Bosch type relays with positive ground? Related etc.

[Duncan M]

Anyone using "Bosch" relays for items on their TC?

[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.

[Norman Golm]

117-515 is the Moss number of a headlamp kit.

[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

[Gene Gillam]

Polarity should not matter on mechanical relays.

[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.