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05-31-2020, 08:13 PM
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#1
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Member
Join Date: Jan 2018
Location: Richmond
Posts: 91
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50 amp to 30 amp
jayco 2018 29w with 30 amp capability. When I have a 50amp pedestal option I use it with a 50amp to 30amp dog bone. Is this safe?
Thanks
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05-31-2020, 08:19 PM
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#2
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Site Team
Join Date: Apr 2012
Location: Newark, NY
Posts: 15,883
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Quote:
Originally Posted by Bduck100
jayco 2018 29w with 30 amp capability. When I have a 50amp pedestal option I use it with a 50amp to 30amp dog bone. Is this safe?
Thanks
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Yes it is. We've had to adapt to 30 amp many times. A priceless adapter to have on board.
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05-31-2020, 08:23 PM
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#3
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Senior Member
Join Date: Jul 2016
Location: Mapleton
Posts: 4,363
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An adapter is recommended as 30 amp gets used more and may be worn out while 50 amp is still in good shape. Or if you have to share a pedestal for some reason. Some prefer the 50 as more likely to be in better condition anyway. I also carry a 15 to 30 so I can work off a drop cord at relatives house to keep the battery up.
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05-31-2020, 09:08 PM
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#4
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Senior Member
Join Date: Apr 2016
Location: Kingman AZ and where our Seneca is today.
Posts: 3,118
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Read the actual technical code, Electrical Code NEC/NFPA 70 240.4.(D)(7) and make your own decision. You will be supplying one of the 50A circuits to a single #10 conductor.
http://www.cooperindustries.com/cont...Protection.pdf
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05-31-2020, 09:21 PM
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#5
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Senior Member
Join Date: Apr 2016
Location: Kingman AZ and where our Seneca is today.
Posts: 3,118
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Just because these adapters are for sale... does not mean that they are safe.
If you decide to use these two adapters and your RV burns to the ground - don't expect to have the Insurance cover it.
This will connect your #16 ga extension cord into a 50A circuit to power your stuff.... unless it catches on fire.
__________________
Steve & Stacy with Jasper (Australian Cattle dog)
2015 Seneca 36FK
Custom 27' flatbed trailer hauling:
07 Toyota FJC & Yamaha Kodiak 400 ATV
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05-31-2020, 09:27 PM
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#6
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Lost in the Woods
Join Date: Apr 2019
Location: Ocean County
Posts: 2,807
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Quote:
Originally Posted by SloPoke
Read the actual technical code, Electrical Code NEC/NFPA 70 240.4.(D)(7) and make your own decision. You will be supplying one of the 50A circuits to a single #10 conductor.
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A #10 conductor is rated for a 30 amp circuit. When you step down the double 50 amp into a single leg 30 amp, this is exactly what the OP's 30 amp rig runs on, so I don't see any problem.
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05-31-2020, 09:37 PM
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#7
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Lost in the Woods
Join Date: Apr 2019
Location: Ocean County
Posts: 2,807
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Quote:
Originally Posted by SloPoke
Just because these adapters are for sale... does not mean that they are safe.
If you decide to use these two adapters and your RV burns to the ground - don't expect to have the Insurance cover it.
This will connect your #16 ga extension cord into a 50A circuit to power your stuff.... unless it catches on fire.
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I think you're going the wrong way with your adaptors, it would go like this:
First, 50 amp female to 30 amp male:
Then, a 30 amp female to 15 amp male, to plug into a 115 volt extension cord:
Doing it this way, the maximum draw would be whatever the 115 volt line on the house can provide (15 or 20 amp). If he tried to fire up multiple appliances (using the normal 50 amp circuits) in the rig, it would probably pop the circuit breaker in the house.
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05-31-2020, 09:45 PM
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#8
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Member
Join Date: May 2018
Location: PNW
Posts: 67
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Quote:
Originally Posted by SloPoke
Just because these adapters are for sale... does not mean that they are safe.
If you decide to use these two adapters and your RV burns to the ground - don't expect to have the Insurance cover it.
This will connect your #16 ga extension cord into a 50A circuit to power your stuff.... unless it catches on fire.
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It will only do that if you have a 50 amp main breaker on your coach.
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06-01-2020, 05:44 AM
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#9
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Senior Member
Join Date: Nov 2016
Location: San Antonio
Posts: 2,929
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Quote:
Originally Posted by SloPoke
Just because these adapters are for sale... does not mean that they are safe.
If you decide to use these two adapters and your RV burns to the ground - don't expect to have the Insurance cover it.
This will connect your #16 ga extension cord into a 50A circuit to power your stuff.... unless it catches on fire.
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Are there any other UL approved devices that if used correctly will void your insurance? That seems like a great trap by insurance companies. Use a listed device exactly as intended and have your insurance voided.
But then if you use it as intended and your RV catches on fire you could sue the adapter manufacturer for a faulty product.
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06-01-2020, 06:11 AM
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#10
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Member
Join Date: Jan 2018
Location: Richmond
Posts: 91
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Full disclosure, I have a 50amp progressive industries surge protector and analyzer that is Always connected to any power source before I attach my 30amp coach cord to the power source. I had this surge protector before I bought this motor home. If I only have a 30amp power source I use a 30amp to 50amp from the pedestal to the surge protector then a 50amp to 30amp dog bone to motor home cord. If I have the option to use 50amp as seen in the attached photo I plug the 50amp surge protector directly into the pedestal then use a 50amp to 30amp dog bone to attach my 30amp cord to the motor home. Hoping not to over load any wires or circuits. Using camco adapters.
Thanks for all the input, as usual greatly appreciated.
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06-01-2020, 07:07 AM
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#11
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Senior Member
Join Date: Apr 2020
Location: Port Charlotte FL/Hinsdale MA.
