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Wire gauge size for RTD Probes?

 
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Troubs




Joined: 23 Feb 2011
Posts: 39



PostLink    Posted: Mon Mar 14, 2011 6:54 pm    Post subject: Wire gauge size for RTD Probes? Reply with quote


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I have to lengthen the the wire for the RTD probes to reach my panel. Anyone know off the top of their head what size wire they use?
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milldoggy




Joined: 23 Dec 2010
Posts: 569
Location: Pottstown, PA


PostLink    Posted: Mon Mar 14, 2011 7:04 pm    Post subject: Reply with quote

II would guess around 20-22 gauge, just get 18-20 to be safe.
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crush




Joined: 28 Dec 2010
Posts: 706
Location: Telemark, Norway


PostLink    Posted: Mon Mar 14, 2011 10:23 pm    Post subject: Reply with quote

just a thought, maybe you could use an XLR extender?

I did something similar with my pumps. The 230v march 809s come only with 3ft of cable. I'm using IEC connectors, and rather than try to extend the cable, I put a IEC connector on the end, and used an IEC extender.

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pola0502ds




Joined: 14 Mar 2011
Posts: 290
Location: poland, Ohio


PostLink    Posted: Wed Mar 16, 2011 5:50 pm    Post subject: Reply with quote

Can anyone confirm is the wire size spec'd is correct and if the xlr extender will work. I have to do the same thing.
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Troubs




Joined: 23 Feb 2011
Posts: 39



PostLink    Posted: Wed Mar 16, 2011 8:06 pm    Post subject: Reply with quote

IEC extended is an idea. For the the pumps I just cut up a 16/3 extension cord and used butt terminals to make the connections. Heat shrinked it to protect it. I don't see why the XLR extender wouldn't work. Seems a little pricey compared to splicing it up yourself though.
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milldoggy




Joined: 23 Dec 2010
Posts: 569
Location: Pottstown, PA


PostLink    Posted: Wed Mar 16, 2011 8:11 pm    Post subject: Reply with quote

I really doubt there is much current on those wires, so 18-22 is probably fine. Bigger is always safer.
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crush




Joined: 28 Dec 2010
Posts: 706
Location: Telemark, Norway


PostLink    Posted: Wed Mar 16, 2011 8:34 pm    Post subject: Reply with quote

The current to/from the probes is also being carried by wires inside the CP, which Kal specs as 22-24 gauge. So you could make up your own extender using 24 gauge cable (e.g. some cat 5 network cable) and the XLR male/female ends.
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