Now, let's take a look at the common plugs that can be used with generators. Locking prong, no L is a straight prong and plugs can be pulled out easily.TT in this case means travel trailer and is used for RVsĪfter the hyphen it is the amperage rating (electricity current) National Electrical Manufacturers Association It’s fairly easy to understand the designations. Moreover, they are grouped by single phase or three phase but with common generators we are most concerned with single phase which limits to what extent we really have to know about receptacles and plugs. The common plugs are rated for 125 V to 600 V and 15 Amps to 60 Amps. NEMA code helps in preventing hazardous combinations of amperage and voltage that can result in short circuits, electrocution, electrical fires and more. These codes were standardized for plugs and receptacles so it becomes easier for consumers to differentiate between variety of configurations of voltages and amperages. When you buy a new plug or receptacle it has a National Electrical Manufacturers Association (NEMA) code on it. *Voltage is more or less a measure of "force" pushing charge through something, it's sort of analogous to the pressure pushing water through the pipe. As a rule of thumb, if the plug has the same amperage rating it should yield the similar amount of wattage. You can compare the amperage rating of your plug to the rating mentioned in the NEMA code written on the replacement plug. Generally plugs are rated between the range of 240 and 1,800 watts for a 120 Volt 15 Amp circuit, the maximum wattage of a 15 Amp circuit is 1,800 watts.If you've doubts about the amperage rating of the plug, use the following pointers to determine the rating: You can figure out the wattage of any electrical appliance by multiplying its voltage with the amperage rating. Wattage is the amount of electrical power that your generator or any other electrical appliance consumes. This is important because the amperage rating directly contributes towards wattage production. It's sort of analogous to how much water is flowing through a pipe.* When you're looking to buy a new replacement plug, ensure that it has the same amperage rating as the old plug. 240 V plugs can deliver higher amounts of electricity and hence are used for heavy duty industrial applications, water pumps and generators.Īmperage is a measure of current, that's how much charge is moving through a component.110-120 V plugs are generally used for repairing common household appliances, pigtails and extension cords.Voltage is measured in Volts and is commonly denoted by the letter V. Voltage is the intensity or pressure of electricity produced by the power source such as battery, power grid etc. Let's start with the basic terms associated with power: This guide covers the technical basics that will help you learn about different types of generator plugs and receptacles so you can choose the right one. What type of plug or receptacle came with my generator? How do I identify the type and know if the replacement I buy will be compatible with my generator? With generous use of technical terms and abbreviations, manufacturers don't make it easy either for customers especially for those who are technically challenged.
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