The 103349 surge arrester from Noark is a Class 2 device engineered to safeguard electrical systems from overvoltages typically associated with transient fast switching operations or indirect lightning strikes. With a voltage protection level of 275 V AC and a maximum discharge current capacity of 20 kA, it is well-suited for installation in both main boards and sub-distribution boards. To ensure optimal protection, it is recommended that these surge arresters be installed at intervals of every 10 to 20 meters of cable length.

Designed for coordination with the Class 1 EX9UE1 35 line, the EX9UE2 20 275 achieves this through the use of a 10-meter cable. The surge arrester's construction incorporates varistor elements, which are known for their low response time to voltage spikes, providing prompt protection against electrical surges.

Featuring a modular design, the surge arrester allows for the replaceable insert, facilitating easy and efficient replacement of functional modules in the event of burnout from frequent overvoltage occurrences. The 1+N pole configuration ensures compatibility with a wide range of electrical systems. The product's EAN is 8592765033505.