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will it be powerful enough?

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used the Weaco 240 fridge at the weekend via the 600 inverter in the Raider.

Want to use it in the series but the inverter in that is only 300.

Will it be able to cope? or should i swap them over?

Ta muchly

Mandy( Angelina look a like according to Bippie :lol::lol::lol:)

(still giggling over that one!)

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I wonder what ooooooomph it needs to start though?

On Dad's farm (as on all farms here) they generate their own electricity. The generator is only putting out 10-15 amps as a base load with freezers etc running but when it first comes on and all the compressors fire up in about ten freezers simultaneously the ammeter can hit 80-100 amps ... generators can put that sort of surge out briefly but inverters often can't, so a much bigger inverter is often needed to start an inductive load like a compressor motor.

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Electrics head on........ :lol:

To Convert AMPS to WATTS:

Multiply: AMPS X 230 (AC voltage) = WATTS

This formula yields a close approximation of the continuous load of the appliance

To Calculate approximate Startup Load:

Multiply: WATTS X 2 = Starting Load

This formula yields a close approximation of the starting load of the appliance, though some may require an even greater starting load. NOTE: Induction motors such as air conditioners, refrigerators, freezers and pumps may have a start up surge of 3 to 7 times the continuous rating.

Most often the start up load of the appliance determines whether an power inverter has the capability to power it.

For example, you have a freezer with a continuous load of 4 amps, and a start up load of 12 amps:

4 amps x 230 volts = 920 watts continuous

12 amps x 230 volts = 2760 watts starting load

You would need an power inverter with peak-surge rating greater than 2760 watts.

FORMULA to convert AC Watts to DC Amps:

AC Watts divided by 12 x 1.1 = DC Amps

(this is the size vehicle alternator you would need to keep up with a specific load; for example, to keep up with a continuous draw of 1000 watts, you would need a 91 amp alternator)

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It doesn't really help with determining the peak - but if it is a compressor designed to run off an inverter (which it might be on something like that) it may have a "soft start" facility to reduce the peak current draw. Try it and see is the only way to find out! If your inverter goes "bzzzzbeepbeepbeepbeepbeepbeepbeepbeepbeepbeepbeep" it probably means it didn't like it :D

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