In home and office applications, we use simple rocker switches to turn ON and OFF appliances like lights, computers, fans etc.
There are numerous applications of switch, found in wide variety of fields such as homes, automobiles, industrial, military, aerospace and so on. When the switch is in position A, the lamp 1 turns ON and while it is in position B, lamp 2 turns ON. When the contacts of a switch are open, no power will be consumed by the load as shown in below figure.Īnother important function of a Switch is to divert the flow of electric current in a circuit. When the contacts of a switch are closed, the switch creates a closed path for the current to flow and hence load consumes the power from source.
A switch can perform two functions, namely fully ON (by closing its contacts) or fully OFF (by opening its contacts). So, switches are a part of the control system and without it, control operation cannot be achieved. Every electrical and electronics application uses at least one switch to perform ON and OFF operation of the device. In simple words, a Switch can make or break an electrical circuit. Decorative switches include styles that rock, turn, or slide rather than toggle.A Switch is a device which is designed to interrupt the current flow in a circuit. Other special-duty switches can be time-programmed or let you know whether a remote light is on or off. In addition to the familiar toggle and rotary switches, specialty switches can do everything from turning on when you walk into a room to varying the speed of whole-house fans. However, for a fan or fluorescent light, you should buy a special switch rated to control those devices. You can usually replace any single-pole switch with a dimmer. These control a light from two or three switch locations, such as at the top and bottom of a stairwell, at either end of a hallway, or in a large room with multiple entrances.Ī dimmer switch controls a light's intensity. A three-way switch has three terminals a four-way has four. The most common household switch, a single-pole, has two terminals and simply turns power on or off. Here are the basic types of switches and dimmers.
#Single pole vs 3 way switch install#
Take a look at our guide to switches and dimmers to pick the right lighting option for your room.īe sure to select a switch that's compatible with the circuit where you want to install it and your lighting needs. After choosing the perfect chandelier, pendant, or recessed lighting for your home makeover, make sure you pick the right electrical switch for your needs. Turning it off breaks the circuit, as the switch creates a gap that stops the flow. However, the basic function always remains the same: Turn a switch on and it completes the circuit, letting electricity flow through it. With different switch styles, wiring needs, and programmable capabilities, the wide variety of light switches and dimmers can be tricky to navigate.
Light switches, once a simple decision, are now a home improvement category boasting a number of designs and functions.
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