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Connectors for 200V dc

davidwalker2
I have an installation that uses 200V dc (balanced about earth but not earthed). All the installed equipment is direct wired, but I have an application that needs a plug and socket.  I don't want to use the standard connectors that are also used for ac to avoid ac equipment being plugged in inadvertently.  The equipment in question will draw a current around 8 amps and is metal framed, not double insulated so needs an earth.  I would be grateful for any suggestions/ advice.


I am sure that this has been discussed previously, but I cannot find it on the old forum.


Many thanks,


David
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  • 0
    It was not a guess - we have had a thread on the old forum about the 'soft start' of the transformers for the rectifiers on the old forum, and another about the use of perspex shields to limit the approach of visitors to a potential source of UV.

    If this connector is in a cage, and is only unplugged when the power is off, then you may as well treat it as if it is inside a piece of equipmetn, and  life gets a lot easier

     go for buccaneers...


    rated for up to 277V AC or DC and about 10A for the 3 pin version.

    https://uk.farnell.com/bulgin/px0731-p/circular-connector-plug-3-way/dp/314195

    https://uk.farnell.com/bulgin/px0765-s/socket-low-profile-3-pole/dp/978012?MER=sy-me-pd-mi-acce


      do be aware there are plug and socket versions of the reverse sense as well, so you could also have pins on the box, holes on the end of the cable - versions with more or less pins exist too, we have used the 4 pole ones on equipment instead of an IEC inlet, with a 4 core  power lead, when we wanted to not liven up until after a pilot to  earth loopback was complete.

    In any case, all connectors in that series are rated for DC, so long as non-breaking under load, and are definitely not going to be confused with anything else.



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  • 0
    It was not a guess - we have had a thread on the old forum about the 'soft start' of the transformers for the rectifiers on the old forum, and another about the use of perspex shields to limit the approach of visitors to a potential source of UV.

    If this connector is in a cage, and is only unplugged when the power is off, then you may as well treat it as if it is inside a piece of equipmetn, and  life gets a lot easier

     go for buccaneers...


    rated for up to 277V AC or DC and about 10A for the 3 pin version.

    https://uk.farnell.com/bulgin/px0731-p/circular-connector-plug-3-way/dp/314195

    https://uk.farnell.com/bulgin/px0765-s/socket-low-profile-3-pole/dp/978012?MER=sy-me-pd-mi-acce


      do be aware there are plug and socket versions of the reverse sense as well, so you could also have pins on the box, holes on the end of the cable - versions with more or less pins exist too, we have used the 4 pole ones on equipment instead of an IEC inlet, with a 4 core  power lead, when we wanted to not liven up until after a pilot to  earth loopback was complete.

    In any case, all connectors in that series are rated for DC, so long as non-breaking under load, and are definitely not going to be confused with anything else.



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