explaination for numbers on a 12v relay

Discussion in 'GM Electrical Tech' started by kawasaki_kid, Feb 4, 2011.

  1. kawasaki_kid

    kawasaki_kid Rockstar 100 Posts

    I am curious if anyone knows where the numbers they use on most relays came from(30, 87, 87a)? I know what they do, just curious why they are the way they are.
  2. troutbug

    troutbug Rockstar 100 Posts

    Last edited: Feb 5, 2011
  3. stephan

    stephan Rockstar 4 Years 5000 Posts

    That's a great link Sal, thank you for posting it. I copied & pasted it into an email that I'm sending to everybody that calls and asks what's this # or that # mean. My list got so dirty it was unreadable & I finally threw it away, & my memory was only good for less than 20% of the total on the list lol :)

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