Installation relays

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Installation relays / switching relays: The heart of your electrical projects

Installation relays, or switching relays, are not only an integral part of modern electrical installations, but also an indispensable tool for every electrician and installation professional. Whether as part of home automation or industrial control systems, these small but powerful devices make it possible to control circuits efficiently and safely.

What exactly are switching relays? A simple explanation for professionals.

An installation relay, also known as a switching relay, is an electromagnetically operated switch that is specifically designed to control circuits up to a certain amperage (16 A). They are typically used in conjunction with pushbuttons and switches and enable the central control of various electrical consumers. Additionally, installation relays can help save energy. Their ability to only deliver electricity to the consumer when it is actually needed means they help optimize energy consumption.

Areas of application for installation relays: From home automation to industrial control

Installation relays or switching relays are a true all-rounder when it comes to controlling electrical systems. They have become increasingly important in home automation in recent years, particularly due to the trend towards smart home technology. Here they not only enable the control of lighting and air conditioning, but also security systems such as surveillance cameras and alarm systems. They even play a role in intelligent energy control, for example by connecting solar panels with energy storage and the household grid.

In an industrial context, installation relays are essential for automating production lines, pump systems and other complex machines. In manufacturing processes, for example, they enable the synchronized operation of assembly lines and robot arms. They are also used in emergency and safety systems, for example to enable automatic switching to emergency generators in the event of a power failure.

The different types of installation relays: make contacts, changeover contacts and break contacts at a glance

Depending on the specific requirements of your project, you can choose between different types of installation relays:

  • normally open contact (NO): Mainly for continuous closing processes, e.g. in lighting systems.
  • Change over contact (CO): Suitable for complex control tasks that require switching between different consumers.
  • normally closed contact (NC)r: Ideal for security systems that need to interrupt the energy supply under certain conditions, such as smoke.

Table for a quick overview:

Contact type Main application area Example
NO Contact Continuous closing processes Lighting systems
CO Contactr multiple switching options Air conditioning systems, pumps
NC Contactr Security applications Smoke detectors, alarm systems

Contact and support: How to get expert advice on installation relays and switching relays

If you have any questions or need expert advice, we are happy to help. Our professionals can advise you both online and over the phone to ensure you find the right product for your project.

An installation relay is an electromagnetically operated switch used in circuits up to 16 A. It acts as an interface between control and load circuits and allows high loads to be switched with low control current.

In contrast to industrial relays or power relays, installation relays are specifically designed for the requirements of building technology and smaller industrial applications. They are compact, easy to install and suitable for circuits of up to 16A.

There are essentially three types of contacts: normally open (NO), changeover (CO) and normally closed (NC). Normally open contacts pass current when the relay is activated. Changers can switch between two different current paths. Normally closed contacts interrupt the flow of electricity when the relay is activated.

Installation relays are usually installed in a control cabinet or distribution box and are mounted on a top-hat rail. Your cables are connected to screw connections.

The applications are diverse and range from controlling home lighting and air conditioning to automating industrial production lines, pump systems or even security systems.

Selecting the correct installation relay depends on several factors, including the type of application, required current flow, and specific control requirements. It is advisable to conduct a thorough analysis of the requirements before purchasing.

Technical specifications vary depending on the model, but some important parameters are always specified: rated voltage, maximum switching current and operating temperature. It is advisable to also pay attention to certifications and quality standards such as EN 60715 to ensure that the product meets your needs.