Surge arrester type T2+T3, 4 poles, In: 10kA (8/20), Imax: 20kA, Uc: 275-385V RSP-T2T3-AC/4P 2617140

Electrical installation protection with surge limiters

This four-pole surge limiter of the RSP-T2T3-AC series is a key element in protecting the electrical installation from the effects of lightning strikes and overvoltages. Designed to work with AC installations, it provides comprehensive protection for electrical and electronic devices. Its design based on varistor-spark gap technology guarantees a quick and effective response to sudden voltage changes.

Features and application

This limiter combines the features of a Type T2 and T3 limiter, which means it effectively suppresses both strong current impulses from direct lightning strikes (T2) and smaller, but more frequent transient overvoltages (T3). This makes it an ideal solution for residential, commercial and industrial buildings. It can be used in installations with a voltage of 275-385V. Fast response time (≤ 25ns) minimizes the risk of damage to connected devices.

Performance and safety

The limiter is characterized by a rated discharge current In of 10kA (8/20μs) and a maximum discharge current Imax of 20kA (8/20μs). A protection level ≤1.5kV ensures effective limitation of the voltage to a safe level. The use of varistor-spark gap technology in the limiter allows for the absorption of surge energy, protecting sensitive devices from failure. In addition, the limiter complies with IEC 61643-11:2011, which confirms its high quality and reliability. Maximum backup level of 125A gL/gG provides additional safety for the installation.

It is worth remembering that proper selection of the surge limiter and its installation in accordance with the rules of the art are crucial to ensure full protection of the electrical installation.