The second wire completes the circuit by connecting to the house neutral wire in the switch wiring box instead of in the outlet wiring box. The other terminal is for a second hot wire called a switch leg that runs only between the switch and the light fixture.
Wiring Switch Leg Diagram Diagram Base Website Leg Diagram
How to wire a switch leg. How to wire a light switch. Three phase electric motors use three different electric legs with a 13 cycle lag between them. The motors starter wires directly to the motors wire terminals. In a switch loop this is not how its done. The switch leg is still made up of two wires but the hot wire connects directly to the switch and the two wires connect directly to the outlet. Before you start go to the main breaker box in your home and switch off the circuit that.
This is how 90 of switches are wired. Mark the white wire with a black marker or black tape near the ends of the wire this white wire with black tape must be used as a hot feed from 1 to 2 not the switch leg from 3 to 4. The switch leg loopdrop duration. The old method of a 2 wire drop is explained along with the current code requirements of using a 3 wire cable. Step 2 prepare wiring from breaker box. Step 3 connect light.
One screw terminal is for the hot wire that feeds the switch from the power source. Terry peterman 156048 views. The ground screw is for the circuit ground wire connection. When the motors switch is turned on voltage flows through the contactors coil creating a magnetic field. Episode 13 schematics how a switch loop works duration. This shows wiring a light switch when the power comes into the light outlet first.
The switch leg brings power to the fixture when the switch is turned on. This entry was posted in indoor wiring diagrams and tagged do it yourself handyman handywoman home electrical home improvement home renovations home wiring house wiring how to wire a light switch light light switch power switch switch leg wiring wiring diagram. To use three phase electricity a motor needs windings spaced 120 degrees apart. A three phase motors large size and high starting torque usually limit its use to industrial settings. Motor starters have a set of contactors. Clip and strip the wires that lead from the breaker box to the switch.
Normally we would run a hot and neutral to a switch box then run a switch leg and neutral up to a light. How to wire a 2 conductor switch leg step 1 shut off power.
Gallery of How To Wire A Switch Leg
