A comparison of the 4 prong 50 amp plug and the 3 prong 30 amp plug And the positive wire has been stepped down to using only 30 amps at the pedestal. This is because all electrical services need a neutral and a ground wire. So when you plug your 4 prong 50 amp power cord into a 3 prong 30 amp service, what happens? Well obviously, one leg of power has been taken away. This means that a 50 amp RV electrical service can run devices that total up to 12,000 watts of power simultaneously.Īnd in the real world that means that you can run a lot of devices and appliances without overloading the service. If we multiply that by 50 amps that each leg can carry, that leaves us with 12,000 watts. So two legs of 120 volts equals 240 volts. In other words, the wattage figure that you get tells you how much power can be consumed at one time safely.
And if you multiply the amps by the total volts, you get the total power available to you in watts. And because wires that are rated to carry 50 amps are large, the cord becomes very heavy.Įssentially, you have 2 legs of 50 amp electrical service going into the RV. That makes up all four prongs on the plug. Then there is also a neutral wire and a ground wire. So what does all those prongs do? And why is the cord so heavy?Ī 50 amp RV electrical service comes with 2 wires that are rated to supply 50 amps of power to the RV. And at the end of that cord you have a 4 prong 50 amp plug. If you have an RV with a 50 amp electrical service it means that you have a thick and heavy electrical cord. A 50 Amp RV Electrical Service – What Does It Mean?
50 TO 30 AMP RV ADAPTER FREE
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Actually, there is confusion when any adapter is used to adjust the electricity provided to an RV.īut in this article we will discuss whether or not you should use a 30 amp to 50 amp adapter. There is often confusion about what happens when you try to use a 30 amp to 50 amp adapter (sometimes called a “dogbone”) at a campground pedestal.
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