if 87a not used, SPST ok?

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blingo

Member - Posts: 30

Joined: August 07, 2004

Location: United States

Posted: August 18, 2004 at 11:35 PM / IP Logged

when places show how to wire up a relay to do a certain thing, and they say 87A - not in use, does this mean i can get away with using a spst? or do i still have to use a spdt, just not use the 87A pin? thanks

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HotRod53F100

Copper - Posts: 84

Joined: May 12, 2002

Location: United States

Posted: August 24, 2004 at 6:34 PM / IP Logged

If you are only using 2 coil wires and 2 other wires being controlled, there is no reason to use a SPDT, a SPST will work just fine. Just be sure that you have the amperage rating and wire away!

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hotwaterwizard

Silver - Posts: 1,350

Joined: December 11, 2003

Location: California, United States

Posted: September 04, 2004 at 2:23 PM / IP Logged

I think there is a little confusion going on here. 87a is used on a SPDT Relay ASPST Relay only has 1 Pole or Switch. if 87a not used, SPST ok? -- posted image.

John DeRosa (Hotwaterwizard)

Stockton California

When in doubt, try it out !

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if 87a not used, SPST ok?

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