Industrial Relays for Automation and Industry 4.0 | Telestar Shop Online

Welcome to the Relays section of Telestar Shop Online

Industrial relays are essential components in modern automation systems, used to isolate, protect, and control electrical signals between different circuits. In the context of Industry 4.0, the reliability and quality of relays play a strategic role in ensuring the continuity of production processes and the intelligent integration of machines.
At Telestar, you’ll find a wide range of solid-state relays and electromechanical relays suitable for all advanced industrial applications.

Main features of industrial relays

• Electrical isolation: Relays provide effective separation between the control circuit and the power circuit, protecting sensitive components from surges or short circuits.

• Remote control: They allow devices to be turned on or off remotely, improving operational efficiency and safety of installations.

• Process automation: Integrated with PLCs and other control systems, relays enable the automation of complex processes, reducing human intervention and increasing productivity.

• Circuit protection: In case of anomalies such as overloads or short circuits, relays can interrupt the circuit to prevent component damage.

Types of relays available

Electromechanical relays

Electromechanical relays use a magnetic mechanism and mechanical contacts to switch the circuit.
They are widely used in industrial plants, automation systems, and even domestic applications due to their ability to handle high loads and provide effective electrical isolation between control and load circuits.
One of the main advantages of this type of relay is its robustness and reliability, making it ideal for applications where high switching capacity and resistance to harsh environmental conditions are required.
However, they do have some drawbacks, including mechanical wear of contacts due to repeated opening and closing cycles.

Solid-state relays (SSR)

Solid-state relays (SSR) are electronic switching devices that control electrical energy without mechanical contacts.
Instead of using physical moving parts, they rely on semiconductor components such as thyristors, TRIACs, or MOSFETs to switch circuits on and off.
This design eliminates wear and tear, ensuring a longer lifespan and faster operation compared to traditional mechanical relays.
SSRs are ideal for high-frequency applications and environments with vibrations or dust. However, they generate more heat and require a heat sink.

Celduc single-phase solid-state relay

The Celduc single-phase solid-state relay is available in two variants: 25 A and 35 A.
With a space-saving 22.5 mm design and integrated heat sink, it is ready to use and designed for resistive loads (AC-51).
It offers a peak voltage up to 1600 V, a wide input voltage range (3-32 VDC), and built-in overvoltage protection.
It complies with EN60947-4-3 and IEC/EN60950/VDE0805 standards.
For more details, visit the product page: https://www.telestar-automation.it/produttore_celduc.html

Celduc slim solid-state relay 4A

The CEL-SLD03205 model is a slim DC solid-state relay with pin-to-pin compatibility with electromechanical relays.
It supports controls at 5, 12, 24, and 48 VDC, with a 24 VDC - 4 A output.
It features integrated blocking voltage protection, making it ideal for applications where space is limited.
For more information, visit: Celduc slim solid-state relay 4A https://www.telestar-automation.it/produttore_celduc.html

Celduc Okpac® hockey puck relay

The Okpac® series single-phase solid-state relay by Celduc is designed for resistive loads (AC-51) and is available in 25 A and 60 A variants.
It offers multiple connections, IP20 protective covers, and load status diagnostics.
The switchable voltage ranges from 24 to 690 VAC, with a peak voltage up to 1600 V.
For details, visit: Celduc Okpac® hockey puck relay. https://www.telestar-automation.it/produttore_celduc.html

Accessories for solid-state relays

To ensure safe and reliable installation of solid-state relays, Telestar offers a range of dedicated accessories.
Among them is the CEL-ESD01000 support for the SLD03205 model from Celduc, which facilitates mounting and ensures a stable connection.
To explore all available accessories, visit: Solid-state relay accessories.

Applications of industrial relays

Industrial relays are used in a wide range of applications, including:

• Industrial automation: Controlling motors, valves, industrial lighting, and heating systems.

• HVAC and temperature control: Managing heating, ventilation, and air conditioning systems.

• Medical equipment: Controlling medical devices to ensure safe and reliable operation.

• Consumer electronics: Used in appliances and other electronic devices for function control.

• Renewable energy systems: Managing photovoltaic and wind power plants to optimize energy production.

• Electric and automotive vehicles: Controlling electrical systems in vehicles to improve energy efficiency.

• Data centers and communication equipment: Managing power and cooling to ensure service continuity.

Future trends in relay technology

The field of relay technology continues to evolve, with ongoing advances aimed at improving performance, reliability, and efficiency.
Some key future trends include:

• Miniaturization: Growing demand for smaller relays that can be integrated into compact electronic devices.

• Smart relays: These relays incorporate microprocessors and communication capabilities, enabling remote monitoring and control.

• Energy efficiency: New relay designs focus on reducing energy consumption, contributing to energy savings.

These trends reflect the broader shift in the industry toward smarter, more efficient, and more integrated automation solutions.

Safety and protection of industrial relays

With the increase in connectivity in industrial automation systems, relay safety is becoming an increasingly important concern.
Ensuring proper installation, maintenance, and monitoring of relays helps protect equipment, maintain operational continuity, and support overall system safety.