The Dehn 952100 DG S ACI 275 FM surge arrester is a single-pole surge protection device classified as Type 2 according to EN 61643-11. It provides effective protection for low-voltage consumer installations against surges caused by lightning strikes or other electrical disturbances. The combination of a base unit and plug-in protection modules allows for flexible adaptation to various applications. A standout feature of this device is the integrated ACI switch/arc gap combination, which ensures high device safety. The surge arrester monitoring is carried out by the innovative Thermo-Dynamics Control System, enabling preventive monitoring of device conditions. The surge arrester is designed for use in lightning protection zones at interfaces 0B 1 and higher, thus offering reliable protection in critical areas.

• Integrated ACI switch/arc gap combination for high safety
• Thermo-Dynamics Control for monitoring device condition
• Suitable for lightning protection zones at interfaces 0B 1 and higher
• Nominal discharge current of 20 kA for effective protection.