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Electrical Discussion of preventative/corrective maintenance and other technical issues regarding your coach's electrical system.

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  #1  
Old 05-31-2008
iamflagman's Avatar
iamflagman iamflagman is offline
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Default Power Cords And Transfer Switch

It seems that there are different configurations of power cords that have eventually ended up in our 'Birds, some came from the factory and some were made up out of necessity by the previous owners and unfortunately especially for the NEWBY it can be very confusing, if there is no documentation that came with their new to them 'Bird. what I will try to do here is explain as best as I can the differences in the shore power cords and related equipment that came with my 'Bird and that I have ended up purchasing or making for my 'Bird.

My 'Bird came with a 50 amp power cord and it has "6/3 8/1 FOR MOBILE HOME USE" molded into the rubber covering, with the female twist lock end that attachés to the 'Bird and the 4 prong male plug that attachés to the 50 amp shore power receptacle, it also came with two 30 amp cords, with female twist lock ends that attach to the 'Bird and 3 prong male plugs that attach to the shore power 30 amp receptacle.



http://upload.pbase.com/iamflagman/image/91991466

I carry a 30 amp extension cord that I purchased at Wal Mart and I also built a 50 amp extension cord to carry with me.

http://www.pbase.com/image/97885543

Originally the two 30 amp cords were used to power the two separate sides of the breaker panel, or some people would connect the two 30 amp cords to separate 30 amp receptacles located close to each other, but I have removed the wiring for the two 30 amp receptacles on my 'Bird and now I use what is sometimes referred to as a DOG BONE adapter to attach my 50 amp electrical cord to a 30 amp campground receptacle.

http://www.tweetys.com/ProductImages...58404_silo.jpg

It splits the 30 amp so that it will power both sides of your breaker panel and they are available at most RV supply store and I have even seen them in the rv section of the automotive department at Wal mart, or you can purchase them online from places like http://www.tweetys.com/index.asp?Pag...OD&ProdID=7648

You will have to keep in mind that you will have to be more careful about power management when you use this, as it will not give you enough power on each leg to use everything, just look on your breaker panel and see what is locate on each side, to give you an idea of what you can use. I normally use my center roof airconditioner, the water heater and the battery charger and it seems to handle that load with no problem, however I have modified my 'Bird to operate the TV's, Satellite dish and receiver, two 14 inch fans and the microwave off of the inverter which is powered by eight Trojan golf cart batteries, the fans help to circulate the cold air.

I have heard of some 'Bird owners that have a longer extension cord made up similar to the adapter above, some with 50 amp style cords, or 30 amp style cords used with the appropriate ends attached.

Here is a source for the 50 amp female connector that goes into the 'Birds receptacle.
http://www.electric-supplier.com/pro...64_w324123.php
CONNECTOR: 600 VAC/250 VDC; 50 AMPERE; 3 POLE; 4 WIRE; GROUNDING; METAL SHELL; CORD SIZE 0.68 TO 1.125 INCH; APPROVAL UL, CSA; HART-LOCK[R] BRAND


RV Electric Service, Connections and Basic Information
Installing a 30 or 50-amp RV Electric Service Note: If you would like to install a SERVICE for your RV make sure you understand basic wiring. It is not that hard as long as you follow the rules.

Check out these posts by our forum members cheater precautions?? they can be found under Electrical
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  #2  
Old 05-31-2008
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Thanks John,

For posting all this good information,.

This is what Mike 757 needs to sort out his AC power connections.
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  #3  
Old 05-31-2008
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ahhh,good info and with PICs too!
thanks John.
Randy 93wb
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  #4  
Old 05-31-2008
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Ditto John, Good info; one of the tricks on my bird is a 35' cheater cord which has a 50amp female and a 30amp male plug. I use it 90% of the time since it seems I only hit 30amp service in the parks I land in.. I just leave the 2 30amp cords at home and carry my cheater and my regular 50amp cord.
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Old 06-15-2008
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Anybody tell me the pin-out for the coach end of the 50 A. cord (the 7764 connector)? The replacement plug is marked "X-Y-Z-Green" and "Z" is opposite to the outer ground tab.

The original was stolen.

Thanks--

M.R.Kane
1985 PT40
currently Sanger, TX
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  #6  
Old 07-05-2008
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Mr.Finn,
I like the job you have done on your BB the inside looks great. I also have a 82, but 33' Fc.I hope to start doing the inside soon. I also wanted you to know that I watched your slide show on 9/11. Makes you remmeber why we are where we are. God Bless
Thanks D.Dempsey
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  #7  
Old 01-16-2009
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Default 50AMP Shore Power Cord Repair/Replacement

Also check out 50AMP Shore Power Cord Repair/Replacement
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1982 FC35RB
I'm NO EXPERT, but I did stay in the FINN'S INN EXPRESS last night
HOPKINS, SOUTH CAROLINA
VISIT THE FINN'S INN EXPRESS REMODELING ADVENTURE AND TECH. TIPS
I'M SO SLOW ON THE HILLS,THAT I GET TO SMELL THE FLOWERS AS I GO BY.....AND WATCH THEM GROW TOO!! NOT SO MUCH ANYMORE
Visit the WILD HARE RACING website
REMEMBER 9/11
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  #8  
Old 10-28-2014
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This is very helpful information to me. I have a 1978 WanderLodge Bus and I have the cords but don't know the location of where to plug them in on the bus to hook up at an RV Park.

Can you help me?
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  #9  
Old 10-28-2014
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Cotton

Plug ins for 50 Amp cord and 30 Amp cords are on the roadside of your bus - same compartment as the water hookup, just in front of the left rear signal light. Small panel door with two bump outs to allow you to hook up water and power and close/lock door after hookups made.

Do you have the Blue Box with owners manual etc, etc - if not there are many documents on here that you can download and will save you many hours of grief and many dollars if you an do repairs yourself.
I will let others give you advice on power cords etc - I have only used my power cords two times. I mostly just boon-dock
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  #10  
Old 10-29-2014
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Quote:
Originally Posted by mrkane View Post
Anybody tell me the pin-out for the coach end of the 50 A. cord (the 7764 connector)? The replacement plug is marked "X-Y-Z-Green" and "Z" is opposite to the outer ground tab.

The original was stolen.

Thanks--

M.R.Kane
1985 PT40
currently Sanger, TX
Wow - thought this was an easy one - ended up taking a connector apart to make sure I didn't tell you wrong

X = 120V hot, red or black wire
Y = 120V hot, red or black wire
Z = neutral, white wire
G = ground, green wire

Usually neutral is labeled "W" or marked white or a silver colored terminal
Not always with this one
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