Electrical definitions

Magnetic contactor:

 magnetic contactor is a device that is powered by magnetism. Used to open and close the contacts in the motor control circuit, may also be called a magnetic switch or a contactor.


Relay :

relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals.

Types :

Electro-mechanical, solid state and reed.

Semiconductor:

A semiconductor is a substance that has specific electrical properties that enable it to serve as a foundation for computers and other electronic devices.

Types :

Sillicon, germanium, gallium arsenide.

Diode:

diode is a two terminal electrical device. Diodes are made from a semiconductor, most often silicon but sometimes germanium.

Types :

Zener, Rectifier, Schottky, Transient Voltage Suppressor, Thyristor, Silicon Controlled Rectifier, and TRIAC.


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