Relays are a type of switch that is operated electronically to turn currents on or off within an electric circuit. Relays operate similarly to a typical light switch. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. The switch may have any number of contacts in multiple contact forms, such as make contacts, break contacts, or combinations of both. Relays have many different uses and are often utilised in situations where isolation is necessary or when a circuit needs to be controlled with a low-power signal.

Shop Express Electronics range of electronic relays below.