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5Vdc Relay (Songle)

R13.26 inc VAT

10 in stock

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SKU: relay-165 Categories: ,

Description

Relays are electromechanical devices which are used to isolate two circuits electrically and connect them magnetically. They are very useful devices and allow one circuit to switch another one while they are completely separate. They are often used to interface an electronic circuit (working at a low voltage) to an electrical circuit which works at very high voltage. For example, a relay can make a 5V DC battery circuit to switch a 230V AC mains circuit. Thus a small sensor circuit can drive, say, a fan or an electric bulb.

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