General Purpose Relay HP-2C Contact Form 2A, 2b, 2c

General purpose relay is a type of electrical switch controlled by an electromagnet.

The core of the general purpose relay is an electromagnet, formed by winding a coil around an iron core. When the coil is energised, by passing current through it, the core becomes magnetised temporarily.

General purpose relay is capable of controlling an output of higher power than the input, and as a result, it is often used as a buffer to isolate circuits of varying energy potentials.

General purpose relay  is used in a variety of applications, including signal switching, alarms and sensors, and the detection and control of faults on electrical distribution lines.