Sunday, 31 October 2021

How to Wire a Light Switch? Controlling a Lamp by Single Way Switch

In today basic home electrical wiring installation tutorial, we will show how to wire a light switch to control a light point by one way or single way switch.

We will use the basic SPST (Single Pole Single Through) switch in this tutorial to control a lamp / bulb from single location.

Before go in details, we have to show the basic construction and operating mechanism of single way switch which is shown in fig below:


Below is a simple step by step tutorial with schematic and wiring diagram which shows how to wire a light switch to control the bulb/lamp from single place with the help of one way or single way switch?

Requirements:

  • Single Way Switch (SPST = Single Pole Single Through) x 1 No
  • Lamp (Light Bulb) x 1 No
  • Short pieces of cables x 3 No

Procedure:

This is just like a series circuit i.e. all the components are connected in series. Just connect the Neutral wire directly to the light bulb and then connect the light bulb to the switch through middle wire. And then connect the live wire to the switch as shown in fig below. Fig given below shows the basic connection of light switch and their position i.e. when the switch is OFF, the circuit acts like an open circuit and the bulb won’t glow. To switch on the bulb, switch Smust be closed to complete the circuit and glow the light bulb.

How to Control a Light Bulb by a Single Way or One-way Switch?


Wiring a Light Switch

In fig below, schematic and wiring diagrams of light switches are shown which shows how to wire a light switch?

How to Wire a Light Switch
How to Wire a Light Switch

Also note that home wire colors may vary according to different areas. In addition, always use and connect the earth wire (direct naked wire to switches, and electrical appliances from earth link in the distribution board to reduce the risk of electric shock and hazard) which is not shown in the figures above.


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