Read about The Basics of Control Relays (Relay Control Systems) in our free Automation Textbook

Jan 27, 2023 · Also referred to as an electronic relay, a control relay is nothing but a switch, precisely an electromagnetic switch. The main function of a control relay is to allow the flow of electric current …

Nov 15, 2023 · A control relay is an electrically operated switch that enables current to flow through a coil that closes or opens the switch. Relays use a small current to control a larger current, making …

Aug 22, 2025 · Learn how relays work, their types, and applications in automation, safety, and electronics. Choose the right relay for your project with this guide.

Oct 1, 2009 · Inside the world of control relays, including how they’re constructed, how they work, and where they’re used. Over the years, control relays of various types have been used by the hundreds …

A control relay is an electrical component that opens or closes a switch in order to allow current to flow through a conducting coil, with the coil not coming into direct contact with the switch.

Jan 19, 2025 · What are the main components of a relay? The main components of a relay include the primary circuit, secondary circuit, electromagnetic coil, and armature. The primary circuit controls the …

Learn how electrical relays work, their types, and key applications in control systems, automation, and circuit protection across various industries

Everything you need to know about electrical relays - common applications, how they work, and how to use them.

Control relays are magnetic devices that are used to remotely switch loads. They are functionally identical to a magnetic motor starter, save that control relays lack horsepower-rated contacts and …