Controlling of Each Lamp by Independent Single way Switch in Parallel Lighting Circuit?
In today basic home electrical wiring installation tutorial, we will show how to wire and control each lamp independently by using separate single way switches in parallel lighting connection.
Below is a simple step by step tutorial with schematic and wiring diagram which shows how to wire three different light bulbs in parallel to control from three different and independent switches and locations?
- Related Tutorial: How To Wire Lamps in Parallel?
- Single Way Switches (SPST = Single Pole Single Through) x 3 No
- Lamp (Light Bulb) x 3 No
- Short pieces of cables x 11 No
Connect all the wiring connection as shown in fig below.
- The first and second Lamps are glowing, because both the separate switches S1 and S2 which are connect to the bulbs through Line are at ON position and so the circuit is completed.
- The third Lamp is OFF, because switch S1 which is connected to light bulb through Line is OFF, so the circuit behaves like an open circuit meaning there is no way to flow the current in the circuit. Hence, bulb is not glowing
Now consider the following schematic wiring diagram. It is the same circuit as shown above but the switches and light bulb postpones just reversed i.e. S1 and S2 are at OFF positions, so Lamp 1 and Lamp 2 are OFF while S3 is ON and Lamp 3 is glowing.
Good to know:
- Switches and fuses must be connected through line (Live) wire.
- Connecting electrical devices and appliances like fan, outlet, light bulbs etc in parallel is a prefer way instead of series wiring.
- Parallel or series-parallel wiring method is more reliable instead of series wiring.
Related Electrical Wiring Installations tutorials:
- How To Wire Switches In Series?
- How To Wire Switches in Parallel?
- How To wire Lamps in Series?
- How to control One Lamp from two or three different places?
- How to Control a Lamp by a Single Way or One-way Switch?