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

Sep 11, 2024 · Relays can be classified into different types depending on their functionality, structure, application etc. We listed out some of the common types of relays here.

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 …

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 …

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 …

Nov 24, 2025 · Relays can control high-power load circuits through low-power control circuits and are key components in automation, circuit protection and control systems. The purpose of a …

Before we go to far, it's important to think of a relay as an electrical switch. That is, a remote controlled switch, designed to direct the current path from one part of the circuit to another.

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.

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 …