inverter input

[windspeed]

my 1600 watt inverter requires 240 v input to power the 50 amp battery charger

I figured 50 amp charging at 28 v = 1400 watt

1400 watt devided by 240 = 5.8 amps

the 240 v cable is 60 mtr long....... 4 v drop in the loop

would 2.5 mm sq be sufficient......

Windspeed

[DamonHD]

My 3.3kWp of 240V grid-tie PV inverters connect via a shared 2.5mm^2 twin-and-earth to my main fusebox, so I imagine that you'd be OK for your lower power.

Rgds

Damon

[windspeed]

what length is your input cable

I am not grid tied the inverter has a change over switch between mains and batteries

thanks

[sPuDd]

Windspeed,

    it can be assumed that at some stage you will go to a larger inverter/setup. Best thing is to do it right now and use a 6mm square or better. You can use twin & earth, individual coloured wires or heavy duty orange circular. A good electrical wholesaler should be able to price the three options for you on a per meter basis, then have it cut to length off the bulk drums.

sPuDd..

[DamonHD]

Hi

Doesn't matter.

The tie to the fuse box is operating at the same voltage and cable size as yours, but more power, without problem.  Where it the circuit it happens to be makes no odds.

Rgds

Damon

[tanner0441]

Hi

The volts drop in a cable is::  the resistance in ohms per meter X max current in amps X length in meters.... All over 1000

The resistance of the cable can be obtained from manufacturers data sheets.

As you will most likely never hit maximum loads for your cable you can forget cables in conduits and trunking ratings.

Hope this helps

Brian.

[windspeed]

Thanks to all I think I will keep my options open and use 6 or 10 sq

Windspeed