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Bosch type relays with positive ground? Related etc.
Posted: Mon May 18, 2015 12:31 pm
by Duncan M
Anyone using "Bosch" relays for items on their TC?
Re: Bosch type relays with positive ground? Related etc.
Posted: Fri May 29, 2015 9:09 pm
by Duncan M
These relays do not care if it is positive or negative ground. Nothing need be reversed, or anything like that. Only difference is the car is positive ground. So neg power goes to normal "power" leg, and pos goes to normal ground leg, etc.
Re: Bosch type relays with positive ground? Related etc.
Posted: Mon Jun 01, 2015 7:28 am
by Norman Golm
117-515 is the Moss number of a headlamp kit.
Re: Bosch type relays with positive ground? Related etc.
Posted: Mon Jun 01, 2015 11:07 am
by Duncan M
Yes, they show a neg ground schematic, and use 4-leg relays. I know 5-leg relays work on pos ground, not sure about 4-leg. Moss does not mention pos ground in the instructions. Seems odd.
http://www.mossmotors.com/Shop/ViewProd ... rtOrder=10
Re: Bosch type relays with positive ground? Related etc.
Posted: Mon Jun 01, 2015 12:11 pm
by Gene Gillam
Polarity should not matter on mechanical relays.
Re: Bosch type relays with positive ground? Related etc.
Posted: Wed Jun 10, 2015 11:32 am
by Duncan M
Yes, polarity no matter. Though, apparently, some of these relays have some sort of diode across the input and ground. I could not tell you which ones.