T1 Surge Protection Device (Type 1 SPD) is designed to protect electrical systems against direct lightning strikes and high-energy surge currents.

It is installed at the main distribution board as the first level of lightning protection, especially in buildings equipped with external lightning protection systems.

The device is capable of safely discharging lightning impulse current with a 10/350μs waveform, which represents the most severe lightning conditions.

With a high Iimp rating (12.5kA or 25kA per pole), the T1 SPD effectively limits overvoltage and prevents serious damage to power distribution equipment.

T1 surge protection devices are commonly used in industrial facilities, data centers, power plants, and commercial buildings located in lightning-prone areas.

They are suitable for TN, TT, and IT power systems and can be combined with T2 surge protection devices to form a complete multi-stage protection system.

Featuring DIN rail installation, fast response time, and stable discharge performance, the T1 SPD ensures reliable and long-term protection of electrical infrastructure.

It plays a critical role in reducing downtime, maintenance costs, and the risk of equipment failure caused by lightning surges.