I have dedicated line with a double pole 30amp breaker i want to use for a dryer. This size breaker requires a minimum of a 10 gauge wire so this wire used would be a 102 with ground.

Hx 0905 Home Electrical Wiring Diagram 220 Download Diagram
Dryer outlet wiring diagram. This circuit originates from the breaker box containing a 2 pole 30 amp breaker. The black wire line a phase and the red wire line b phase supply the 240 volts. The line was not in use and does not have an outlet it is a 3 wire line whiteblack and bare copper wire. Youll want to get your electrical tester out of your toolbox to check the outlet. In the to the right a 3 wire 10 awg nm cable supplies 240 volts from the electrical panel to the dryer receptacle outlet box. The ground connection is shown in this diagram.
Before 1996 electric dryers were supplied by a dedicated circuit that had three conductors. The white wire supplies neutral to the dryer receptacle. This is a newer version of the outdated 30 amp receptacle appearing in the previous diagram. Dryer outlet wiring project. This circuit is used for a new clothes dryer outlet installation. This receptacle has a ground connection not found in the older 30 amp circuit for added protection against electrocution.
There was no dedicated ground slot on the receptacle outlet and dryer cords had no ground wire or ground prong. Two hot wires and the third contained both ground and a neutral wire. This system worked pretty well and is still in use in many homes today but there is more potential for electrical. Wiring a dryer outlet electrical question. I need help wiring a 240volt outlet for a dryer. 3 prong dryer outlet the 3 prong wiring diagram above shows the proper connections for both ends of the circuit.
After making the installation you can test a dryer outlet by using a multimeter. Wiring diagram for a 30 amp dryer outlet. Go to the circuit breaker or fuse panel and turn on the circuit to the dryer outlet. You may have a voltage tester as well which works wonderfully.