Surge Arrester, Type II, 275 V AC, 20 kA, Replaceable Fuse Element, 3+N-Pole

The 103355 surge arrester from Noark is a class 2 device designed to protect electrical systems from overvoltages commonly associated with transient fast switching operations or indirect lightning strikes. It has a voltage rating of 275 V AC and a maximum discharge current capacity of 20 kA, making it suitable for installation in both main boards and sub-distribution boards. For optimal protection, it's recommended to install these devices at every 10 to 20 meters of cable length. This model features a 3+N-pole configuration and is engineered to work seamlessly with the class 1 devices of the EX9UE1 35 line, specifically using a 10-meter cable for the EX9UE2 20 275 variant. The surge arrester is built with varistor elements known for their rapid response to voltage spikes, ensuring immediate diversion of excess voltage away from sensitive equipment. Additionally, the EX9UE2 20 440 series has a modular design with a replaceable fuse element, allowing for easy and efficient replacement of functional modules without the need for complete device replacement. This minimizes downtime and maintenance costs when components burn out due to frequent overvoltage events. The product's EAN is 8592765033567.