DV1-B25/3(S) Monoblock Multi-pole Surge Protection Device (SPD) is designed to protect main distribution boards against high-energy lightning and surge events in TN-C network systems. Rated Type 1+2 (Class I+II), it provides combined lightning current and surge protection for critical low-voltage installations.

With surge ratings of 25 kA (10/350 μs) and 25 kA (8/20 μs), and protection modes L-PE / L’-PE, the device ensures effective energy discharge and equipment safety. Built using high-energy MOV technology in a compact monoblock housing, it complies with IEC/EN 61643-11 standards.

Ideal for power plants, substations, industrial facilities, infrastructure projects, and renewable energy installations, the DV1-B25/3(S) delivers reliable, long-term surge protection for mission-critical systems.