Coupling relays

Coupling relays

Coupling relays are used for indirect separation of the control and main circuits. Switching signals and input signal can be coupled in spite of different voltages. Coupling relays adapt the power during transmission by means of electrical separation. That means that it is for example possible that a 24 V signal controls a 230 V machine.

Application of relays in industry

Relays are used in all fields of industry. They are especially often used for the following tasks:

• Signal separation
• Signal fan-out
• Signal amplification

Coupling relays from strong brands in the Automation24 online shop

Automation24 offers pre-assembled coupling relays from PHOENIX CONTACT, which are particularly easy to handle and quickly wired thanks to their push-in connection. They are available with an input voltage of 12 V DC and a potential-free changeover contact, as well as with 24 V DC and a 4-way changeover contact or with 230 V AC and a 4-way changeover contact. With the appropriate accessories, such as the PHOENIX 2902647 - RIF-T3-24UC timer module, the 24 V coupling relays can be quickly converted into timer relays.

For use in potentially explosive atmospheres, the 24 V DC Ex Safety Coupling Relays from the PSRmini series from PHOENIX CONTACT are also available for SIL 2 or SIL 3 applications. Thanks to their very slim type, you can save up to 70% space in the control cabinet with these safety coupling relays.

In addition, you can purchase INSTA contactors from Siemens from the 5TT5 series with AC/DC technology. These coupling relays are designed for inductive, capacitive and resistive loads and are therefore particularly suitable for switching heaters, illumination or motors.

For safe switching of control signals up to SIL 3/PL e, you should use the SIRIUS 3RQ1 24 V DC safety coupling relays from Siemens. All Siemens coupling relays are connected via screw terminals.

You can also purchase a 24 V AC/DC electromechanical coupling relay model with changeover contacts from Lovato Electric. Thanks to the push-in terminals, this can be quickly installed and is ready for use.

Automation24 also provides the ideal protection for your coupling relays. Suitable solutions are available for this purpose in the form of enclosures.

On Automation24 you will find a wide range of coupling relays in high-quality brand names for a wide range of applications at very attractive prices. Select the right coupling relay for your application now!