where can I get silent relays

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bbody

Member - Posts: 12

Joined: June 15, 2005

Location: United States

Posted: January 04, 2007 at 11:55 PM / IP Logged

they need to handle about 3-4 amps each and a very fast coil

they need to be silent these (8 of them) will be turning on and off very fast for hours at a time which is why I need to find some that make no noise

I would guess that there is a electic version but I don't know where to get it

Thanks

Installer

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eleterequest

Member - Posts: 19

Joined: November 17, 2006

Location: Canada

Posted: January 05, 2007 at 12:28 AM / IP Logged

You might have luck using a Triac.

[url]http://www.americanmicrosemi.com/tutorials/triac.htm[/url]

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KPierson

Platinum - Posts: 3,527

This member consistently provides reliable information

Joined: April 14, 2005

Location: Ohio, United States

Posted: January 05, 2007 at 1:13 PM / IP Logged

You'll need to go with solid state relays. They switch much quicker the electromagnetic relays, are silent, and don't wear out.

Do a search on www.digikey.com for solid state relay

You didn't give much information (coil voltage, load voltage) so it's hard to tell you much more.

Kevin Pierson

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hotwaterwizard

Silver - Posts: 1,350

Joined: December 11, 2003

Location: California, United States

Posted: January 05, 2007 at 11:31 PM / IP Logged

where can I get silent relays -- posted image.

John DeRosa (Hotwaterwizard)

Stockton California

When in doubt, try it out !

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bbody

Member - Posts: 12

Joined: June 15, 2005

Location: United States

Posted: January 12, 2007 at 12:41 AM / IP Logged

I do not know that much about relays

I just need a basic solid state relay

they need to handle at least

4amps or more output

12-14 volts input and output

less than a or about 1/2 amp to trigger it

4 pin-SPST I need 8 of these right away

and 5 pin-SPDT I will need these in the future

Installer

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where can I get silent relays

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