Disconnect switch

What is the Function of a Switch-Disconnector?

A switch-disconnector is an essential device in electrical systems. Its primary function is to isolate a section of the electrical circuit for safe maintenance or repairs. In the open position, it interrupts the electrical current and provides a visible physical separation of contacts, ensuring operator safety. It is commonly used in industrial installations and commercial buildings to protect equipment and personnel.

How to Choose a Switch-Disconnector?

Choosing a switch-disconnector involves several key criteria:

• Rated Voltage: Ensure the switch can handle your installation's voltage.
• Rated Current: Match the switch’s rating to the maximum expected current.
• Mounting Type: Select between enclosure, panel, or DIN rail mounting as needed.
• Safety Features: Opt for models with locking mechanisms to prevent accidental operation.
• Standards and Certifications: Verify compliance with relevant standards (e.g., IEC, UL).

What Rating for a Switch-Disconnector?

The rating of a switch-disconnector depends on the maximum current in the circuit where it will be installed. Here are some tips for selecting the correct rating:

• Evaluate the Nominal Current: Calculate or consult your installation specifications to determine the maximum current.
• Safety Margin: Choose a switch with a safety margin above the nominal current to avoid overloads.
• Manufacturer Specifications: Refer to manufacturer recommendations to ensure compatibility with your installation.

Switch-Disconnectors Range at Optim-Elec

We offer a wide range of switch-disconnectors from Socomec and Telergon.

Socomec Switch-Disconnectors

Socomec provides a complete range of switch-disconnectors for various applications:

• SIRCO M: 16 to 125 A for command and disconnection.
• SIRCO: 125 to 5000 A for energy distribution.
• SIRCO PV: 100 to 3200 A for photovoltaic installations.
• INOSYS LBS: 160 to 1600 A for DC and PV applications.
• SIDER and SIDERMAT: 125 to 3150 A for energy distribution.

The SOCOMEC range is designed for machine control and energy distribution applications. These devices are built for industrial use and are extremely robust, with a specific range for photovoltaic installations.

Telergon Switch-Disconnectors

Photovoltaic Switch-Disconnectors

• Series F1: Ideal for DC applications up to 32A and 1500V, featuring IP66 protection and operating temperatures from -40°C to +85°C. Modular design with lockable handles for flexible and secure installation.
• Series F7: Designed for higher currents up to 55A, with the same protection and temperature characteristics as the F1 series. Offers modular configurations from 2 to 10 poles and lockable red handles for enhanced visibility and safety.

Switch-Disconnectors in Enclosures

• Series S3: The Telergon S3/000 20A AC switch-disconnector is designed for emergency disconnections, housed in a plastic enclosure compliant with IEC 60947-3, providing enhanced safety for industrial and commercial installations.

For technical assistance or personalized advice on our switch-disconnectors, feel free to contact us. Our team of experts is available to answer your questions and guide you through your projects.