Surge arresters of type 1+2 are intended to protect low-voltage power supply systems from surges and even direct lightning strikes at the boundaries of lightning protection zones 0B -2 and higher. By putting in surge protection devices, you can lessen or even avoid damage to your priceless possessions. This type of high-quality surge protection device is corrosion and fire-resistant. Plug-in design, support for the hot-line operation, straightforward and user-friendly. Surge protection stops excessive lightning-related impact on the home electric network.