automotive relays 12 / 24

[supersparky]

FYI, I bypassed it just for annoying me. Could have been dodgy relay(s).
JD, I was using 24v relay on 24v switching but with a 12v load (and a tiny one at that, just telling my radio to show reverse cam when selected at the gearbox) but I couldnt get the relay(s) to even click.
Interesting

Wayne, Does your bus have a reverse beeper somewhere in that same circuit? Only asking because when I did exactly the same thing on the old Coaster every time it beeped the vision went blurry. It worked fine when I used a separate circuit to power camera. I put it down to back EMF from the beeper.

[Vik351]

Water and electics don't mix. try this stand in a bucket of water and grab a live 240v, that will give ya a headacke. :evil
Bri Bri

Owned by Terence...

I tried that trick on a wooden deck with a test pencil, made contact with the posi,red wire...WTF...??? no glow in the test pencil... Hmmm ,didnt add up till it dawned on me, no earf... touched the metal post base with my foot and got me little orange light glow...!!!

Hence why I aint gunna mess electrickery no more, 240 or 12 volt solar in the MH...!!!

vik...

[bagmaker]

Hi David, there is a beeper in the circuit but I disconnected it for wiring setup, I haven't checked if it affects the cam. We run 2 screens, a dedicated rear facing 7" for full time, this can be switched to a roof view forward for branches, etc. The Radio also hooks to a wide angle reverse cam activated when reverse is selected. This screen is crystal clear -all 12v house battery- but the full time 24v screen suffers some mild interference when the alternaltor is busy. Some magnetic iron wrapped wiring may assist with this although the interference is only light, horizontal lines.
JD, the switch seems to be a simple on/off single pole, no earthing. Gbox is Eaton RR.
T1 you could be right about the lack of loading being the issue.

[Barboots]

I used the 12V version of this to switch reverse cameras on The Cheap.

http://www.altronics.com.au/p/s4444-24v ... lay-board/

Cheers, Steve

[bagmaker]

ya that would do it too, nice find Steve

[jon_d]

Wayne,

what I meant was like this;

On the Isuzu, the reverse switch has one wire. The circuit is: +12>> light >>> switch >> to earth via the switch case.

So, when I select reverse, the switch closes and 'connects' the earth though the casing.


Does your reverse switch have one or two wires?

[T1 Terry]

I used the 12V version of this to switch reverse cameras on The Cheap.

http://www.altronics.com.au/p/s4444-24v ... lay-board/

Cheers, Steve

Great find and 24v as well. You are a whizz at finding these things, maybe I should give you a job

[Barboots]

I used the 12V version of this to switch reverse cameras on The Cheap.

http://www.altronics.com.au/p/s4444-24v ... lay-board/

Cheers, Steve

Great find and 24v as well. You are a whizz at finding these things, maybe I should give you a job [emoji38]

Thanks Terry... I appreciate you saying that. [emoji5]

[Mrcoolabah1au]

Yes he got to have a side kick sometime

[brianh]

Hi Vik ,that orange glow was it comin from da pencil or ya eyes.
Bri Bri