System optimization

The be quiet! SILENT WINGS PRO 4 is a high-performance 120mm PWM case fan with a sleek white design.

A robust surge arrester for single‑phase TN systems, the DEHNshield TN 255 FM combines Type 1 and Type 2 protection in one compact unit. It offers fast response to lightning strikes, high energy absorption, and reliable isolation of fault currents, ensuring continuous operation and safeguarding connected equipment from transient overvoltages.

DEHNshield DSH TT 2P 255 FM is an optimized combined surge arrester suitable for use in both TT and TN power systems.