The black line, on the other hand, is the hot wire and goes into the hot terminal, the one opposite the neutral terminal. The white wire is the neutral wire and switches into the neutral airport terminal, which is marked by silver/light-colored anchoring screws. Realize your wiresĪny time connecting electrical cabling to an outlet, it may be important to not confuse your wires or push them in the wrong airport terminal. Being equipped with the right tools will help you be prepared for anything throughout the electrical switch wiring process. They can include a multimeter, a non-contact voltage detector (tests the heat of wire without touching it) and a blend sheath and wire ma?e. Just like any other DIY job, you want to ensure you have the right tools to do the job. Once you let off of the STOP button the circuit is back to it's normal state with L1 waiting for the START button to be depressed.MUST-KNOW TIPS FOR DIY ELECTRICAL WIRING IN ADDITION TO SWITCHING 1. The relay contacts open to their normal state and stop the current flow to light. Now to turn the light off, you simply depress the STOP button and this will open the circuit to the relay, de-energizing the coil. Now that the contact below the START switch is closed and current can go around the start switch, you can now release the START switch and the current flow continues around the open START switch, through the contact to keep the relay coil energized which also keeps the light on. This allows current flow through the contacts and energizes the light. Now the (2) MCR contacts which are normally open as shown will now close. When the start switch is depressed, L1 is now hot to the relay coil MCR (Master Control Relay) and energizes the coil. In this case L1 is hot all the way to the "START" switch and the open MCR contacts. This means the current travels through that switch until it see's an open switch and cannot go any further. So as you can see, L1 goes down into a normally closed "STOP" switch. Let's just say we are using 120Vac household voltage in this diagram. Of course this is all based on not replacing the existing wiring that you currently have. Typically using the switch for the light and turning the fan on/off by the fan switch on the unit (pull chain). Chances are, you only have a 3-wire cable ran to the fixture so you would be limited to powering the ceiling fan & light both. Your existing light fixture was controlled by a switch and only one switch. This diagram is for those who are replacing a light fixture with a ceiling fan. When taking down your old fixture you will be able to see if you have the correct cabling. So instead of a 3-wire cable going to the fan, it must be replaced with a 4-wire cable. If so then a new wire must be ran to control the light as well. If this is the case, then odds are that this old ceiling light only has enough wires to switch off & on the fan or light. More often than not, you're going to have a ceiling light fixture at the location you are planning on installing a ceiling fan. Notice the black power wire in the light box is going to a white wire with electrical tape around it which means the white wire will be used as a power wire or black wire. Because of this, the wiring must be re-color coded in order to get the conductors necessary to complete the circuit. If you notice, the power is coming in at the light box. OK, this diagram is going to be a little more confusing but I'm showing it because this can be a very common scenario. When wiring a 4-way switch, this image on the left will show how the connections should actually look when all connections are made. So the circuit above when explained should give you a good concept on how this 4-way circuit works. If no connection is available, then attach the ground wire to the box in a solid way. All grounds are connected, and the ground is connected at the light when possible. It's very important that the ground or bare copper wire is connected to the green screws on the switches. There you have it, 3-way switch wiring simplified. Now with that said, just look at the switch again and look at the circuit. Then the traveler wires are connecting both switches and it does matter which wire goes to which traveler screw. The black wire going to the load will always connect to the common screw on the 2nd switch in the circuit. By looking at the moving 3-way switch above, the hot (black) wire coming from the power source will always attach to the common screw on the 1st switch in the circuit. The best way to simplify wiring a 3-way switch is this. When wiring a 3-way switch, this image on the left will show how the connections should actually look when all connections are made. So the circuit above when explained should give you a good concept on how this 3-way circuit works.
0 Comments
Leave a Reply. |