MSD 6A Killswitch, Latching Relay?

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bryaneh

Member - Posts: 13

Joined: February 15, 2013

Location: New Mexico, United States

Posted: February 03, 2023 at 7:34 PM / IP Logged

How do I wire a 30a relay to get it to latch non-ground when a momentary switch is held down? I would like it to be normally grounded because an MSD 6A box will not fire spark if the white wire is grounded. I would like to be able to hold a button down while starting and stay latched non-ground (12v) while the car is running, but reset to ground once I turn the car off. I don't want to have to remember to flip the switch to have security in place. I saw this post from 2003: https://www.the12volt.com/installbay/forum_posts.asp?tid=15762 but it didn't answer my question. I also looked over the relay section of this site, but wasn't sure which one to use. Thank you!

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geepherder

Platinum - Posts: 3,668

This member consistently provides reliable information

Joined: October 27, 2003

Posted: February 04, 2023 at 8:45 AM / IP Logged

Try this:

MSD 6A Killswitch, Latching Relay? -- posted image.

My ex once told me I have a perfect face for radio.

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bryaneh

Member - Posts: 13

Joined: February 15, 2013

Location: New Mexico, United States

Posted: February 09, 2023 at 7:15 PM / IP Logged

Thanks! I'll give it a shot.

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