@@DIYwithDeon You are very welcome. Would you be open to doing a video of the issues of hard wiring third party devices to modern cars. My friend does this and now it is a nightmare to find out if the parasitic draw on the vehicle battery is caused by a faulty factory installed component or one of his fancy "must have" accessories?
Hi Deon, Thank you for the excellent video! Just for clarity please: Let us say we wire a 30 amp 5 pin class B BOSH relay correctly, and pin 30 & 87a are therefore already connected; how much maximum current may be allowed to flow between pin 30 & 87a (before the relay is switched to pin 30 & 87)? Is it also 30 amp, like between pin 30 & 87? Regards
The DIN standard in question is 72552. As I've understood the numbers were originally intended to be circuit numbers, ie. the intention with the simple vehicle electrics of the past was to be able to just connect every terminal 31 (battery -) together, every 30 (battery +) together, every 15 (battery + through ignition switch) together, etc. Of course, this kind of circuit numbering isn't always practical for common parts like power switching relays. (Why'd you manufacture the same product with just different terminal numbers?) There may also be a wire colour coding standard that matches with these circuit numbers as I've commonly seen the following colours match in older VWs and Mercedes-Benzes: 31 is brown, 30 is red, 15 is red/black, 54 (brake light) is black/red, 56b (dipped beam) is yellow, 56a (high beam) is white, 58R (right side parking lights) is grey/red, 58L (left side parking lights) is grey/black, L (left indicator lights) is black/green, R (right indicator lights) is black/white... There are many others but those are the ones I remember without seeing them in their usual application.
Nice work. Thank you.
You are most welcome, thanks for your support! 👌🏻
@@DIYwithDeon You are very welcome. Would you be open to doing a video of the issues of hard wiring third party devices to modern cars. My friend does this and now it is a nightmare to find out if the parasitic draw on the vehicle battery is caused by a faulty factory installed component or one of his fancy "must have" accessories?
Thanks man you solved the issue...30 it is. It's always just a fuse
👌🏻
Hi Deon,
Thank you for the excellent video! Just for clarity please: Let us say we wire a 30 amp 5 pin class B BOSH relay correctly, and pin 30 & 87a are therefore already connected; how much maximum current may be allowed to flow between pin 30 & 87a (before the relay is switched to pin 30 & 87)? Is it also 30 amp, like between pin 30 & 87?
Regards
You are very welcome! Yes, the maximum current is also 30 amp between pin 30 and 87a. Unless otherwise indicated on the relay. 👌🏻
The DIN standard in question is 72552. As I've understood the numbers were originally intended to be circuit numbers, ie. the intention with the simple vehicle electrics of the past was to be able to just connect every terminal 31 (battery -) together, every 30 (battery +) together, every 15 (battery + through ignition switch) together, etc. Of course, this kind of circuit numbering isn't always practical for common parts like power switching relays. (Why'd you manufacture the same product with just different terminal numbers?)
There may also be a wire colour coding standard that matches with these circuit numbers as I've commonly seen the following colours match in older VWs and Mercedes-Benzes: 31 is brown, 30 is red, 15 is red/black, 54 (brake light) is black/red, 56b (dipped beam) is yellow, 56a (high beam) is white, 58R (right side parking lights) is grey/red, 58L (left side parking lights) is grey/black, L (left indicator lights) is black/green, R (right indicator lights) is black/white... There are many others but those are the ones I remember without seeing them in their usual application.
Thanks for all the details and support! 👌
30 is permanent plus.
15 is plus over steering wheel lock.
31 is minus.
85 is minus over a switch
86 + 87 are the relay contacts
👌 Not the type of relay in question though.