The basic circuit of light dimmer using triac is shown below and this circuit depends on phase control. The central element in this switching circuit is a triode alternating current switch or triac.
Wiring Diagram Legrand 3 Way Dimmer Switch Wiring Diagram
Dimmer light switch circuit diagram. In the diagram below a 2 wire nm cable supplies power from the panel to the dimmer boxthe black line wire connects to the common terminal of the 3 way dimmera 3 wire nm connects the travelers of the dimmer to the travelers of the 3 way switchtraveler wires are interchangeable on each switch. With a standard single pole dimmer a single switch controls the light. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. This lets you dim from one location and turn the lights on and off from another. Care should be taken in selecting your dimmer switch. Dimming switch wiring diagram best turn signal wiring diagram.
You will need a three way dimmer and a three way switch. Turn on the light and have a helper watch as you switch off the circuit breakers or unscrew the fuses one at a time until the light goes out. Leave this circuit turned off while you work. In the circuit variable resistor vr1 and d1 diac are used to control the. With a three way dimmer you can control a light with two switches. Were using a non contact voltage detector to double check for voltage before removing the dimming switch.
Turn on a switch s2 this circuit becomes the automatic light switch circuit. Most dimmers are rated for 600 watts of power consumption so if you have several light fixtures which will be controlled by the 3 way dimmer switch you will need to count the number of fixtures the number of lamps per fixture and the watts per lamp. Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram. The capacitor c2 in the circuit below gets charge from the main supply. A triac is a small semiconductor device similar to a diode or transistor. Like a transistor a triac is made up of different layers of semiconductor material.
We put the parts includes s2 ldr and ra 33k 12w or rb to the ac dimmer circuit. In the last section we saw that a dimmer switch rapidly turns a light circuit on and off to reduce the energy flowing to a light switch. If only one switch controls the light purchase a single pole dimmer. Wiring a 3 way light switch. When no light or night to ldr the circuit will be closed the lamp as the load will glow. The variable resistor vr1 plays as a main controller in the light dimmer circuit.
And a potentiometer vr 500k adjusts the sensitivity. Wiring diagram headlight dimmer switch inspirationa gm headlight. Easily monitor control and optimize a lutron control system from any tablet pc or smartphone. Headlight dimmer switch wiring diagram collections of headlight dimmer switch wiring diagram collection. 2002 f53 headlights wire diagram trusted wiring diagrams. Lutrons new facility management tool empowers you to manage your building from anywhere.
Gallery of Dimmer Light Switch Circuit Diagram
