Surge arrester type T1+T2, 4 poles, Limp: 12.5 kA (10/350), In: 30kA (8/20), Imax: 60kA, Uc: 275V AC RSP-T1T2-AC 12.5/4P 2617122

Protection of electrical installations with surge limiters

This four-pole surge arrester type T1+T2 is a key element in protecting the electrical installation from the effects of sudden voltage increases. Application in main distribution boards (MB) ensures comprehensive protection in TT, TN-S and TN-C networks. The device effectively protects against damage caused by lightning strikes or other disturbances in the power grid.

This arrester combines the features of two protection classes – T1 and T2 – which means it can handle both direct lightning strikes (class T1) and indirect surges (class T2). The construction based on varistors and spark gaps guarantees a fast response and high current extinguishing capacity, and the mechanical status indicator (green/red flag) facilitates current monitoring of the device's efficiency.

Application and benefits:

• Versatility: ideal for use in single-phase and three-phase installations.

• High efficiency: peak current Limp at 12.5kA (10/350) and rated discharge current In of 30kA (8/20) provide effective protection against surges. The maximum discharge current Imax reaches as much as 60kA.

• Fast diagnostics: visual check of the device's status thanks to the mechanical indicator – green color indicates efficiency, red signals the need for replacement. This saves time and minimizes the risk of failure.

• Compliance with standards: meets the requirements of IEC 61643-11:2011, ISO 9001 standards and has CE and RoHS certificates, which confirms its quality and safety.

• Universal mounting: modular design allows for easy installation and replacement in standard distribution boards.

This arrester is a reliable solution for both professional installers and end-users who want to ensure the safety of their electrical appliances and avoid costly repairs caused by surges. Thanks to its solid construction and high technical parameters, it is an investment in long-term protection of the electrical installation.