asked
I hav a permanent Power consumption of 40 Watt 230Volt AC on my Boad.How much amp will a Multi plus 24/3000/70-50 need from the batteryes to produce the AC Power? And How much amp will a Phoenix 24/250 need from the batteries to produce the AC Power?
30-40 is pretty normal for a 3000VA Inverter.
The small Phoenix will need 2-3W.
The idle power consumption can be reduced by using one of the AES settings of the Inverter.
With only 40W of AC load, the inverter power draw from the battery will be close to inverter's "zero load power" + about 45W.
Current [A] = Power [W] / Voltage [V]
You can find the inverter's zero load power draw in the datasheets.
Thank You for your answers. To summ up you mean it makes sense to have a second small inverter(for permanent user like a freeser) to save Battery power. And in addition I can use the AES settings of the Phoenix 24 250 to reduce power consumption even more .
The fridge use 30 Watt and the Phoenix 250 can deliver a Peak power of 400 Watt should`n that be suffisient?
No. The starting power required for refrigeration is mind breaking.
I have a FF that draws 55w @ 230v. My BMV tells me that it peaks at 80a @ 12v.... like 1000w....
Take your fridge with you when you go inverter shopping.. No start, no buy..
Instead of a second inverter and an 230V AC fridge, maybe look into buying a 24V DC fridge.
I really looked into this extensively.
I could buy a 12/24v FF (fridge/freezer) for $XXXX.
I could buy a 230v FF @ $X (quarter cost) and use the extra $ to improve my battery/inverter capacity.
Should my 230v FF die prematurely, there are literally a handful of different branded/same sized units that can be installed without hassle.
Yeah, they are expensive. But the cost might be justified for a boat.
For using in a house, most likelly not.
I am mobile, so fuel to shift location comes into play.
The difference between the energy consumption/ FF volume (storage) comes into play.
I had a nice new 85L FF. I dumped it in favor of a 216L FF.
The larger 216L FF had over twice the storage volume, whilst using less energy, and giving me twice the time before having to move on.
TCO.
I agree 24 volt freezer is not an option
