30 amp trailer,,how big of a generator would i need in wattage to run my trailer?

Answer 1

30amps @ 120V is 3600 watts. Go for the next size up, about 4000 watts.

Most generators in that size range will supply 120/240V, not just 120V. Look for something either with 120V only or with a voltage selector switch. A 5000 watt generator which supplies 120/240V will be capable of only 2500 watts at each 120V output, less than your 30A requirement.

Alternately if you find someone competant, the generator output windings can be reconfigured in parallel to supply 120V only. Ensure you use the proper type output plug and a properly sized circuit breaker.

I have other generator related information on my web pages...
http://members.rennlist.org/warren/generator.html
http://members.rennlist.org/warren/genfaq.html

Answer 2

Assuming that you're talking about 120 volt service,

30 amps times 120 volts = 3600 watts, or 3.6 kw.

That will just barely do the job, if you trailer can really pull all 30 amps.

A bigger generator than that wouldn't hurt anything (except maybe burn more fuel). A smaller generator would either put out a lower voltage (resulting in dim lights or burned out appliances) or just shut off altogether.

If you only used a part of that 30 amps at any one time, a smaller generator might work out OK. But it's a gamble.

Answer 3

This depends on the voltage and number of phases (3 phase or single phase). Larger generators like you are considering are rated in VA (volt amps) since volts times amps do not equal watts in ac. Another consideration is what equipment are you powering? A 30amp motor requires much more than 30amps to start it. Another question is, where do you get your 30amps from? Is this the load or the breaker size?

My advice would be to contact a generator rental company and tell them what you have. they will tell you what you need. You don't have to rent it from them.

Alternatively you could repost the question with the extra information and hope you get someone that can actually answer it instead of guessing.

Answer 4

you ought to ascertain with a interior reach RV broking as to what length they might recommend. turbines for RV's are made diferently than common turbines used via contractors. The RV turbines are particular instruments that run at decrease speeds so they may be muffled. you do no longer desire to purchase a contractors generator from say abode Depot, and then pull right into a campground and crank it up..........they're going to close you down real speedy via noise.