A NEMA 5-20 plug is a standard 3 prong plug. It wires the same as a NEMA 5-15 plug (Ground wire to the "D" contact, Hot to vertical terminal and neutral to the horizontal terminal (with the Ground terminal either at the top or bottom)).
A 5-20P plug has the neutral blade rotated 90°. The 5-20R receptacle usually has a T-shaped neutral hole, to accept both 5-15P and 5-20P plugs.
If there is no ground wire connect the ground wire to the neutral wire.
On a 3 wire plug (NEMA 5 configuration, 125v 2 pole 3 wire grounding) the narrow blade is the "hot" lead, the wide blade is the neutral lead, and the U shaped prong is the equipment grounding conductor (EGC). Most 2+G non-metallic-cables (NMC) are color coded for Black = "hot", White = neutral, and Bare = EGC
Go to this site http://www.generatorjoe.net/html/nemaplugs.html and tell me what configurations you have and I might be able to help you.
On a 240 volt outlet, such as a dryer outlet: G is Ground, W is Neutral, X and Y are the two Hot legs.
If you are refering to a wall receptacle, the one on the right is the hot side. The left side is the neutral and it's slot is larger that the hot one. The U shaped on the bottom is for the ground pin of the plug.
Need to know the amperage rating of the plug or the NEMA configuration of the plug and receptacle
A device that needs a 30 amp 3 prong plug requires a NEMA 10-30 plug.
The two main types of 3-prong dryer plugs available in the market are the NEMA 10-30 and NEMA 10-50. The NEMA 10-30 plug has three flat blades, while the NEMA 10-50 plug has two flat blades and one L-shaped blade. These plugs are designed for different voltage and amperage requirements.
Yes, there are two common types of 4-prong dryer plugs: NEMA 14-30 and NEMA 14-50. The NEMA 14-30 plug is used for dryers that require 240 volts and 30 amps, while the NEMA 14-50 plug is used for dryers that require 240 volts and 50 amps. It is important to use the correct plug type for your specific dryer.
A device that uses a 3 prong 30 amp plug requires a NEMA 10-30 electrical outlet.
A device that uses a 4 prong 30 amp plug requires a NEMA 14-30 electrical outlet.
A device that uses a 50 amp 3 prong plug requires a NEMA 6-50 electrical outlet.
The 6-20 is a designation for a 20 amp circuit. Most homes have receptacles rated for 15 amps. The cord is designed so that you cannot plug it into a 3 prong 15 amp outlet for safety purposes. The wire, fuse or circuit breaker as well as the receptacle must be properly rated so you don't burn your house down. Proper inspection and possible rewiring to the power panel is needed to operate it safely.
For most standard two-prong plugs, there is no difference in which prong goes into which outlet. The prongs are typically the same size and shape, so it does not matter which way you plug it in. However, if the plug is polarized (one prong is wider than the other), make sure to plug it in the correct way according to the outlet.
No you can not you will need to replace the plug with a 4 prong the same as the style of your oven and change your breaker to the correct Amp for your style of 4 prong plug
Ground wire
The different types of 240v plug types available for electrical appliances include NEMA 6-15, NEMA 6-20, NEMA 14-30, and NEMA 14-50.