50A Service

Dave_Monica · 02-23-2013, 01:29 PM

I have a question for those that have 50A service in your camper. How many 120V AC circuits are wired in the camper? Hopefully, the answer is more than 2 circuits.

Dave

Dave_Monica · 02-23-2013, 07:47 PM

C'mon...somebody throw me a bone!

You should be able to tell looking in the breaker panel for # of circuits marked GCFI.

Dave

TheFordes · 02-23-2013, 07:57 PM

DH says two. Our third AC has its own power cord that is 30 that can cheat to a 20

38FLCamper · 02-23-2013, 08:51 PM

There are 2 50 amp 115 Volt AC circuits. Check out the diagram and article below.

No Shock Zone. Part Three. Testing campground outlets | RV Travel

RodeoGeorge · 02-23-2013, 09:08 PM

Quote:

Originally Posted by Dave_Monica

I have a question for those that have 50A service in your camper. How many 120V AC circuits are wired in the camper? Hopefully, the answer is more than 2 circuits.

Dave

I'm about a month away from answering your question, because one of the first things I'll do is identify what each breaker controls.

If I'm not happy with the way they have installed the system (mainly receptacles) I'll be adding some double breakers (if necessary) and running some more romex.

I also do this so that we can run a space heater without having it doubled up with other items.

RodeoGeorge

38FLCamper · 02-23-2013, 09:13 PM

Ahh are you asking how many circuit breakers there are in the rig? If so, I believe we have 9 circuits across the two 115 Volt feeds. But it is snowing and I have broken my foot so taking a trip out there is not going to happen right this minute.

We have a WFCO panel for the AC panel circuit breaker.

To wa3pnt - don't pay too much attention to the labels - the circuit labels in our unit do not align to what they control.... I was going to figure those out once the temp warms up a bit here. Washer/Dryer circuit controls the Fridge.

JDWeir · 02-23-2013, 09:41 PM

My rig is in my sig line...

4 breaker slots, 3 of which have double breakers, 1 full breaker for a total of 7 circuits. 2 AC's in the unit and 1 breaker for the water heater leaves 4 other circuits.

HTH

Dave_Monica · 02-23-2013, 09:57 PM

What I'm trying to determine is the number of 120V circuits for the duplex plugs for coffee maker, heaters, etc. Our camper with 30A service has 2 such circuits...I was wondering if a camper with 50A service (100A @ 120V) has more than 2.

Dave

JDWeir · 02-23-2013, 10:09 PM

If the labels are correct, looks like I would have 2 duplex circuits and I have a 50 amp service.

Disclaimer: I have not checked this by turning off the breakers to check each circuit.

garbonz · 02-23-2013, 10:18 PM

I'll look tomorrow. I'm guessing two that go to plugs.

Iggy · 02-23-2013, 10:23 PM

Quote:

Originally Posted by Dave_Monica

I have a question for those that have 50A service in your camper. How many 120V AC circuits are wired in the camper? Hopefully, the answer is more than 2 circuits.

Dave

Everything to the left of the main breaker is on 1 of the 120 volt circuits.
Everything on the right of the 50 amp is on the other 120 volt circuit.

dalford · 02-23-2013, 10:38 PM

Quote:

Originally Posted by Dave_Monica

What I'm trying to determine is the number of 120V circuits for the duplex plugs for coffee maker, heaters, etc. Our camper with 30A service has 2 such circuits...I was wondering if a camper with 50A service (100A @ 120V) has more than 2.

Dave

Dave, I'm assuming a TT is much like a boat in wiring. I have had several boat with 50amp connections. The 50 amp is supplies at 220volts. The 220 volts comes into the boat on leg A and leg B. Each leg is 110 volts at 25 amps. Each leg, A and B, will have a main breaker (25 amp) and then under each leg will be the separate 20 amp 110v breakers for each circuit.

Refer to 38FL drawing. Between the 2 hot legs is 220 volts but from neutral to each leg is 110 volts. Each 110 volt leg is at 25 amps.

The problems always arise in how the legs are wired. To many high draw items on one leg (hot water heater, a/c, blow dryer, electric stove) will trip the breaker on that line.

So, I guess I am saying you can many duplex sockets on each leg but it depends on what you plug in will determine if it pops the breaker.

Also, still only 50 amps total, 25 amps each 110 leg. Hope this helps..

Just for future reference Amps = watts/volts. So a 1100watt hair dryer draws on a 110v line.

dalford · 02-23-2013, 10:40 PM

Quote:

Originally Posted by Iggy

Everything to the left of the main breaker is on 1 of the 120 volt circuits.
Everything on the right of the 50 amp is on the other 120 volt circuit.

Dave, if you notice on Iggy's post the 50 amp breaker is actually two 25 amp breakers ganged together.

BarryD0706 · 02-23-2013, 10:47 PM

Dalford,
wrong. There are two 50-amp circuits. Not 25. Haven't you ever looked at a campground 50-amp service box?

Dave, there are about 8 breakers in my TT, so about 8 circuits. Not sure if they're split evenly across the two 120 lines or not.

Iggy · 02-23-2013, 10:59 PM

Quote:

Originally Posted by dalford

Dave, if you notice on Iggy's post the 50 amp breaker is actually two 25 amp breakers ganged together.

No they are two 50 amp breakers.
One for each hot 120 volt leg

dalford · 02-23-2013, 11:03 PM

Quote:

Originally Posted by BarryD0706

Dalford,
wrong. There are two 50-amp circuits. Not 25. Haven't you ever looked at a campground 50-amp service box?

Dave, there are about 8 breakers in my TT, so about 8 circuits. Not sure if they're split evenly across the two 120 lines or not.

Haven't really paid attention to them since mine is a 30 amp but I am pretty sure it is still just a bigger connector with 4 conductors. Two 120 volt, 25 amp legs, neutral and ground.

I guess if it is a 100 amp they should call it 100 amp. When you rent a site they ask, do you need 30 amp or 50 amp. Not 100 amp.

My boat has 2 legs at 30 amps each. Each leg has about 8 breakers on them. When I connect to 50 amp pedestal with my T I end up with 25 amps on each leg at 110 volts each.

Barry, look at your 50 amp breaker and see of it is two 50 amp breakers ganged together or two 25 amp breakers ganged together.

dalford · 02-23-2013, 11:05 PM

Thanks Iggy's, I guess boats are different than RV.. I am surprised though...

Dave_Monica · 02-23-2013, 11:13 PM

Thanks for the replies. I would have hoped that they would have wired 4 circuits (2 on each leg) for outlets for appliances but it doesn't appear so.

Dave

dalford · 02-23-2013, 11:18 PM

Learn something new each day. I was wrong about the amps on each leg but did find an excellent article that is good reference for rv electrical wiring in general..

RV Electrical Systems

RodeoGeorge · 02-23-2013, 11:52 PM

While we're on the subject of inputs to the RV, I just ran across this Surge Protector comparison, and it was an eye opener.

It appears to me that for 50 Amp service, the Progressive Industries is a clear winner. And this site had the best price I could find also.

RV Surge Protector Comparison

RodeoGeorge

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