The DG M TT 320 FM from Dehn is a multipole surge arrester of protection class Type 2, designed according to the standard EN 61643-11. This device provides effective protection for low-voltage consumer installations against surges caused by lightning strikes or other electrical disturbances. The surge arrester consists of a base unit and plug-in protection modules, allowing for easy maintenance and replacement of the modules. A standout feature is the integrated arrester monitoring with Thermo-Dynamic Control, which ensures high device safety. The DG M TT 320 FM is suitable for use in lightning protection zones at interfaces 0B 1 and higher, thus offering comprehensive protection in various applications.

• Thermo-Dynamic Control for enhanced device safety
• Suitable for lightning protection zones at interfaces 0B 1 and higher
• Easy maintenance through plug-in protection modules
• Protection level of only 1.5 volts
• Lightning impulse current of 40 kA for robust protection.