2 way switches

You may have heard of a single-pole switch, a three-way switch, a four-way switch, a double-pole switch, a reversing switch, and an alternative switch. But what's the difference?

All of these terms refer to electrical switches used to control electrical circuits or devices. The difference between them lies in how they connect the electrical contacts in their various states.

1. A single-pole switch, or alternative switch or 2 way switch, is a simple switch that either opens or closes an electrical circuit. It has three contacts that can be connected or disconnected using the switch. It is used for controlling lighting from two locations.

2. Three-way switch, Intermediate switch, Four-way switch - are types of switches that are used to control two circuits from one location. It has four contacts that are connected in different combinations by a switch to control the voltage in each circuit. It is used for controlling lighting from three locations.

3. A Reversing switch is a type of switch that is used to change the direction of rotation of a motor or device. It has two contacts that are connected in different combinations to reverse the current direction in the circuit.

Therefore, the difference between these switches lies in their functionality and the way their contacts are connected.

All of these switches can be used to control various types of electrical circuits, including lighting, motors, devices, electronic devices, and others. The choice of switch depends on the specific task and requirements of the system in which it will be used.