If the 12 gauge wire was wired for 240v then fuse is necessary for both hot wires. But there are two different outlet styles and plug in cord styles used for these 240 volt electric dryers.

Stove Plug Wiring Diagram 240v H1 Wiring Diagram
3 prong 240v plug wiring diagram. When replacing a three prong plug connect the black wire in the cord to the brass terminal screw the white wire to the chrome terminal and the green or bare wire which is the ground wire to the green ground screw in the plug. Lightweight indoor cords may be 16 gauge but these usually have two prong polarized plugs instead of three prong ones which means they dont have a green ground wire. Youll generally find the wire gauge marked on the cord sheathing or on the plug. I tested the lines with a multimeter and the voltage between the white and bare copper wire is 120v 120v between the black and cooper and 240v between the white and black. So that we attempted to get some good 3 wire 220v wiring diagram photo to suit your needs. Making a dog bone adapter for my 4 plug 240v generator to run 3 wire 120v 30 amp.
I bought a 3 prong 240volt outletthe instructions say to hook up the white wire to the l shaped prong and the two hot wires to the 45 degree prongs. Three prong plugs have a hot wire a neutral wire and a ground wire. A 14 gauge cord is suitable for indoor appliances and indoor or outdoor lights. All 4 prongs are locking. The danger isnt fire. The key is to make sure you connect the wires to the proper terminals in the plug.
208v single phase and 208v 3 phase oem panels pertaining to 3 wire 220v wiring diagram image size 486 x 342 px and to view image details please click the image. Learn how to successfully wire a 3 prong locking connector to a power cord by following these easy steps. An electrical problem involving a 240 volt outlet a 240v single phase plug or 240 volt plug wiring is not something you can ignore. Honestly we also have been noticed that 3 wire 220v wiring diagram is being one of the most popular subject at this moment. To see if a cord is working properly plug it into a three prong receptacle. The testers lights will indicate whether the wires are hooked up correctly and the cord is grounded.
Some have three slots designed to accept appliance cords with three prongs while other outlets have four slots designed to accept four prong cords. Where to turn for easy 240 volt outlet and 240 volt plug wiring solutions. 3 prong generator outlet wiring. Then fit a plug in circuit tester onto the cords other end. Panel wiring diagram 24 plug 3 4 prong cords 120 240 volt 15 plug and cord 1 pole 1 power design inc. Reassemble the replacement plug and tighten the screws holding it to the cord.
The worry is that a miswired plug poses a fairly serious shock hazard. All 3 prongs are rounded. Besides being a major inconvenience there is a marked fire hazard and it can quickly develop into an emergency situation. Wire a plug to maintain correct polarity. Wiring a new plug isnt difficult but its important to get the hot and neutral wires connected to the proper prongs.