Surge arrester type T2, 2-pole, In: 20kA (8/20), Imax: 40kA, Uc: 275V AC RSP-T2-AC/2P 2617132

Protection of electrical installations against overvoltage

This two-pole Type T2 surge arrester is a key element in protecting electrical installations from the effects of lightning strikes and switching surges. Designed for use in AC installations, it provides protection for low-voltage devices, minimizing the risk of damage caused by sudden voltage increases. Class II/B indicates its ability to effectively limit overvoltages in lightning protection systems.

Characteristics and application

This arrester, with a rated discharge current of 20kA (8/20) and a maximum discharge current of 40kA, is ideal for mounting in local distribution boards and for protecting circuits supplying external devices. Its construction based on varistor-spark gap technology guarantees a fast and effective response to overvoltages. The maximum continuous operating voltage of 275V AC makes it compatible with most standard electrical installations. Thanks to this, these arresters are used both in residential and commercial buildings, ensuring the continuity of operation of connected devices.

Key features and benefits

• Effective protection: Protects against damage caused by atmospheric and switching surges.
• High efficiency: Rated discharge current of 20kA (8/20) and maximum discharge current of 40kA guarantee reliable protection even with large surges.
• Versatility: Designed for AC installations, ideal for local distribution boards and external circuits.
• Compliance with standards: Designed in accordance with IEC 61643-11:2011, which confirms its quality and safety.
• Protection level Up ≤ 1.5 kV: Limits the surge voltage to a safe level for connected devices.
• Maximum backup 125A gL/gG: Allows selection of appropriate overcurrent protection for optimal installation protection.
• Fast response time: ≤ 25 ms – minimizes the exposure time of devices to overvoltages.

The rated discharge current (8/20 μs) is 20 kA, and the maximum discharge current (8/20 μs) reaches 40 kA. The maximum continuous operating voltage Uc is 275 V AC, and the protection level Up does not exceed 1.5 kV. The arrester response time is ≤ 25 ms, and the maximum backup is 125 A gL/gG.

This arrester is a reliable solution for anyone who cares about the safety and continuity of operation of their electrical installation. Its solid construction and compliance with applicable standards guarantee long-lasting and effective protection against the effects of overvoltages.