Power invertor

[Rawze]

(08-10-2021 )Explosia Wrote:  Is a 200 amp breaker common practice for all inverters? I used an 80 and it lasted 4 seconds.

You need to size the fuse(or breaker) according to the WIRING size that was used to install the inverter. You need to also SIZE THE WIRING properly so that the correct amps to run the inverter can be supplied as well. It takes a LOT of amperage to run typical household appliances (10x plus all the losses) on a +12Volt Automotive system. Here are some real world ratings and values for that will yield a safe, highly reliable system, and compensate for those losses.


An 80-amp fuse in a typical inverter will only supply about 800-900 WATTS max (at 120Volts) before getting hot and/or popping. That is barely enough to power a typical household coffee maker.

3,500-4,000 WATTS inverters are known in the industry as a "Hotel Load" style inverters. Their continuous use ratings are usually a bit smaller at about 1500-1800WATTS . These style of 3,500 - 4,000 watt inverters would be the same power capacity as a typical single household outlet. They will be able to run a full power microwave or other single outlet appliances without overheating. Anything smaller, and it is going to get hot and/or easily overload if used heavily.

Tags:

truck wiring, battery size, inverter size, hotel load, wire size chart, alternator size