"L" shaped top blade, whereas the 14-50 has a straight centerīlade. ![]() Allowing for both 120/240 volts, the biggest differenceīetween 14-30 and 14-50 (besides the amperage) is that the 14-30 has an Non-locking devices used in electric clothes dryers or electric stoves, NEMA 14 devices are 4-wire grounding devices. There are several designation groups within NEMA. Is the most commonly found power outlet in houses in the U.S. Rating of the device, and is followed by an "R" for receptacle, orįor example: 5-15R is a 125V, 2-pole, 3-wire receptacle rated at 15 amps and The second number in the code indicates the amp A non-grounding device will be two-pole, two wire or Grounding type device will be described as two-pole, three-wire or four-pole,įive-wire etc. This includes the number of poles and wires and the voltage. The first number indicates the plugĬonfiguration. To be twisted and locked into the receptacle. ![]() The locking-type will have curved blades that allow the plug More industrial uses where a plug accidentally falling out of a receptacle isĪ bigger worry. In regular consumer electronics, whereas locking devices are reserved for There are two main classifications of NEMA power cord types. Mistakenly inserted into a 220 volt receptacle. That way, something that calls for 125 volts cannot be Different, non-interchangeable plug computer powerĬord types are created based on specific amperages/voltages, and are each givenĪ NEMA designation. NEMA devices range in amperages from 15-60,Īnd in voltages from 125-600. NEMA describes various connectors used on power cords throughout NorthĪmerica and some other countries. There are 2 basic groups of connector designations that we'll discuss here:Įstablished by the National Electrical Manufacturers Association (N.E.M.A.), This article willĬomprise of short introductions to concepts, followed by what will Information can get a little technical, so bear with us. ![]() This month is all about the ins and outs of power/extension cords.
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