Control Relays

We offer three types of control relays from a range of brands including Phoenix Contact, ABB, Siemens and Omron.

If you're looking to control temperature, voltage, current or frequency, you'll find the products within monitoring relays. For all of your signal conditioning and conversion requirements, visit our signal conditioning range.

What is a control relay?

A control relay is basically an electrically operated switch.

How does a control relay work?

They work by opening and closing a switch to allow power to flow through a coil to conduct electricity. The coil does not actually come into contact with the switch during this process.

What types of control relays are available?

The three types of control relay are as follows:

  • Impulse relay - a type of latching relay that transfers the contacts with each pulse.
  • Monitoring relay - a protective control device for monitoring and receiving input signals, and outputting an alarm signal if a threshold is reached.
  • Signal conditioning - a device that converts one type of electronic signal into another type of signal.

What are the uses of a control relay panel?

Control relay panels are used for the control and monitoring of electrical equipment such as transformers, generators and circuit breakers in industrial systems and environments.

What is the function of an undervoltage control relay?

A relay will trip the breaker circuit if it detects an abnormality. An undervoltage (UV) relay will activate if the voltage is lower than a prescribed value, and stay like that until it reaches the necessary voltage.

Guides & Articles

article1_image

In our definitive guide, we look at what flow switches are, how they work and what they’re used for, as well as the different types that are available.

article1_image

In our comprehensive guide we look at what thermocouples are, what they’re used for, as well as the different types that are available.

Related Products
TELE KAPPA series AC and DC voltage monitoring ...
Description:
TELE KAPPA series AC and DC voltage monitoring relay Multifunction monitoring in a slim easy to use package. The KAPPA series have a self-extinguishing plastic body with an IP rating of IP40. DIN Rail mountLED indicator Screw terminals2 change over ...
Multi range Adjustable hysteresis Latching facility Adjustable fault ...
Description:
Multi range Adjustable hysteresis Latching facility Adjustable fault delay Switchable relay inversionLED indication Write on ID tab Dimensions: H78 x W45 x D99mm
Adjustment for upper and lower trip levels Monitors ...
Description:
Adjustment for upper and lower trip levels Monitors own supply User-selectable nominal voltage: 24/115/230 V ac Time delay (from fault) with adjustable setting"Power On Delay" (Td): 2 sLED indication for supply and relay status Dimensions: H78 x W45 x D99 ...
The control of AC and DC voltage02V to ...
Description:
The control of AC and DC voltage02V to 60V (EUL) and 10 to 600V (EUH) measurement ranges Selection of over-voltage and under-voltage, by means of a dip switch Delay on threshold over-run 0.1s to 3s.