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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.