![]() once the batteries are charged, trickle charging uses far less power). For example, one air conditioner and the microwave, but not also the battery charger (on bulk charge, which draws lots of power. That generally means you can run up to 2 large-draw simultaneously. Hi Mike! Congrats on your RV upgrade! When you dog-bone a 50-amp RV down to a 30-amp connection, you can then think of yourself as being back in a 30-amp RV, with the same amount of power available as you used to have. We regularly use dogbone adapters and we consider them to be necessary RV electrical supplies for every RVer’s toolkit. (See the RV adapter section of our RV power cord post for further details on adapters.) The same, of course, is true if you’re using a lower power extension cord. You need to be sure not to use more than 3,600 Watts or 30-amps of power when using a 30-amp adapter. So, while you can plug your 50-amp RV into a 30-amp power pedestal using an adapter, you won’t be able to power everything you typically power using a 50-amp service. So, if you use a 30-amp adapter with a 50-amp RV, you’ll still be limited to 3,600 Watts of power. ![]() It’s important to know, however, that even with an adapter, 30-amp RV service will only receive the 3,600 Watts of power it can handle. You can (and sometimes may need to) use an adapter for your RV depending on the power supplied at the power pedestal or home where you’re plugging in. Can I Use an Adapter at a Campground Power Pedestal? So, each of these two parts of the plug offers a separate 50-amp/120V connection. (Although 240V for use with an electric drier isn’t uncommon in very high-end motorhomes… that circuit would be wired to combine the 2 120V legs into a single 240V supply, just for the dryer.) With these four prongs plugged into a power pedestal, 50-amp service going to your RV provides two 120V legs of 50 amps each, one shared neutral wire, and one ground wire.Įven though a 50-amp power plug or RV receptacle is capable of providing 220/240V AC power, RVs are typically wired to use each of the two 120V AC lines to provide power to half of the RV, splitting the loads between them. Is a 50-Amp RV Outlet 120 or 240?Īs we noted earlier in the post, a 50-amp RV plug has four prongs. So, the difference between 30-amp power and 50-amp power is technically 8,400 Watts (12,000W – 3,600 W). And it’s not just the difference between 30 and 50.Ī 50-amp connection provides significantly more power than just the difference between 50 amps and 30 amps. So, here’s the technical difference in terms of power provided. It may also have a 3-way RV fridge while a larger rig like ours may have a residential fridge. A Class B RV certainly wouldn’t have a washer & dryer, but it probably has a small microwave. So, for example, a Class B RV may have a single small AC unit while a 43’ motorhome has two (or 3) HVAC units. ![]() ![]() The difference, in terms of the plug provided by the RV manufacturer, is in how much power everything in the rig requires. Each prong corresponds with one of three wires: 0ne 120V hot wire, a neutral wire, and a ground wire. But larger RVs like ours have a 50-amp plug. What Is the Difference Between a 30-Amp RV Plug and a 50-Amp RV Plug? The receptacle for the 50-amp power plug is on the far left. ![]()
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