50-amp Service FINALLY

We JUST got our power upgraded to 50-amp service from 30-amp service. HOW MANY AMPS can be allowed into each leg?

I have heard that a maximum of 80% of the rated Amperage can be used total. That means 40 amps for a 50 amp service.
Any ideas or suggestions?
 
Well, you may not know this and most RV-ers do not:
You should be able to get close to 25 amps per leg. If you gave a surge protector you can see when appliances kick in and out of service
Technically, I was told my a Journeyman Electrician, who owns an RV, that one can SAFELY only use 24 Amps in a 30amp service environment and 40 amps in a 50 amp environment.

The figure is 80%!

In my other RV, a 50-amp capable Holiday Rambler 40 Foot endeavor, I kept noticing that when I ADAPTED to a 30-amp Plug and went above 24 amps, over time: the ONE LEG where ALL of the power flows in a three-pronged 30 amp MALE PLUG, would get burnt esp in Summer times when I ran one A/C of my two A/C roof mounted Units and mistakenly ran a toaster oven. Eventually the adapter plug would melt.

Remember that in a 30-amp plug, only ONE leg has power flow. In a 50amp plug, you have TWO legs of Voltage Flow (120V each).

The maximum for 30 amps is 24 and for 50 it is 40 amps (80% MAX).

My question is more about HOW WELL are Heartland RV's BALANCED? ARE THE HEARTLAND PEOPLE/ENGINEERS SMART about Power distribution from you Guys' Experience.

Example: in my 2020 Landmark Oshkosh Model, I have nearly 12 primary 110 Volt Appliances: 3 A/C units (one with a Heat Pump), a refrigerator, Microwave, Oven, Toaster, three TV's (one outside) and a standing Plug-In Tower Heater (from Costco). Of course, I know that running all three A/C units will trigger the power Management system to disable ONE item and then another in sequence.

My question is: DOES HEARTLAND balance those primary Power Items listed between the TWO LEGS of a 50-AMP SERVICE ELECTRICAL LAYOUT.

I see plenty of stupid design mistakes made by Heartland and there are DOZENS of STUPID MISTAKES made with the Materials used (these are NOT LIKE HIGH-END DIESEL PUSHERS) - - Those Holiday Ramblers and Monaco Units are dazzlingly well made RV's. Heartland uses PAPER strips all over this thing and they deem this to be a "365" full timer unit. Many of the strips used to cover the gaps at the floor level have already came loose (glue did not hold).

The HANDLE to the right of the Stairs going up into the FRONT of this unit (RAILING for hand holding while climbing the three steps) was mounted into a wall panel. Think of the panel material being like SHEET ROCK but thinner and slightly more durable. THE SCREWS go into the void and were not fastened to a Wall Stud at all. IT PULLED RIGHT OUT.

THAT is a sign of a TERRIBLE DESIGN ENGINEERING GROUP who take NO PRIDE in the materials used or pride in the workmanship on the Assembly side. This is purely B.S. - - if you ask me. And likely you will not want more from me here.

These HEARTLAND UNITS are CRAP.

In summary, these Heartlands are rather LOW-END when it comes to materials and the workmanship sucks.

Another example: When we first bought this unit, I had ONE A/C UNIT running and an OVEN, and SMOKE POURED OUT OF OUR ELECTRICAL PANEL (to the right, at floor height at the entrance).

I ran out and turned off the breaker, and came back in with an Electrician Pal (neighbor) and he found that at least ten of the TIE DOWN SCREWS in the panel were LOOSE...and they were "ARC-IN." We tightened them all and we have had NO issues since then. THAT was a close call and this RV could have burned to the GROUND.

CHECK YOUR ELECTRICAL CONNECTIONS for tightness, guys!
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That convinced me that Heartland has a bunch of stupid dope-smoking Assemblers who FORGET STUFF.

We have never been able to use the built-in ROUTED COAX cables for our TV's. They did not connect the Coax Cables in the routing of those cables and the factory REP (TECH) admitted it and told me to check a splitter inside the wall plate by our big TV in the Bedroom. I cannot get to it.

This will be our last Heartland product because of this workmanship problem.
 

jerryjay11

Well-known member
As I have dealt with electrical appliances and held an electrical wiring license during my HVAC days I have never heard of a 50, 30, 15. 20, or any circuit limited to 80%. So, I did a Google and find those searches agree with me, even if it's an RV. Only time I would be using that 80% figure is when filling my LP tanks. Here is one site that explains amperage use in an RV https://www.pickhvac.com/rv-air-conditioner/amps/

Note: CB's are designed to take a momentary amperage exceeding the rated amperage (referring to a "Slow Blow" CB or Fuse) to accommodate an AC starting, or a domestic refrigerator starting. Though the article above states refrigerators uses 6 amps, I have checked many a fridge and they run between 3 and 6 amps with the lower number more prevalent.
 

wdk450

Well-known member
I stayed at Thousand Trails Lake of The Springs in Northern California years ago, and at that time they offered some upgraded "50 amp" sites for a surcharge of $5 a night. While in one of those sites, I took a close look at the shorepower pedestal electrical boxes and saw that the dual breakers there were marked "40 amps". I raised a small fuss for them not providing what they were charging for, that is "50 amp" electrical service.

Should these breakers truly have been 50 amps as every other 50 amp RV electrical service I have experienced??
 

Dahillbilly

Well-known member
only derating I've ever dealt with is when placing wires inside conduit. The amperage rating of the wires has to be decreased according to how many conductors are in the conduit. Never seen derating for circuit breakers. Just my experience doing industrial electrical wiring.
 

jerryjay11

Well-known member
I stayed at Thousand Trails Lake of The Springs in Northern California years ago, and at that time they offered some upgraded "50 amp" sites for a surcharge of $5 a night. While in one of those sites, I took a close look at the shorepower pedestal electrical boxes and saw that the dual breakers there were marked "40 amps". I raised a small fuss for them not providing what they were charging for, that is "50 amp" electrical service.

Should these breakers truly have been 50 amps as every other 50 amp RV electrical service I have experienced??
If the breakers are 40 amps then all you have available for service is 40 amps. Also, I've never been to a campground be it state park, national forest, or private park that has a surcharge for 50 amp service. Typically, those sites have multiple service, including 20, 30, and 50 amp service and a set price for the site. Not a separate surcharge. I'd make a stink about it too.
 

wdk450

Well-known member
I believe that the $5 surcharge was dropped by TT in California as some member complained to the California Public Utilities Commission, and under their rules flat rates could not be charged for electrical service, just the results of electric usage meter readings. TT didn't want to do all those daily meter readings (or pay for installing all those meters), so they dropped those charges. At the Northern California park (Lake of the Springs) I had written notification on each park rules sheet that this would be charged to your credit card on file, and then these charges never did appear on my credit card.

Another TT park, Wilderness Lakes in Menifee, Ca. did a big 50 amp upgrade of about 100 spaces, that took them about 2 years to get done. When the project was done, they printed up a new batch of park maps, with a bold type printed announcement of the $5 surcharge on the front page. Very soon after that the newly printed maps handed out at the entrance gate had that surcharge announcement lined out with black permanent marker, and they must have hand corrected thousands of those maps, as I kept seeing them for at least the next 6 months.
 
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