The VAL-MS-T1/T2 varistor-based lightning protector was specially designed to meet the requirements of BS 62305 lightning protection classes III and IV.

All the poles, including the N-PE residual current spark gap, are testable and pluggable and feature a thermal isolation device as well as a dedicated status display. Its integrated telecommunications contact allows for continuous function monitoring.

The lightning protectors are designed so that they can be used in 230/400 V AC power supplies, even if voltage fluctuations are expected. Different models are available for all standard applications such as TT, TN-S and TN-C.

A new latch holds the plugs securely in the base element so they stay in place even when exposed to strong electrodynamic effects from powerful lightning surge currents and strong vibrations at the installation location. The latch can be easily removed for insulation measurements or tests.

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