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jibipaul
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Join Date: Nov 2011
Posts: 11

Relay Contact

01/12/2012 2:53 PM

please expaline about potential free contact and dry contact.

Thanks
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SolarEagle
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Join Date: Mar 2007
Location: by the beach in Florida
Posts: 33392
Good Answers: 1817
#1

Re: relay contact

01/12/2012 3:02 PM

No test questions...No homework....Learn to do your own research....If you have access to a computer, you have access to any info you need....

How to search the internet for info....

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 All living things seek to control their own destiny....this is the purpose of life
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Fredski
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Join Date: Feb 2011
Posts: 7025
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#2

Re: relay contact

01/12/2012 4:35 PM

I'll give you a hint, "Dry Contacts" don't have any ketchup on them.
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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
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#3

Re: relay contact

01/12/2012 4:42 PM

=

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67model
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Join Date: Dec 2010
Posts: 1686
Good Answers: 116
#4

Re: Relay Contact

01/13/2012 6:44 AM

Do a web search in www.wikipedia.org.

These are somewhat imprecise terms. They are used when a customer wants a pair of contacts which open or close for a signal/control state, but are completely insulated (up to say mains voltage) from any other circuit or supply potential or earth/ground.

This ensures there is no unwanted interaction between equipments.

"Potential Free" is ambiguous - some might think earthing a contact made it potential free!!

"Dry Contact" may refer to a circuit in which current or voltage are so low as to require special contacts like sealed reeds or gold/platinum contacts to get reliable low ON resistance.

67model
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