ARB Compressor wiring connection

[shamirj]

hi all,

I have a arb air (single) comp to hook up in the D4, previously permanently mounted and connected to battery terminals. My question is, as its the portable compressor and have drawers in rear should/can i wire the compressor to either the cig outlet or the trailer plug? I do note the cables are quite thick for a reason and usually the cables for the cig outlet are quite thin as are the trailer wiring. Not sure this is the way to go or better off running extra cables from the battery terminals to the compressor in rear of vehicle in thicker gauge wiring. other option is to mount next to battery under bonnet but i do like having it in the rear along with the air comp gauge and assorted bits. thanks for suggestions

[austastar]

Hi,
Not the cig plug, neither the socket or the fuse will be happy.

Use same guage wire (with a fuse) and Anderson plugs for a robust job.

Cheers

[veebs]

I've got the portable version of the ARB single (comes mounted in a box). I lopped the battery clamps off and installed an Anderson plug. This then plugs into the Anderson outlet at the back of the car. No lifting the bonnet and fiddling with the battery cover.
Makes for a quick process, and very neat and tidy. Highly recommended :)

[trout1105]

Most compressors should be run from the cranking battery with the engine running because of their high ampage requirements.
If setting up a rear Anderson plug from the cranking battery to the rear of the truck then you will need some pretty solid wires and fuses to match the maximum draw of the compressor.
The cigarette lighter option isn't a good idea for the modern high volume air compressors.

[veebs]

This model draws ~25A at 29psi, which from what I've read online that seems to be at the lower end of the power draw scale for compressors - there are twin pump models available from online retailers drawing upwards of 90A which would indeed need a small nuclear facility to keep running.

[trout1105]

This model draws ~25A at 29psi, which from what I've read online that seems to be at the lower end of the power draw scale for compressors - there are twin pump models available from online retailers drawing upwards of 90A which would indeed need a small nuclear facility to keep running.

What will you compressor draw when pumping up to 40 PSI ?
I have got one of those Thumper Dual max compressors and it can draw Up to 90A But I am pretty sure it isn't working that hard to air up to 40PSI.
It does pump 300L/min though so I suppose it is running at about 40-50A But I have absolutely No idea how to check haw many amps it is drawing when it is running.
It would be interesting to find out exactly how much amps the compressor is actually drawing when in use, Anyone know how to check this?

[l00kin4]

ARB spec for these doesn't actually provide more detail.

Just unloaded then loaded...

127181

edit: but in this test 12-volt air compressor comparison | 4X4 Australia (https://www.4x4australia.com.au/gear/electronics-gadgets/1603/12-volt-air-compressor-comparison) they show 26.2A draw at 40psi

David

[veebs]

What will you compressor draw when pumping up to 40 PSI ?
I have got one of those Thumper Dual max compressors and it can draw Up to 90A But I am pretty sure it isn't working that hard to air up to 40PSI.
It does pump 300L/min though so I suppose it is running at about 40-50A But I have absolutely No idea how to check haw many amps it is drawing when it is running.
It would be interesting to find out exactly how much amps the compressor is actually drawing when in use, Anyone know how to check this?

The ARB pulls a maximum of 32A at 100psi (SOURCE (http://store.arbusa.com/Assets/PDF/compressorTechnicalSpecifications.pdf)). Plotting the three points we know (0, 29 and 100psi) we can roughly approximate where it might sit for 40psi - around 26A

127182

Something like THIS (http://au.rs-online.com/web/p/products/1231936/?grossPrice=Y&cm_mmc=AU-PLA-_-google-_-PLA_AU_EN_Test_And_Measurement-_-Laboratory_Equipment&mkwid=sa4TVdK6t_dc|pcrid|99325698634|pkw||pmt||prd |1231936)should work to measure actuals

[l00kin4]

What will you compressor draw when pumping up to 40 PSI ?
I have got one of those Thumper Dual max compressors and it can draw Up to 90A But I am pretty sure it isn't working that hard to air up to 40PSI.
It does pump 300L/min though so I suppose it is running at about 40-50A But I have absolutely No idea how to check haw many amps it is drawing when it is running.
It would be interesting to find out exactly how much amps the compressor is actually drawing when in use, Anyone know how to check this?

Plenty of people on here more expert than me but I would think you would be best with a clamp meter to check that.

David

[weeds]

The ARB unit already has a fuse fitted, keep the same size fuse and use same size or bigger cable all the way the battery...or if have an Anderson plug at rear with decent cable going to aux battery.

[Tins]

What will you compressor draw when pumping up to 40 PSI ?
I have got one of those Thumper Dual max compressors and it can draw Up to 90A But I am pretty sure it isn't working that hard to air up to 40PSI.
It does pump 300L/min though so I suppose it is running at about 40-50A But I have absolutely No idea how to check haw many amps it is drawing when it is running.
It would be interesting to find out exactly how much amps the compressor is actually drawing when in use, Anyone know how to check this?

Clamp meter if you have one, or an ammeter with a shunt.

[trout1105]

Clamp meter if you have one, or an ammeter with a shunt.

I don't have either of those items, The most technical bit of electrical Kit I have is a multimeter [bigwhistle]