIN-CN04059&gross_price=true&mckv=sh0fqHkmO_dc|pcrid|72935748377|kword||match||plid||pid|CN04059|&gclid=EAIaIQobChMIlobniuK71wIVSp4bCh0hWAe2EAQYAyABEgKXE_D_BwE

    DO NOT USE THESE OUTLETS UNTIL YOU HAVE HAD THEM CHECKED AND TESTED BY AN ELECTRICIAN
     
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  10. Felicity
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    Felicity EF Member

     
  11. Felicity
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    Felicity EF Member

    thank you so much, that is very helpful
     
  12. Pete999
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    Pete999 Trusted Advisor

    Top Poster Of Month

    Location:
    Northampton
    That if my faculties are still intact, looks like a DIY attempt at a 15A socket
     
  13. marconi
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    marconi Regular EF Member

  14. HandySparks
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    HandySparks Trusted Advisor

    Location:
    Hampshire
    Business Name:
    Neish Electrical Services
    If you read the thread, the holes are too close together for a 5A plug, let alone a 15A one.
     
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  15. HandySparks
    Online

    HandySparks Trusted Advisor

    Location:
    Hampshire
    Business Name:
    Neish Electrical Services
    Ultimately, if the wiring is OK, you could just get the plates modified (or new plates) to accept whatever socket is required.
     
  16. westward10
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    westward10 In echoed steps I walk across an empty dream. Electrician's Arms

    Location:
    Northamptonshire
    I would like to see in the enclosure as it looks big for the size of socket. As #8 says maybe a transformer.
     
  17. Murdoch
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    Murdoch Electrician's Arms

    Location:
    Woking
    Out of interest why didn't your spark take the cover off and look inside?
     
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  18. Wilko
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    Wilko Electrician's Arms

    Location:
    Berkshire
    Business Name:
    Wilko Electrics
    I'm going to punt on a 110V transformer ...
     
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  19. Strima
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    Strima Electrician's Arms

    Location:
    St Neots
    I've seen similar when I used to work in servicing bays for lead lamps.
     
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  20. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    I installed those bulgin things a millennium ago Marconi. Seem to recall the earth male pin had some locating part?
     
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