Like the single pole switch a double pole switch has onoff markings and controls a device or equipment from one location. A double pole switch is not specifically designed to open contact on a hot and neutral although it could be used for that.
Leviton Presents How To Install A Combination Device With Two Single Pole Switches
Why use a double pole switch. These screw terminals are mounted on the side of the switch. A double pole double throw dpdt switch is a switch that has 2 inputs and 4 outputs. It is easy to wire a double pole switch to work as a single pole switch because only one side is used instead of both. Each input has 2 corresponding outputs that it can connect to. The main difference is that a double pole switch has four hot brass terminals instead of two plus a ground terminal. A dpst has 4 terminals while a dpdt has 6 terminals.
Single throw type switches designate an on or off type operation. A double pole switch on the other hand is essentially a switch that allows or disallows current flow between two distinct lines or circuits at the same time. This makes the the double pole double throw switch a very versatile switch. With 2 inputs it can connect to 4 different outputs. They provide a convenient way of installing the electrical cooking appliance rather than using a traditional plug and socket. It is more often used to open contact on two hot wires simultaneously such as for a 220 volt circuit that uses two hot conductors or for two 110 volt circuits that each use a single hot conductor.
A double pole switch is usually a bit larger than a single pole one but that isnt just because it has to accommodate two poles instead of one. A double pole switch can be used to control light and a fan or 2 lights on separate circuits. Double pole switches are usually rated at 30 amps so any appliance or equipment requiring a greater power consumption have to be connected to a disconnect switch of the proper rating. It can either be a dpst double pole single throw switch or a dpdt double pole double throw switch. Double pole switch is also called cooker switches. Double throw switches can divert the flow of electricity from one set of screw terminals to another.
This piece is about installing a double pole switch for a hot water heater a ceiling heater a compressor or anything else with less than 30 amps rating. This allows the user to connect it to two pairs of hot wires from a 240 volt circuit. A double pole single throw switch is used for turning electricity either on or off. Single pole switch is referred as a single pole single throw switch. Each of the terminals of a double pole double switch can either be in 1 of 2 positions. Its also because the wires feeding electricity to the switch are larger and this is due to the fact that double pole switches are usually used to control 240 volt circuits.
Gallery of Why Use A Double Pole Switch
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