inverter

tpe1

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hi can anyone help i have bought a proline table top freezer for use in the van. info says its (248 kwh/year.) what size inverter will i need to run freezer while we travel.thanks for any info you can give me tpe1
 
248 Kwh per year is the total amount of energy that will be used.

It is hard to judge what the duty cycle is so even harder to say what current it will draw.
 
See what fuse rating is recommended for it and you should be able to work out how many amps it takes and then work out the size of inverter.
 
It's unlikely to be much. Probably 100-200W at most. A 500W inverter should cover it.

But bear in in mind it's hopeless running a fridge or freezer off a battery due to the continual medium sized current demand, It will flatten your battery in a day or so.
 
Consumption

Dear All

All mains appliances in the uk must have written on them somewhere their power consumption in terms of:
Operating Voltage ie: 230-250v a.c
Power consumption ie; 1000W ( Watts )
or
Operating current ie; 4 Amps
........................................................................................................
All three are related via the formula Watts = Current x Volts

So if you know the Watts, say 100W and you have a 12 volt supply then;

Watts/Volts = Current

For this example,

100W/12V = 8.3 Amps ( a 10 Amp fuse would be needed )

But at 240v it would be, for the same appliance,

100W/240V = 0.42 Amps ( a one Amp fuse would be needed )

Remember, Current consumption goes up massively when you use 12v on mains appliances. Fuse every appliance correctly and too, make sure the fuse is close to the supply ( battery ).

Regards

Antonia
 
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