![]() However, if you use it for more than one appliance and the total amperage exceeds 15 amps, it will trip. ![]() If you use the step-up transformer to power individual appliances, it will be suitable. It is not a problem for low amp devices and using the list of items in the table above, and only the air conditioner draws more than 30-amps at start up. If the voltage increases, the amps will decrease by a proportionate amount therefore, if the RV has a 110V, 30-amp power supply, a step-up transformer will produce a 220volt, 15 amp supply. It is reflected in the formula Power= Volts* Amps. The problem with a step transformer is that it is impossible to create or destroy energy. Purchase a "step up" transformer to convert the current without going through the extensive work needed to convert the system. There are three possible methods you could consider using. If you have some high draw appliances (such as an air conditioner) that you want to use in the RV, it is possible to convert the 110-volt circuit to 220 volts. Can A 30-amp RV Be Upgraded To A 220 Volt Circuit? If the above appliances are on a single circuit in the RV, they will draw 50-amps which would trip a 30-amp circuit. The problem is that the amps that are drawn accumulate across all of the devices therefore, using this table, if the following devices are used simultaneously, the amps drawn would exceed the system limits, and the breakers will trip. The following table lists the typical appliances in an RV and the estimated power (amps) requirement.Īfter seeing the list, you may be asking what all of the fuss is about as no appliance in this list draws more than 21 amps, and therefore surely a 30-amp circuit would be sufficient. In most instances, a 110 volt, the 30-amp circuit is sufficient for an RV however, certain appliances have higher draw requirements, and if you want to use them in your RV, you will need to modify the electrical installation. Appliances Which Need A 220 Volt, 50-amp Circuit If your RV camper has a 30-amp 110 volts service, it is important that you be aware of the fact and only use appliances rated for 110 volts. A second 110-120 volt hot (live) wire (L2).The connection on an RV equipped with a 50-amp service delivers two feeds of 110 volts each (220V total) and has four prongs. When combined in a 50-amp circuit plug, it results in 220 volts. To deliver 220 volts to the RV, a second live wire is included in the bundle.Įach live wire carries 110 volts which are 180 degrees out of phase with each other. The plug on an RV with a 30-amp plug, which delivers 110 volts, has three prongs. You Can Tell The Voltage On The RV By The Design Of The Plug. Whereas many other countries use 220 volt/ 240volt systems, the standard voltage in American electrical systems is 110 volts. If the plug and socket in your RV are labeled as 30-amps, it will accept a voltage of 110 volts. What Voltage Does A 30-amp RV Plug Need? Having spent a good part of my life traveling in RVs in different parts of the world, I have worked out what works and the easiest way to tell what the combination is in America. A higher amperage circuit gives the RV owner greater flexibility because the amps which each appliance draws accumulate and very quickly exceed the capability of the circuit, which will cause it to trip. The RV parks offer two connection points, one is 110 volts at 30-amps, and the other is 220 volts at 50-amps. While you can use a converter plug to connect a 50-amp circuit to a 30-amp circuit, it is not wise to connect a 30-amp circuit to a 220 volt, 50-amp circuit.Īmerican electrical supplies are all 110 volts as standard. So how do you work out which socket to plug it into? Do you swallow your pride and ask another camper, or is there a way to work out the correct connection?Ī 30-amp RV plug will only work on a 110-volt circuit because it only has three prongs, and on a 220volt, a 50-amp circuit has four prongs. ![]() The plug states 30-amps, but the power supply reads 220 volts. It is confusing when you see more than one plug to connect your RV up to the electrical supply.
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