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Molex connector for high voltage?

Discussion in 'Electronic Basics' started by Harry Muscle, May 26, 2004.

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  1. Harry Muscle

    Harry Muscle Guest

    Is it possible to use a standard computer molex connector for high voltage
    connections? I need to find some kind of small and practical way to connect
    11 wires to a circuit board. Four of the wires will be around 140V, with
    occasional spikes to 600V. Most of the rest will carry standard 120VAC.
    None will go higher than 1 amp. Obviously this connection will be inside an
    enclosure.

    Is what I'm thinking of doing, safe? My biggest concern is possible arcing
    of the 600V across two wires of the molex connector? Btw, how far do two
    bare wires have to be for 600V not to arc across?

    Thanks,
    Harry

    P.S. I'm also interested in knowing of any other types of connectors that
    are small, easily obtainable and suitable for my needs. Thanks again.
     
  2. Rich Grise

    Rich Grise Guest

    Actually, in the circles where I run, these aren't even considered
    "high voltage." I think that starts at about 1000.

    The air gap to make 600V arc is so small as to be almost touching,
    i.e. you're more likely to have a short than an arc. If you're talking
    Molex like the size of disk drive power connectors, then no problem.
    I wouldn't recommend using .1 headers, or anything very small, however.

    Cheers!
    Rich
     
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