Thread: Remote switch for compressor

How about installing a pressure tank and plumbing in the compressor permanently? That way you can install a pressure switch at the compressor and some kind of ball valve or similar out at the tyre end of the set up and just run an extended hose (preferably with a pressure gauge) from the pressure tank out to each of your wheels in turn.

Not quite what you asked but in the long run possibly an easier and popular solution.

Regards,
Cameron

I would also suggest the tank and pressure switch option. I have the ARB compressor so it already had that. I just got a gauge and stop valve for the end of the hose.

Originally Posted by 98-110

I run my portable compressor from an accessories outlet box attached to the rear of the centre console box. Rather than sitting the compressor next to each wheel in turn so that I can switch it off/on, I want to have a switch located at the end of the hose. The compressor can then sit by the accessories outlet whilst the hose with switch is taken to the wheel.

If I mount the relay in the accessories outlet box, then I need a 4 pin socket/plug to take 30Amps. But these are not available.

So how is it done??

you will need to run a couple of wires the length of the air hose......figure 8 speaker wire will be perfect for this......

now.....connect the compressor to its own relay and switch the compressor on....
it wont work until the relay is powered up....you power up the relay by using the switch on the hose.....(at the end of the speaker wire)....
as there is very little current required to power up the pull in windings on the relay......
you only need a small switch.....such as a simple toggle switch.....


are you familiar with wiring up relays....?

Thanks all.

I will investigate the pressure switch/stop valve option further - but, thinking on the run here, would that be suitable for a portable compressor??

The relay alternative would work better if I could mount the relay at the compressor, then I would only need a 2-pin plug to connect to my outlet box. That would overcome the 4-pin plug problem.

? for elecys. Does a 30amp x 12v dc plug have the same capacity as a 1.5amp x 240v ac plug?

Originally Posted by 98-110

Thanks all.



? for elecys. Does a 30amp x 12v dc plug have the same capacity as a 1.5amp x 240v ac plug?

Yes it does

30 x 12 (well you should go to 13.5 but let's not confuse the issue) = 360 watts

1.5 x 240 = 360 watts

Ladas

The pressure switch option is the way to go. Running wires out along with the hose is gonna cause a problem eventually ( flexing, rubbing water etc. )

The ARB compressor kit set up for their airlockers come with a pressure switch and small air tank. Fit a tyre tyre guage with valve ( you can pick these up at Supercheap for 20 bucks ) at the tyre end of the hose. The pressure switch will cause the compressor to stop when pressure builds up to about 80 psi in the tank and hose. When you put the guage onto the tyre and open the valve, the pressure drops and the compressor automatically starts pumping again. I'll take some pics of my setup and post them ( maybe)

If you want to use an existing compessor that comes without a tank and pressure switch, I am sure you can buy them seperately. Even the pressure switch on its own may be OK.

In the pics below you can see the presure switch on the outlet of the compressor. This is wired in series with the main power feed to the compressor - simple. I also put in a toggle switch near the compressor to turn the power off completely.

for elecys. Does a 30amp x 12v dc plug have the same capacity as a 1.5amp x 240v ac plug?

Originally Posted by ladas

Yes it does

30 x 12 (well you should go to 13.5 but let's not confuse the issue) = 360 watts

1.5 x 240 = 360 watts

Ladas

I'd dispute this.
Switches, plugs etc are rated for the current they can handle.
A 1.5A plug will only carry 1.5A.
If you draw 30A through it, it will fry.

Plugs do not consume power, so they are not rated in watts.

Hi98-110
Grab a couple of "anderson connectors" I got a set today to hook my boys 240V inverter for his laptop.Never seen them before,rated at 120amps.Beauty is the plugs are 1 of,ie they plug into one another but only correctly.So you fit an anderson plug to your power source,then any 12V item you have you fit an andreson plug to it and it plugs in.Top design 1 plug no need for male/Female plug.
(watch the feminazis dont read,us males will become extinct overnite )
Perhaps hardwiring/storage tank/pressure switch is the real answer.
Andrew