spdt relay to trigger a power drill

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=116554
Printed Date: May 15, 2025 at 11:50 AM

Topic: spdt relay to trigger a power drill

Posted By: tgnman
Subject: spdt relay to trigger a power drill
Date Posted: September 26, 2009 at 2:41 PM

Hello

Thank you all for a great site. Lots of information here. But I have a special need.

I am working on a haunted house prop that uses a motion sensor to trigger a 6 volt motor which is a vibrating box. I need the prop to have a little more juice. I hope to use a SPDT relay or two to trigger this power drill I have.

The motion sensor puts out 6-7vlts and I would like to either make a closed circuit with a power strip plug or if I have to I can go into the drill motor direct.

My first question is does anyone have any ideas? My second is can I break connection to a ground wire on a 120vlt plug and not burn the relay up? I never learned AC so I am stuck here...???

Please let me know if anyone has any ideas or links to diagrams what may help me.

Thanks in advance.
Mark

Replies:

Posted By: tgnman
Date Posted: September 26, 2009 at 4:23 PM

So I got this working by interuption the motor wires. Depending on speed the volts go up to 30+. Will this standard 12vlt relay hold up to short 15 second bursts of 30+ volts?

Thanks again
Mark

Posted By: i am an idiot
Date Posted: September 26, 2009 at 6:46 PM

As long as you do not pull more than 40 amps of current through the relay, you will be fine.

Posted By: tgnman
Date Posted: September 27, 2009 at 3:18 PM

i am an idiot wrote:

As long as you do not pull more than 40 amps of current through the relay, you will be fine.

Ok cool. Thank you very much for the reply.

Mark

Posted By: hotwaterwizard
Date Posted: October 10, 2009 at 2:08 PM

a 24 volt relay would just fine

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John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !