- 30 /July, 2018
Types of Electrical Switches
In an electrical system, a switch can both interrupt as well as direct the flow of current in another direction. We can say, all electrical appliances work through switches, which is used to turn on and off a device and with so many types of electrical switches available in the market, it becomes necessary to know what makes a particular switch different from the other. In other words, we can say every switch has a distinctive feature and by understanding its features we can make a better choice considering our requirements. Besides the basic turn on and off feature, many switches have integrated feature, like indicators, etc. Here, we have shared some of the different features and types of electrical switches to help you make a better purchase.
Single-Pole Switch : They are the basic on/off switch, which is used to break the connection between two terminals. Also known as the toggle switches, single-pole electrical switches are the most common types of switches and this type of switches controls one fixture from single location. These switches are is the easiest to operate, install and replace.
Double-Pole Switches : A double pole electric switch controls two fixtures without installing a separate box. It is actually like separate single-pole switches which are mechanically operated by the same button. These switches are also easy to operate, install and replace.
Three-Way Switch : Three- way switches are used to control lights with two switches. These switches do not have on/off position like single pole switch. They are mainly used in staircase, large rooms, to access fixture without any hassle. Though they are easy to operate, these switches are complicated to install.
Four-Way Switch : Four-way switch configurations are used to control lights with three or more switches. These switches are generally used in big halls or large rooms wherein easy access is required to switch on/off light fixtures. They do not have an on/off position like single pole switches. It is important to understand how these switches are wired before attempting to troubleshoot or replace. These switches are quite complicated to install.
Multi-Location Switch : A multi-location switch is an interconnection of two or more electrical switches to control an electrical load from more than location. These switches are used in large spaces and hallways, where having multiple controls add to safety and convenience but are quite complicated to install.
Bell Switch : They are basic switches that are used in doorbells in home and offices. When a visitor pushes the switch, it applies current to door bell ringing mechanism and thus they are easy to install and convenient to use.
Socket : Sockets allow communication between two different processes on the same or different machines. An electrical socket is a device that allows electrical equipment to be connected to the primary power supply. The sockets may differ in voltage and current rating, shape, size and type of connectors. Generally, these are available in 2-pin, 3-pin and 5-pin settings, with 6A-25A current rating.
Dimmer : Dimmers are devices connected to a light fixture and used to lower the brightness of light. These are available in single-pole, three-way as well as multi-location versions. Dimmers are easy to operate, and help in saving energy and extending the bulb life.
Fan Regulator : A fan regulator is a crucial component that serves to increase or decrease the speed of your fan according to your needs. Generally, fan regulators are available in 4-step and 5-step speed options and are easy to operate as well as easy to install.
Motor Starter Switch : Manual motor starters, also known as motor protection circuit breakers (MPCBs) or manual motor protectors (MMPs), are electromechanical protection devices for the main circuit. They are mainly used to switch motors ON/OFF manually and to provide fuseless protection against short-circuit, overload and phase failures. As per the load requirements, these motor starter switches are available in the current ratings of 20A, 25A and 32A respectively. These are easy to use, install and replace.
Power Unit : They are combination of socket and a switch and are often used in heavy load electrical equipments. These are available in different current ratings of 20A, 25A and 32A respectively. Power units are easy to install and operate.
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