Type 1 surge protection device DEHNventil M TNS 255, 4-pole (so-called B+C) 951400

Electrical installation protection with DEHNventil M TNS 255

The DEHNventil M TNS 255 surge arrester is an advanced device designed for comprehensive protection of electrical installations against the effects of atmospheric and switching surges. It is a four-pole Type B+C arrester, which means it effectively suppresses both lightning strikes and fast transient disturbances in the network. Mounting is done on a standard DIN TH-35 mm rail, and its width of 8 modules allows for easy adaptation to existing switchboards.

This model is particularly recommended for use in TN-S networks, where it provides optimal protection for both phase, neutral and protective (PE) lines. Thanks to the high specific energy at the level of 2500 kJ/Ohm, the arrester is able to absorb a significant amount of surge energy, minimizing the risk of damage to connected devices. The surge current at the level of 100 kA guarantees an effective reaction even with strong atmospheric discharges.

Application and benefits for the installer and user:

• Versatility: The Type 1+2 protection class arrester provides protection against both direct lightning strikes (Type 1) and surges from the network (Type 2).
• Safety: The L-PE and N-PE protection level of 1.5 kV effectively limits the surge voltage to a safe level for connected devices.
• Durability: Made of high-quality materials, it guarantees long-lasting and reliable operation of the device.
• Installation: Simple mounting on a DIN TH-35 mm rail facilitates and speeds up installation.
• Energy saving: The use of spark gap technology for voltage switching minimizes energy losses.
• Overload protection: Maximum overcurrent protection up to 125 A (in series) and 315 A (in parallel) protects against the effects of overloads in the installation.
• Compatibility: The ability to connect wires with a cross-section of up to 50 mm² ensures compatibility with various types of installations.
• Optical signaling: In the event of the arrester operating, the built-in optical signaling indicates the need to check the device's status.

The DEHNventil M TNS 255 arrester is an investment in the safety and reliability of the electrical installation, which protects valuable equipment from damage caused by surges. Its solid construction and high technical parameters make it an ideal choice for both professional installers and demanding end users. The ability to extinguish the follow current at the level of 50 kA further increases the safety level of the entire installation.