Relay help...

PLC_love

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• Jan 26, 2006

• #1

Hi, is there a relay that would allow me to have 2 separate "control" signals to energize the coils and 2 separate sets of NO & NC? e.g. one "control" signal to energize the first set of NO & NC, and a second "control" signal to energize the second set of NO & NC..Thanks for your help.

 

CaseyK

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In the cornfields, on the prarie, outside Chi-Town

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• Jan 26, 2006

• #2

I may be confused.....

But this sounds like two seperate relays to me.

Do they need to be mechanically or electrically interlocked?

I have seen dual coil relays for isolating two seperate inputs, as in OR logic.

 

PLC_love

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• Jan 26, 2006

• #3

I want to find one single relay to do that...is there such relay?

 

rdrast

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Apr 2003

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South Carolina Lowcountry

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• Jan 26, 2006

• #4

Why a single one?

Use Two Relays.

Or, mount two sockets on a piece of din-rail, plug in two relays, bring out the wires, and pot the whole mess in epoxy.

 

djbillyd007

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Mar 2005

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Sevierville TN

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• Jan 26, 2006

• #5

Relay

not sure why this is needed but i think this is what you are talking about. i just typed dual coil relay in the search engine. http://www.iprocessmart.com/electrical/idec_gp_latch_relays.htm



OK, maybe not what you are looking for after reading I see this is just a latching relay OOPS

 

Last edited: Jan 26, 2006

rsdoran

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Apr 2002

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Birmingham, AL

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• Jan 26, 2006

• #6

There are several dual or multiple relays available, the automotive industry has used them for years in motor reversal applications...ie windows, door locks, windshield washer etc;
http://oeiwcsnts1.omron.com/pdfcatal.nsf/0/31B332A040D3C71286256FC7005DD675/$file/D20G8QNG8QW0305.pdf