What is the 12 volt dc current draw in amps or watts of a RM2350 caravan fridge

12 volts DC with 0.75 amp current draw. http://support.lowrance.com/system/selfservice.controller?CONFIGURATION=1001&PARTITION_ID=1&secureFlag=false&TIMEZONE_OFFSET=&CMD=VIEW_ARTICLE&ARTICLE_ID=3945

what is the question again, please? WATTS / VOLTS = AMPS (formula is mainly true for DC).

you are missing the voltage supply here to get an definitive answer
for 240 volts drawing 4.8 amps the required wattage is 1152
for 120 volts the wattage is 576 watts
for 120 volts with a current of 900 watts , it equates to 7.5 amps
with 240 volts with a current of 1150 watts , it equates to 4.79 amps
so you can see the problem by not stating the supply voltage
get access to an cable clamp amp meter / watt meter from an electrician and read the current on starting the ac unit
if it exceeds 900 watts for 120 volts or 1150 for 240 volts , consider a bigger generator

Your calculations is correct - 220 X 0.7 = 154 watts.
If your fridge only runs on 220 volts then you need solar panels that charge 12 volt lead acid batteries and then use a inverter to convert 12 volts DC to 220 volts AC.

Let just wait a minute. You have an inverter that is rated at 4500 watts. This spooky. The inverter has a three phase input/three phase output? What is the inverter going to be used for?

Next question. What type of batteries are you using and what is the voltage/current in series or parallel? What will be the total voltage you will producing with the batteries? What is the total current of the batteries.

Another question? What is the voltage of the 28 amps? If it going to dump 28 amps across some batteries that rated at 12 volts and 1400 amp/hrs. For 12 volt batteries with a total of 1400 amps. What you will need approx 14 to 14 1/2 DC and with 28 amps across the batteries for charging these batteries. The batteries will be gone in about 1 hour. Boil all the water out of them. When a battery starts to boil it release water with hydrogen gas (the gas is very explosive and dangerous).

You also don't have a regulation circuit to limit the amount of current depending on the needs of the batteries. Also, you don't have a trickle charger to keep the batteries fully charge when the batteries are idle.

You will also need DC regulated charger that will keep the voltage 2-4 volts above you battery voltage. Without this voltage above the batteries voltage it will not charge those batters. Batteries need to forced to except a charge that why voltage above the source voltage. If you can check the voltage on your car/truck with a 12 volt system. While engine is running the voltage across the battery will be 13.8 to 14.1 volts. Now, the current limiter is the alternator it has a regulator built into it for stabiizing voltage and current went the batteries require more current but it limited by alternator regulator
Now, to get more current out of the alternator the regulator will supply dc voltage to the stator of the alternator generator more current. More dc voltage is supplied by the regulator but the dc voltages is limit to about 24 volts. Another limiting factor is the alternator copper windings diameter---larger diameter more current, small diameter less current. Utilities systems use big mega watts generators. The maxi um dc voltage for these three phase generator would like 500 to 800dc volts for peak to peak output. There is a simpler way of doing this.

You need to rethink everything here. Also, I can help you if you supply the needed information.
I truly wish you luck in your electrical endeavors. GB you. stewbison

To find how much current, in amps, can be drawn by an appliance you divide the voltage into the watts, in this case 12 into 120 which gives a max of 10 amps. Because this is the max you should draw a little less e.g. around a max of 8 amps. Your amp should have a plate on it that shows how much current it draws either the amount of amps or the watts. If it draws over 8 amps or more than 100 watts you should connect it directly to the battery. Be aware that it can also run your battery down if you use it when the car engine is not running.

Ohm's law tells us that: volts = amps x resistance and watts =volts x amps. Watts (300) = volts (240) x Amps (?); or 300 / 240 = 1.25 Amps That means the inverter can supply up to 1.25 Amps to a 240 volt load.

The primary is 12 volts, this is just 1/20th of the secondary 240 volt output. Since the best you can ever get is 100% efficiency -this means you'll need to supply 20 times the current. 1.25 Amps (at 240V) x 20 = 25 Amps (at 12V). As a check, from above Ohm's law that states Watts=Volts X Amps we get: 12VDC x 25Amps = 300Watts. Check!

Some side notes. The Ohms law used above is for DC circuits and purely resistive loads on AC circuits. I do not know what your 1.25 A @ 240VAC load is - but I suspect it won't be purely resistive. Also, since we're working with an electronic inverter as opposed to a transformer and DC rectifier there are some things that push losses higher. You might need to provide a 30 Amp 12 VDC source voltage in order to provide the 1.25A @ 240VAC output. Lastly, I wouldn't not run the output at maximum for long periods of time - or at all. 1 Amp @ 240VAC would be much better.

I hope this answered your question & good luck! Please rate my reply - thank you.

there is no such thing as "ac/dc" current-its either one or the other--if its a 120 Volts then chances are it is AC already-at 60hz---the 15 Watts or any Watts is the amount of draw from the unit-not the power supplied to it- Watts= Volts(supplied)/Amps(being used) if you only want to supply 15 watts then reduce the amps (with a fuse) to .125amps

Hey, Question: Is the 2400 watt the peak rating or the continuous rating of the unit, and what is your power source for the inverter. If 2400 is the peak, the 1200 is probably the continuous. Your 75 watt fridge will draw probably 150-170 watts to start up, which will load the inverter to draw 15-17 amps of load on your 12 volt power source. If the battery supply is weak, the current draw at startup will cause the voltage to drop and set off the alarm. Getting the start up out of order may work for a while, but will eventually blow the internal fuses on the inverter, or possibly blow out the capacitors. Check the condition of the battery supply, and make sure the bar fridge is in good working order to resolve this problem.

if the heater is 120 volt or 240 volt its really pretty easy. at either end is a cover. remove the cover and you'll see a wirenut or maybe just two wires. one side has an integral thermostat. connect your supply to the two wires on the thermostat. connect the other end in your breaker box with the appropriate sized circuit breaker. wire size feeding it will depend on its current draw. how many watts is the heater? 1500 watts will draw 6.25 amps at 240 volts so you can use 14 ga wire. 2000 watts will draw 8.3 at 240 volts - so 14 ga is still ok. 2500 watts at 240 draws 10.41 amps. 3000 watts draws 12.5 amps at this stage I'd use 12 gauge on a 20 amp breaker.