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Industrial round plugs (16 A/32 A)

Discussion in 'Electrics UK' started by username132, 22 Mar 2018.

  1. username132

    username132

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    Regarding those big industrial round plugs, are 16 A plugs/outlets the same size as 32 A plugs/outlets (i.e. would it be possible to plug a 32 A machine into a 16 A socket or are they incompatible)?
     
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  3. crystal ball

    crystal ball

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    No, they are incompatible although I have seen home made converters
     
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  4. mattylad

    mattylad

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    Different size, ISTR the 32A ones are larger than the 16A ones.
     
  5. crystal ball

    crystal ball

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    Also there are same ampage but different keyed plugs/sockets for special applications
     
  6. plugwash

    plugwash

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    Each current rating is a different size. So if you need to interconnect different sizes you will need to make or an adapter.

    Clearly when doing so you should consider whether the supply is adequate and whether overcurrent protection should be provided as part of your adapter.
     
  7. ban-all-sheds

    ban-all-sheds

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    That's the whole point.
     
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  8. ban-all-sheds

    ban-all-sheds

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  9. flameport

    flameport

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    Examples of each:

    16_32_blue.jpg
     
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  11. davelx

    davelx

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    Mustn't leave out big brother!

    IMG_0068.JPG
     
    Last edited: 23 Mar 2018
  12. Simon35

    Simon35

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    Off-topic.....Currently working on a project with 3 phase + N + E blue c-form connectors.....didn't even know they existed prior to starting the project.

    The project is in Japan, where mains supply is 200V three phase, either 50 or 60Hz depending on location.
     
  13. JohnW2

    JohnW2

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    I suppose there is little/no need in UK/Europe - which I imagine is why all the 4-pin and 5-pin ones I've seen are red.
    Do you mean 200V phase-phase - i.e. about 115V phase-neutral?

    Kind Regards, John
     
  14. winston1

    winston1

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    I wondered about that. Domestic mains voltage in Japan is 100v. So I would expect 3 phase to be 173v phase to phase.
     
  15. Iggifer

    Iggifer

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    Mennekes make (and sell in the UK) ALL the plugs and sockets you could ever want. There's a 5-pin blue, 5-pin yellow etc, even do a few 3 pin red.

    Having said that, they quite clearly categorise the blue 5 pin as being for 230v. I have seen one red 7-pin and one blue 5-pin in use. They were essentially being used to pull in a contactor when the plug was inserted and drop the contactor out on removal. I guess as an extra safety step and also to limit what could be plugged into the outlets.
     
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  16. crystal ball

    crystal ball

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    Recently saw 5 pin cream/beige used for temporary fire alarms
     
  17. plugwash

    plugwash

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    At least from wikipedia there seems to be a bit of a gap in the standard for the 5 pin plugs. The yellow is for "57–75/100–130 V" and the blue is for "120–144/208–250 V AC", so there doesn't seem to be any correct plug for 100/173 .
     
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