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MG Midget and Sprite Technical - Ignition switch connections

Started to fit ignition switch to my 1977 midget checked wiring diagram and contacts say terminals 1 and 5 and 2 others not marked but switch has contact 15 , 30, 50 , 57a , and 75 marked on the back on relays 30 is usually feed but the others i am not sure about any one know what goes to what.
mark (1977 1500 Midget) Preston Lancs

Hate to waste anybodies time just found DIN 72552 standard and worked it out useful standard to know about
mark (1977 1500 Midget) Preston Lancs

? can someone translate into readable grammatical English please.
David Smith

Sorry, wiring diagram shows wire going to terminals 1 and 2 and there are two other wires that have no terminal numbers allocated to them . The ignition switch that is fitted has terminals on the rear marked 15,30,50,57a and 75 I have since found out that these relate to DIN72552 STANDARD.
mark (1977 1500 Midget) Preston Lancs

I thought he was meaning relays - I expect it's in the 1977 owners handbook though :)
N Atkins

Hi guys,


30 is battery live Brown


75 is accesory White/Green


15 is ignition White



50 is starter White/red






57aI think is live with key out and is used on some european vehicles as a feed for a parking light system.


Hope this helps



SR Smith 1

This thread was discussed between 27/06/2011 and 28/06/2011

MG Midget and Sprite Technical index

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