Surge arrester DEHNventil M2 TNC 255 FM Type 1+Type 2+Type 3 956305

Combined surge arrester for comprehensive protection

The DEHNventil M2 TNC 255 FM surge arrester is a modular, multi-pole device designed to protect low-voltage installations from the effects of surges, including those caused by direct lightning strikes. The device combines the functions of type 1, type 2 and type 3 arresters, providing versatile protection for both installers and end users. The use of Rapid Arc Control (RAC) technology guarantees reliability and effective limitation of follow currents.

Construction and application in a lightning protection system

This surge arrester is an ideal solution for use in accordance with the Zonal Lightning Protection Concept (LPS), forming a key transition between zones 0A and 2. Its construction based on spark gaps with replaceable modules ensures easy servicing and replacement of elements if necessary. The device is intended for TNC networks with a rated voltage of 230/400 V and occupies 4 modules on a TH-35 mm DIN rail. It also has an integrated remote signaling contact, allowing for quick identification of any activation.

Key features and benefits

• Versatile protection: The combination of types 1, 2 and 3 in one device minimizes the risk of damage caused by various types of surges.
• RAC technology: Ensures fast and effective extinguishing of the electric arc, increasing the safety of the installation.
• Replaceable modules: Allow easy replacement of damaged elements without the need to replace the entire device – saving time and costs.
• Remote signaling: Allows continuous monitoring of the device status and quick response in the event of a failure.
• Energy coordination: Compliance with DIN CLC/TS 61643-12 enables coordinated protection with other elements of the system.
• High durability: The lightning impulse current (10/350 µs) is as high as 75 kA, and the follow current extinguishing capacity reaches 50 kA, guaranteeing effective protection even in the event of strong atmospheric discharges.
• Universality: Suitable for use in various types of electrical installations, especially in TNC networks.
• Certificates: Has VDE and KEMA certificates confirming the high quality and safety of the product.

The DEHNventil M2 TNC 255 FM surge arrester is an investment in long-term protection of the electrical installation and the devices connected to it. Its solid construction, advanced technologies and ease of installation make it an ideal choice for both professional installers and demanding end users.