Power tech Inverter 300w.

Earth leakage protection,a bite hard to do in a vehicle with rubber tyres as the vehicle is not earthed,most people don't bother with it.

Hi Alex,
I haven't been into the circuit of these inverters but amongst other things it may be a requirement to protect your vehicle electrics from an intenal inverter fault where 240 volts could feed back through the 12 volt input wiring and kill your car.

Just a thought,

Jerry

Hi there,

Derek

90 % of the inverters I fit don't require an earth but if it is a pure sine wave then it must be earthed. Modified ones generally don't.

I would also dump the alligator clips and fit Anderson plugs (less sparks around the battery !)

Regards Derek.

Alex

I have a Powertech 150watt Pure Sinewave inverter.

Yes I have earthed it and hardwired the other wires to the battery.

Three years ago the inverter blew a condenser. A knowledgable mate repaired it for me. I was running the laptop off it and I believe the power draw from the laptop was too much(dunno I am not a leccy expert). Now I run the laptop off a Kerio DC cig plug.

Since then have not had a problem. Run the night light and charge batteries off the inverter.

G'day Alex.

Now where are you/we/us with this vexing earth problem.

WTF does he want to know for, well I was given the exact same inverter for X-mas and yep it has the earth terminal on it also,

However in the directions - it gives four options.

(1) Earth to Neg terminal on inverter.

(2) Earth to vehicle chassis. I have a problem with that because if whatever is leaking 230V into the chassis, the first coota to bridge same from chassis to ground ouside may get a tickle or two or while leaning on the cab-chassis and touch the inverter might find a finger missing.

Who can advise on this option.

(3) Earth to earthing rod in the ground

(4) Ignor it and fly by the seat of your pants.

I think they have covered the lot there.

So whats the verdict.

Regards

Ken Robinson