The meaning of ignition switch labels

[18Fiatsandcounting]

Maybe this has been mentioned before, but it turns out that the numbers on various electrical devices do actually have a standardized meaning. It's governed by DIN standard 72552, and the following link summarizes them:
http://www.sealtd.net/quattro/ishamrese ... inals.html
(If the link is broken, just search the web for "DIN 72552")

For example, 15 on the ignition switch is the switched + battery output from the ignition switch, and 50 is the control for the starter motor (the starter solenoid). So now you know what the terminal numbers on the back of your ignition switch mean, as well as the voltage regulator, alternator, etc, etc. Hooray!

Turns out there is method in the madness. I have not yet found what "INT" means, but I'm still looking.

-Bryan

[RRoller123]

Internal connection? Shared with another terminal? INT

[SteinOnkel]

Maybe this has been mentioned before, but it turns out that the numbers on various electrical devices do actually have a standardized meaning. It's governed by DIN standard 72552, and the following link summarizes them:
http://www.sealtd.net/quattro/ishamrese ... inals.html
(If the link is broken, just search the web for "DIN 72552")

For example, 15 on the ignition switch is the switched + battery output from the ignition switch, and 50 is the control for the starter motor (the starter solenoid). So now you know what the terminal numbers on the back of your ignition switch mean, as well as the voltage regulator, alternator, etc, etc. Hooray!

Turns out there is method in the madness. I have not yet found what "INT" means, but I'm still looking.

-Bryan

I love how other countries just kind of yoink German DIN norms. Pretty much the entire UK is built to German spec

DIN 824-A was the bane of my existence in college: https://www.youtube.com/watch?v=mfDtQaluXvg We had professors that would flunk you if you fucked it up.

[18Fiatsandcounting]

DIN 824-A was the bane of my existence in college: https://www.youtube.com/watch?v=mfDtQaluXvg

Ausgezeichnet! Now we know why the German trains run on time.

-Bryan

[18Fiatsandcounting]

Internal connection? Shared with another terminal? INT

Maybe. INT is connected to 30 (the brown wire) in all key positions except "Off", so I believe one function is the outside lights on early spiders, where you could leave the parking lights on even when the key was removed (steering lock mode). Not headlights or anything else, just the parking lights.

My '69 has this function, but my '71 does not. Fiat probably figured out very quickly that too many people were leaving their parking lights on and running down the batteries...

-Bryan

[SteinOnkel]

DIN 824-A was the bane of my existence in college: https://www.youtube.com/watch?v=mfDtQaluXvg

Ausgezeichnet! Now we know why the German trains run on time.

-Bryan

Ehhh...I think they're 6th in the global ranking.

But there was a conductor that made sure to stop the train in the exact same spot every morning when I got on. Super regional train, though. The route went over this: https://en.wikipedia.org/wiki/Altenbeke ... ny2007.jpg

Super pretty. Anyway, what were we talking about? Oh yes, the wiring terminals. Yes, they are normed. Also, I'm pretty sure the bolts on these cars are normed as well. That's why they are all 10,13,15,17,19mm. The newer norm (90's) are 12, 14, 16, 18 and so on. And nowadays I think they use almost exclusively inner multipoint.