# Question: What is a single pole switch used for?

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A single pole switch is used to control the light in a small closet or bathroom. Its called a single pole switch because there are two wires connected or separated by the switch mechanism. Theres also a ground wire to protect against electrical faults.

## What is a double pole switch used for?

A double pole single throw switch controls two circuits (poles) and has 2 states an “on” (closed) state and an “off” (open) state. A double pole single throw has four terminals in total, two inputs and two outputs which are all controlled by the same switch.

## What is a single pole switch?

A single pole switch has one input and one output, it has two states; “on” or “off”. They can be wired either normally open or normally closed and can be either latching or momentary. There are two types of single pole switch, these are “single-pole, single throw” and “single pole double throw”.

## Can I use a single pole switch as a double pole?

Double pole light switches, also known as a four-way switch, are two single pole switches put together. A double pole switch can be used to control light and a fan or 2 lights on separate circuits. 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.

## Can I use a 2 pole breaker for 120v?

Double-pole breakers have two hot wires that are connected by a single neutral wire. That means if theres a short circuit on either of the poles hot wires, both trip. These breakers can be used to serve two separate 120-volt circuits or they can serve a single 240-volt circuit, such as your central ACs circuit.

## When should you use a 2 pole breaker?

Double-pole breakers have two hot wires that are connected by a single neutral wire. That means if theres a short circuit on either of the poles hot wires, both trip. These breakers can be used to serve two separate 120-volt circuits or they can serve a single 240-volt circuit, such as your central ACs circuit.

## Can you convert 240V to 120v?

It can be done, but youll have to swap out the breaker. A standard US receptacle is rated for 125 volts, and 15 or 20 amperes. So youll be going from a 30 ampere double pole breaker, to a 15 or 20 ampere single pole breaker.

## What is the difference between SPST and DPDT switch?

SPST simply mean single pole, single throw. The product controls one circuit with one On position. DPST again means it controls two separate circuits but it only has one On position. DPDT means it has two on positions and can be configured above the same as a single pole can be.

## Can you install a smart switch without neutral?

If you want to use smart switches and dont have a neutral wire in your switch box, you can hire an electrician to run a neutral wire between the light fixture and the switch. You can also have an electrician rewire the switch and light fixture, which is potentially more expensive.

## How many amps is a double pole 20 amp breaker?

The breakers themselves are relatively narrow and occupy a single slot in the homes breaker box. Double-pole breakers, on the other hand, are typically rated for 20 to 60 amps and supply 240-volt power to large appliances, like electric dryers and ranges.

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