What NEMA receptacle is this?

[FTG-05]

This is a pic of a friend of mine's RV electrical plug. He said it was 125 VAC at 30 amps. He left this morning, so I can't relook at the recept nor take another pic.

I want to put the same recept in my shop so he can hook up to 30 amp service while he is here.

Thanks for the help.

 

[rabakoe]

Looks like a NEMA TT-30, or a travel trailer 30 amp receptacle. It's fairly common.

 

[wyliesdiesels]

Yup tt-30

 

[metaleltr]

If he doesn’t need the whole 30 amps adapters are quite common.

 

[FTG-05]

Yup tt-30

Looks like a NEMA TT-30, or a travel trailer 30 amp receptacle. It's fairly common.

Got it, thanks!!!

Any reason it's not on the NEMA charts????

 

[FTG-05]

If he doesn’t need the whole 30 amps adapters are quite common.

And that's exactly what we did; used the adapter, then plugged into a standard 20 amp outlet.


So 2nd Question:

Is this the standard RV outlet or are there more. Or another way of saying it: If I install one of these, will most RVs be covered?

Thanks,


Shoulda prolly posted this over on a RV forum.....

 

[FTG-05]

And here it is over on the HD site:

 

[rabakoe]

TT-30 will cover a good portion of the RVs on the market. Next step up is the 14-50 which is a 230v 50amp plug. You'll be seeing a lot more of these as RVs get bigger and more power hungry.

 

[Norcal]

TT-30 will cover a good portion of the RVs on the market. Next step up is the 14-50 which is a 230v 50amp plug. You'll be seeing a lot more of these as RVs get bigger and more power hungry.

It is a 125/250V dual voltage device, there are no 240V loads in a RV, all loads are 120V.

 

[u2slow]

It is a 125/250V dual voltage device, there are no 240V loads in a RV, all loads are 120V.

True in smaller RVs. Larger RVs with AC typically include 240V in their 'shore-power' hookup.

The L5-30 twist lock seems to be getting more common than the TT-30 these days. Probably an attempt for a common hookup with boats, RVs, and smaller generators.

 

[Kevin Essiambre]

True in smaller RVs. Larger RVs with AC typically include 240V in their 'shore-power' hookup.



The L5-30 twist lock seems to be getting more common than the TT-30 these days. Probably an attempt for a common hookup with boats, RVs, and smaller generators.

Usually large RV's with a 14-50 have 2 air conditioners. I have never seen an RV with any 240 volt loads.

Common campsite RV receptacles:
5-20
30-TT
14-50
There's no guarantee that there's going to be one of these at the lot you get though. I like the spots with all three.

Any other receptacles an RV uses needs an adapter.

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[Norcal]

True in smaller RVs. Larger RVs with AC typically include 240V in their 'shore-power' hookup.

The L5-30 twist lock seems to be getting more common than the TT-30 these days. Probably an attempt for a common hookup with boats, RVs, and smaller generators.

There is 240V supplied but no 240V loads, everything is 120V.

 

[wyliesdiesels]

True in smaller RVs. Larger RVs with AC typically include 240V in their 'shore-power' hookup.

The L5-30 twist lock seems to be getting more common than the TT-30 these days. Probably an attempt for a common hookup with boats, RVs, and smaller generators.

yes they have 120/240v in their shore power hookup but tell me which loads are 240v?

 

[u2slow]

yes they have 120/240v in their shore power hookup but tell me which loads are 240v?

I wouldn't know. The 120/240 50A plug seems to show up on the bigger RVs with AC. The voltage of the equipment itself would be up to the manufacturer, or what the owner decides to install.

 

[Kevin Essiambre]

I wouldn't know. The 120/240 50A plug seems to show up on the bigger RVs with AC. The voltage of the equipment itself would be up to the manufacturer, or what the owner decides to install.

There are no 240 volt loads. All the A.C. units are 120 volts. If you install 240 volt air conditioners, you wouldn't be able to run them at all using a cheater to use a 120 volt receptacle.

An RV with a 30-TT usually has one AC that draws something like 13 amps at 120 volts. If you're not using anything else in the RV except the AC, you could usr a 15 amp receptacle (I've seen it but don't recommend it, but it is possible).

An RV with a 14-50 usually has 2 AC units that both draw something like 13 amps at 120 volts. With a cheater cord to 30-TT you van run 1 AC with not much else running.

