watts, volts, amps......need a bit of help

Phone you sales man and ask him he can give you all the specs, most cabinets that are for the fridge have a dedicated circuit for it in the cabinet on the floor. It is a 12 volt fridge. Usually 15 amps but I have seen 20 amp ones.

 

the best way to see is look at specs of both>>>>>>
i think you will be fine.........you NEED to know how many AMPS the (115v) fridge takes for normal run & start up (which start-up usually doubles the amps needed) then check to make sure the inverter will be able to match or exceeded the amps needed.
Some inverters are high watts but not carry the load of the amps needed to run the device.
Most of that info you can find in the items specs for both the inverter & fridge ( & other devices) but the amps needed from the device & the total amps produce by the inverter is easiest way to answer will the inverter pull this load from said appliance.

 

Most circuits don't handle more than 20 amps.
And even then, if you draw 20 amps for more than a short time you will fry the wiring.

I have a 12V oven that I have to run in stages, or it overheats the plugs.
And it is not supposed to draw more than 20.

But a 20 amp draw on a 20 amp circuit means things are starting to melt at some point.

 

which, IMO, is the reason you should ALWAYS exceeded (or get devices that are under) the amps(doubled for start up) needed instead of to try to push the breaking point

 

I am not an expert on inverters but I wonder if a good well built inverter already has locked rotor protection built into it. If it does and the tractor electrical system can handle it, there should be no problem. However if the inverter does not have locked rotor protection I suggest you buy a 12 volt frig.

 

Volts X Amps = Watts

Watts / Volts = Amps

Watts / Amps = Volts

If your plug or wires get hot, the fault is the wire is too small to support the Amps being used. The two things to consider in sizing wire is the max Amp draw and the distance the wire runs. The longer the run the larger the wire needs to be. Using an inverter with a 1500W continuous rating at it's maximum capacity (1000W microwave) will draw 1500 /12 = 125 amps. The cable from your batteries to the inverter should be at least as large as the cable to your starter.

 

Not sure where you're getting 1500/12=125 amps. For the example you give, a 1000W microwave, it should be 1000/120(volts, on average)=8.333 amps. 125 amps is a huge amount.

 

watts / volts=amps
volts X amps = watts

so 2500 watt inverter is 20 amps you can run anything off 2500 watts that you can run off a single household outlet

a small mini fridge shoulden't use more than 800 watts

 

If a 1500 watt inverter is pulling max wattage (something it won't do long) it is pulling 125 amps at the battery. It won't be pulling those high amps at the outlet. The amps on one side of the inverter is different then the other. It's the same concept of how a transformer works.

Edited to add this high amount of current draw is why some company's prohibit inverters and why there are a lot of fires started.