Switch types - Types of Switches - Types of Electrical Switches
Types of Switches
There are mainly two types of switches.
1. Mechanical Switch,
2. Electrical Switch.
Mechanical switches require physical or manual contact with switch for operation. Electrical switches not require physical or manual contact, it has ability to perform operation. Electrical switches operate under the action of semiconductors.
Mechanical switches further classify into different types of switches based on number of poles and throws. There are five types.
1. Single Pole Single Throw, (SPST).
2. Single Pole Double Throw, (SPDT).
3. Double Pole Single Throw, (DPST).
4. Double Pole Double Throw, (DPDT).
5. Intermediate Switch.