• 31/Aug, 2018

Types of Electrical Switches and Their Importance

A switch in an electronic device is used to interrupt the flow of electricity or electric current. Electrical switches are binary devices, they can be either completely off or completely on. In simple English, a switch is an electronic device which is used to break or make the electronic circuit. As you would have guessed, switches are important but scarcely deserve the respect that they should be getting. Since the invention of the first switch, the market has evolved, we have put together a list of switches currently available, some of them will surprise you!

   

TYPES OF SWITCHES DEPENDING ON THE SPECIFICATIONS

1. ONE-WAY (SINGLE-POLE) ELECTRICAL SWITCH

A one-way or single-pole electrical switch is the most common one in use. They are used to control lights, fans, or other devices from a single location. It has a simple ON and OFF marking. This is something you may not find on three-way or four-way switches. A single-pole or one-way electrical switch generally comes with two brass-colored screw terminals and is connected to the “hot” (current-carrying) wire, which is usually black. One of the brass terminals is for the incoming hot (current-carrying) wire, and the other terminal is for the outgoing hot (current-carrying) wire to the device. Most of the one-way switches also include a ground terminal for connecting the circuit’s ground wire. A one-way switch basically operates as a make or break switch. When it is turned ON, the two terminals are connected, and when it is turned OFF, the contact between the two is broken.

 

Image Source : www.finolex.com

2. TWO-WAY (DOUBLE-POLE) ELECTRICAL SWITCH

A two-way or double-pole electrical switch is generally used in industrial applications but can also be found in some home wiring systems. Like the single-pole switch, a two-way or a double-pole electrical switch may also have the ON and OFF markings on them. These switches control a device or equipment from more than one location. A double-pole switch has four hot brass terminals (instead of two terminals like a one-way). It also has a ground terminal, allowing you to connect it to two pairs of hot wires. A two-way or double-pole switch is basically two, one-way switches combined into one. One of the terminals can be connected to either of the remaining two but both the terminals cannot be connected at the same time. When you want to make a connection with one terminal, the connection with the other is broken. The Double-Pole or the Two-way switches are generally used for 30 amps (in comparison to the 15 or 20 amps in case of standard switches), so they are able to control higher-demand appliances, like motors, and machinery.

 

Image Source : www.finolex.com

 

TYPES OF SWITCHES DEPENDING ON USAGE

1. DO NOT DISTURB SWITCH

Entirely different from the regular switches available in the market, this soft touch operating switch is generally used in places like hospitals and hotels. Do Not Disturb Switch is generally used to ensure privacy and silence.

Image Source : www.finolex.com

2. LIGHT DIMMER / STEPLESS REGULATOR

A light dimmer/stepless regulator is used to control or change the speed of a fan or sometimes to change the intensity of a light between bright and dim. The regulators available earlier used to rotate in steps, each step representing a definite level of fan speed, but the Light Dimmer/Stepless Regulator allows you to rotate it freely without any steps or levels.

Image Source : www.finolex.com

3. BELL PUSH SWITCH

A Bell Push switch is connected to a doorbell. So, when the switch is pushed, it rings the bell connected to it. It can be used at homes, offices or at any other place wherever required. A Bell Push switch always maintains a broken circuit, unless the button is pressed.

Image Source : www.finolex.com

These are the types of switches generally available in the market. Apart from these, there is a wide range of durable and designer electrical switches made by FINOLEX. Switches from Finolex include durable products like Finolex Premium Plus Switches, which can last for years and they also have a range of designer switches like Feriha. For best result and durability, use FINOLEX WIRES & CABLES

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