Surge arrester DEHNguard M TN 275 Type 2 952200

Electrical installation protection with DEHNguard M TN 275

This two-pole, modular surge arrester DEHNguard M TN 275 is a key element in ensuring the safety and reliability of the electrical installation. Designed in accordance with PN-EN 61643-11 (type 2), it effectively protects against the effects of surges that can damage sensitive electronic devices. It is an ideal solution for both installers and end-users looking for solid protection.

This arrester finds its application in the zone concept of lightning protection, constituting an important link between zones 0B – 1 and higher. This ensures comprehensive protection of the entire installation. Its compact size (2 module width) makes it easy to install in electrical distribution boards.

Characteristics and application

DEHNguard M TN 275 is designed to operate in single-phase TN networks with a rated voltage of 230V AC. Its construction based on a replaceable protective module and a “Thermo Dynamic Control” monitoring and disconnecting device guarantees high reliability and long service life. The damage indicator facilitates quick identification of the need to replace the module after a strong surge.

The arrester is characterized by a high continuous operating voltage of up to 275 V AC, which ensures stable operation under typical network conditions. It provides a protection level of up to 1.5 kV, effectively limiting the surge voltage to a safe level. Its discharge current is 20 kA, which means a high ability to dissipate surge energy, and the short-circuit strength is as high as 50 kArms – resistance to short-circuit currents occurring during failures. Compliance with DIN EN 62305-4 enables integration with lightning protection systems, and belonging to the Red/Line series signals the high quality and reliability characteristic of DEHNguard products.

Advantages and benefits for the installer and user

The DEHNguard M TN 275 arrester is not only a protective element, but also an investment in peace of mind and safety:

• Quick installation: The modular design and the possibility of mounting on a DIN rail significantly speed up installation, saving time and labor costs.
• High reliability: The “Thermo Dynamic Control” monitoring and disconnecting device ensures automatic disconnection of the damaged module, minimizing the risk of installation failure.
• Easy diagnostics: The damage indicator allows for quick identification of the need to replace the protective module without having to disassemble the entire device.
• Comprehensive protection: Protects against the effects of atmospheric surges and disturbances from the power grid, protecting connected electronic devices from damage.
• Long-lasting protection: The replaceable protective module allows for easy replacement of the used element without having to replace the entire arrester, which reduces operating costs.
• Compliance with standards: Meets the requirements of PN-EN 61643-11, guaranteeing safety and compliance with applicable regulations.