Electrical Relays Basics

Learn about the functions of electrical relays

Electrical relay suppliers provide different types of relays large and small for all sorts of applications, from automotive to household to industrial. For commercial and industrial uses, electrical relays provide many advantages by creating more efficiency or decreasing long-term costs.

But what are they? What are so many electrical relay manufacturers selling that can help your business? This guide will serve as a beginner's tutorial and explain the electrical relays basics that you need to form an idea of what they can do for your operations. Go through the steps below to learn about:

1. What electrical relays are

2. How industrial relays work

3. How the products of industrial relay providers can benefit your business

 

Learn the basics of what electric relays are

In essence, an electrical relay is an on/off switch; it functions as a medium for enabling or disabling electrical current flowing to equipment. You can install voltage relays in various industries to control power levels either for safety cut-off purposes or for maintaining schedules or cycles for machinery. Because they work automatically according to the electric impulses they receive, they don't require monitoring.
Try: Check out more detailed information about electric relays by going through Relay Basics, which provides a specific example for discussion purposes. You can also try All About Circuits, which will cover how relays function.

Discover more about how industrial relays work

Electric relays are useful because they allow a small amount of current to transfer a much larger amount. A relay in its dormant state is open; a small rod or arm inside the relay is disconnected from the transmitter, meaning power will not flow. A small electric impulse is sent to the relay, causing the arm to switch over and connect with the transmitter. This completes a circuit through which a much larger amount of power can then flow until the arm is switched back to its open position.
Try: Gain further knowledge of how voltage relays work by perusing HowStuffWorks.com and eSSORTMENT. Both supply the reader with details about the workings of relays along with their parts and some common uses.

Find out about the applications of the industrial relay

One of the primary applications for electrical industrial relays is in heating, venting and air conditioning (HVAC). Because these systems are often powering on and off in cycles, relays help control the continually changing flow of power. Voltage relays are also useful in various other industries with heavy machinery and systems, including manufacturing and processing plants, as well as in smaller applications like automobiles.
Try: Look at Maxim and HVAC Relays for some information about industrial relays. Maxim provides some examples for the advantages and disadvantages, and HVAC gives you more specific information about using relays for HVAC systems and equipment.

 

• Although this guide gives you a quick overview of electrical relays basics, you'll need to know things like the kind of power you draw and how much you need, including voltage and amperage. Only then can you decide what kind of relays would work best.

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