laknox
Apr 07, 2015Nomad
30 amp / 50 amp
We're considering a new FW and a couple of the options are upgrading the single AC to 15k with 2nd AC prep (I believe the prep is standard). There is also a 30 to 50 amp option. First question; if I...
Coach-man wrote:You can still only draw 50 amps on either leg period on either c/b. They are in fact the same and operate the same. Period.spud1957 wrote:Coach-man wrote:
Not sure if covered, or covered well! 30 amp vs 50 amp? It is just 20 amps difference what is the big deal?? Well, the problem is it is a misnomer, you see 50 amp service is NOT 50 amps! 50 amp is two 120 volt 50 amp feeds or 100 amps total, where as 30 amp service is only 30 amps! Go with the 50 amp service, only downside is some state and Federal parks only offer 30 amps. You can use a dogbone adaptor to plug in to a 30 amp service, but you will only have 30 amps to use, so where are you going to camp? You mentioned an upgrade to a 15K air unit, that will draw around 14 amps while running, maybe up to 20 amps on start up which leaves 10 - 15 amps for other "stuuf" which depending on what you are doing may leave you short with only a 30 amp connection. If you camp anywhere in the south, I would also recomend the second AC unit which should provide enough COOL for your rig. Good luck
No you do not have 100A. You have 50A protecting two 110V legs. These are the breakers used for 50A 120/240V circuits.
Yes those are the two 50 Amp circuit breakers for a 50 amp RV outlet! You did not post the single 30 Amp circuit breaker for 30 amp service. Now granted they are tied together so niether leg can draw more than 50 Amp's, but each leg can draw upto 50 amps, (2 x 50 = 100)! If you are talking about 220 volts you are 100% correct you can not draw more than 50 amps across the two legs, but an RV is always 120 volts.