Posts: 1,070
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Quote:
Originally Posted by SloPoke
Just because these adapters are for sale... does not mean that they are safe.
If you decide to use these two adapters and your RV burns to the ground - don't expect to have the Insurance cover it.
This will connect your #16 ga extension cord into a 50A circuit to power your stuff.... unless it catches on fire.
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The 30 amp will very much protect the RV from any damage. I gave up that technical fight years ago. It's only a 30' cord. The 30 amp breaker will trip long before any damage happens. You just have to turn a blind eye to some things in the NEC when It comes to RV's.
If some idiot uses a 16 ga cord than that is on them. Using the #10 30' cord is not a problem.
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Retired Master Electrician and Building Inspector.
2011 Keystone Sprinter 323 BH
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06-01-2020, 07:15 AM
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#12
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Senior Member
Join Date: Nov 2011
Location: Where ever the boss says we're going.
Posts: 16,071
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Quote:
Originally Posted by SloPoke
Just because these adapters are for sale... does not mean that they are safe.
If you decide to use these two adapters and your RV burns to theps ground - don't expect to have the Insurance cover it.
This will connect your #16 ga extension cord into a 50A circuit to power your stuff.... unless it catches on fire.
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Please provide proof for your Insurance senario. People cause fires in their houses every day using extension cords. Guess what...their insurance pays...
You plug your TV into a 15 or 20 amp circuit with a 5 amp fuse inside, but the cord is only rated for 5 amps.. You better disconnect all your appliances...
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06-01-2020, 07:30 AM
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#13
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Senior Member
Join Date: Apr 2020
Location: Port Charlotte FL/Hinsdale MA.
Posts: 1,070
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Quote:
Originally Posted by grumpy
please provide proof for your insurance senario. People cause fires in their houses every day using extension cords. Guess what...their insurance pays...
You plug your tv into a 15 or 20 amp circuit with a 5 amp fuse inside, but the cord is only rated for 5 amps.. You better disconnect all your appliances...
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Retired Master Electrician and Building Inspector.
2011 Keystone Sprinter 323 BH
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06-01-2020, 07:52 AM
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#14
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Senior Member
Join Date: Apr 2016
Location: Kingman AZ and where our Seneca is today.
Posts: 3,118
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Take a closer look at the two adapters... You can plug a #16 ga extension cord into the black adapter - and then plug that adapter into the Yellow 50A adapter. You now have a 50A breaker protecting all of these.
Protection of the wiring supplying your trailer is required at the supply side, not the load (appliance) side.
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Steve & Stacy with Jasper (Australian Cattle dog)
2015 Seneca 36FK
Custom 27' flatbed trailer hauling:
07 Toyota FJC & Yamaha Kodiak 400 ATV
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06-01-2020, 07:58 AM
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#15
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Senior Member
Join Date: Apr 2020
Location: Port Charlotte FL/Hinsdale MA.
Posts: 1,070
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Quote:
Originally Posted by SloPoke
Take a closer look at the two adapters... You can plug a #16 ga extension cord into the black adapter - and then plug that adapter into the Yellow 50A adapter. You now have a 50A breaker protecting all of these.
Protection of the wiring supplying your trailer is required at the supply side, not the load (appliance) side.
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yes you can do that but it takes a whole lot of stupid to do it and the 30 is still gonna protect it, no 50 getting that far.
Someone can do that to run a 3 amp refrigerator to get it cold for a trip and be very safe and not trip a thing and not overload the 16 ga cord.
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Retired Master Electrician and Building Inspector.
2011 Keystone Sprinter 323 BH
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06-01-2020, 07:58 AM
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#16
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Senior Member
Join Date: Nov 2011
Location: Where ever the boss says we're going.
Posts: 16,071
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Quote:
Originally Posted by SloPoke
Take a closer look at the two adapters... You can plug a #16 ga extension cord into the black adapter - and then plug that adapter into the Yellow 50A adapter. You now have a 50A breaker protecting all of these.
Protection of the wiring supplying your trailer is required at the supply side, not the load (appliance) side.
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The cord would burn not the RV...
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06-01-2020, 08:33 AM
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#17
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Senior Member
Join Date: Jun 2016
Location: Denver
Posts: 4,241
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Quote:
Originally Posted by Cavie
I gave up that technical fight years ago.
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06-01-2020, 09:02 AM
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#18
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Lost in the Woods
Join Date: Apr 2019
Location: Ocean County
Posts: 2,807
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Quote:
Originally Posted by SloPoke
Take a closer look at the two adapters... You can plug a #16 ga extension cord into the black adapter - and then plug that adapter into the Yellow 50A adapter. You now have a 50A breaker protecting all of these.
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Once again, you're going the wrong direction. Why would you reduce a 50 amp all the way down to a 15 amp, 115 plug to power a 50 amp rig? You'd have to adapt it back up to fit the 50 amp plug of the rig... Makes no sense.
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06-01-2020, 09:38 AM
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#19
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Senior Member
Join Date: Apr 2020
Location: Port Charlotte FL/Hinsdale MA.
Posts: 1,070
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some threads are just better backed away from 
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Retired Master Electrician and Building Inspector.
2011 Keystone Sprinter 323 BH
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06-01-2020, 09:55 AM
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#20
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Senior Member
Join Date: Jun 2016
Location: Newburgh
Posts: 6,307
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Quote:
Originally Posted by Grumpy
Please provide proof for your Insurance senario. People cause fires in their houses every day using extension cords. Guess what...their insurance pays...
You plug your TV into a 15 or 20 amp circuit with a 5 amp fuse inside, but the cord is only rated for 5 amps.. You better disconnect all your appliances...
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Many folks fear the "insurance" thing. I agree Grumpy - I'd like to see proof of a denied claim...
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