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What are “Dry Contacts”?

Dave from Electrical Engineering has a short and sweet answer:

http://en.allexperts.com/q/Electrical-Engineering-1356/Meanings-Dry-Contact.htm”>Dave from Electrical Engineering:

A dry contact is a set of 2 switch contacts, like a set of contacts from a relay or from a toggle switch, etc, that has both terminals available and neither contact is connected to power or anything else. (“Dry” = no “juice”) The contacts may be NO, normally open (also called form A), or NC, normally closed (also called form B). Form C would be a SPDT (single pole double throw) with 3 connections.

So, you can hook up the contacts to anything you want, not worrying if they are already connected to power or any other circuit.

Hope this helps!

Dave

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What are “Dry Contacts”?

Dave from Electrical Engineering has a short and sweet answer:

http://en.allexperts.com/q/Electrical-Engineering-1356/Meanings-Dry-Contact.htm”>Dave from Electrical Engineering:

A dry contact is a set of 2 switch contacts, like a set of contacts from a relay or from a toggle switch, etc, that has both terminals available and neither contact is connected to power or anything else. (“Dry” = no “juice”) The contacts may be NO, normally open (also called form A), or NC, normally closed (also called form B). Form C would be a SPDT (single pole double throw) with 3 connections.

So, you can hook up the contacts to anything you want, not worrying if they are already connected to power or any other circuit.

Hope this helps!

Dave

This entry was posted on Sunday, June 26th, 2011 at 1:39 pm and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a comment. Pinging is currently not allowed.

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