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Transient voltage and lightning protection surge arrester / type 1 / compact - max. 30 kA, 255 - 440 V | ATSHOCK TT series
Geared towards TT and TNS power supplies systems, compact of design and super-efficient, the device protects against surges in power lines. Excessive voltages need protection against as they happen briefly. The little device works through electronic activation that uses an internal combination of spark gaps. Better than the very best.