Surge arresters of type 1+2 are intended to protect low-voltage power supply systems from surges and direct lightning strikes at the edges of lightning protection zones 0B -2 and higher. 1P Low Voltage SPD Class I+II surge protection for data line networks in data centres, water treatment plants, and wind turbine installations. With the RJ45 sockets, they enable a flexible and simple installation. When the cartridges reach the end of their useful life, they can be removed and replaced while the sockets remain operational.
Great device for protecting electrical system from surges. This low voltage single phase SPD is reliable. I trust it to keep my equipment safe.