Add in some other loads and that's why you need more power on the larger RV's.

Gotta remember, some refrigerators will switch from propane to electric when plugged into power.

There's a microwave too that will be about 15 amps at 120 volts.

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[u2slow]

There are no 240 volt loads. All the A.C. units are 120 volts. If you install 240 volt air conditioners, you wouldn't be able to run them at all using a cheater to use a 120 volt receptacle.

An RV with a 30-TT usually has one AC that draws something like 13 amps at 120 volts. If you're not using anything else in the RV except the AC, you could usr a 15 amp receptacle (I've seen it but don't recommend it, but it is possible).

An RV with a 14-50 usually has 2 AC units that both draw something like 13 amps at 120 volts. With a cheater cord to 30-TT you van run 1 AC with not much else running.

Add in some other loads and that's why you need more power on the larger RV's.

Gotta remember, some refrigerators will switch from propane to electric when plugged into power.

There's a microwave too that will be about 15 amps at 120 volts.

Good info. Things have changed since my boss's '78 GMC motorhome Don't see many RVs beyond the 120v/30A hookup in these parts.

 

[Kevin Essiambre]

Good info. Things have changed since my boss's '78 GMC motorhome Don't see many RVs beyond the 120v/30A hookup in these parts.

Things are always changing. Only reason i know about all this is from camping while growing up, And asking a ton of questions along with Google. No reason, just like to know random facts.

An RV with the 14-50 can also have a central vacume, a washer/dryer combo, And many other things you'd never think of, hence the power requirements.

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[wyliesdiesels]

I wouldn't know. The 120/240 50A plug seems to show up on the bigger RVs with AC. The voltage of the equipment itself would be up to the manufacturer, or what the owner decides to install.

The point is, there are no 240v loads in an RV...

 

[AntonLargiader]

The point is, there are no 240v loads in an RV...

... in the US. It's outside the scope of this TT-30 discussion, but the same companies make "international" models that [logically] run on 240V.

 

[Norcal]

... in the US. It's outside the scope of this TT-30 discussion, but the same companies make "international" models that [logically] run on 240V.

RV's outside the US & Canada are not part of this discussion, since the 30A 125V TT receptacle would not be used internationally.

 

[AntonLargiader]

RV's outside the US & Canada are not part of this discussion, since the 30A 125V TT receptacle would not be used internationally.

Isn't that what I said?

 

[Norcal]

Isn't that what I said?

Not really, since you brought up voltages outside the US.

 

[HenryAZ]

Good info. Things have changed since my boss's '78 GMC motorhome Don't see many RVs beyond the 120v/30A hookup in these parts.

We have three of those set up on our property, for the several places my wife chooses to park her 1992 Class C motorhome. I use an exterior box with a waterproof cover on them. They will allow the cord to dangle out through a hole in the bottom of the cover when in use.

 

[ptgarcia]

If you're wiring up something new I would wire the 50 amp plug, then use an adapter for the lower power plugs.

 

[Kevin Essiambre]

If you're wiring up something new I would wire the 50 amp plug, then use an adapter for the lower power plugs.

If you're doing that, I would use one of these.

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[ptgarcia]

I had something similar installed on my last house. Plugged my travel trailer in when I had it at home, and the 15-amp receptacles came in very handy.

 

[Kevin Essiambre]

I like the ones with space for a couple extra beakers. It allows you to add stuff such as a pole light or something if you install it on a post rather than the building.

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[FTG-05]

If you're doing that, I would use one of these.

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$188. No thanks, I'll keep it simple.

 

[FTG-05]

If you're wiring up something new I would wire the 50 amp plug, then use an adapter for the lower power plugs.

Is this the correct 50 amp 125 vac outlet for RVs?

https://www.homedepot.com/p/Leviton...w-Single-Outlet-Black-R10-00279-S00/300324414

 

[FTG-05]

Yea, according to this, it is:

https://www.amazon.com/dp/B075RMXXF1/?tag=atomicindus08-20

 

[wyliesdiesels]

Is this the correct 50 amp 125/250vac outlet for RVs?

https://www.homedepot.com/p/Leviton...w-Single-Outlet-Black-R10-00279-S00/300324414

Fixed it for you.

 

[FTG-05]