Wallis 24VDC Surge Arrestor
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WSP- A1SPM/20/30R is a type 2 surge arrester according to EN 61643-11. The device consists of a base part and pluggable module. 

These arresters are recommended for use in the Lightning Protection Zones.  Concept at the boundaries of LPZ 1-2 (according to IEC 1312-1 and EN 62305) for equipotential bonding and elimination of transient overvoltage that originate during atmospheric discharges or switching processes.

The main use of the WSP- A1SPM/20/30R arrester is in all kinds of industry, residential and administration buildings. They are to be placed into the secondary switchboards or into the control box.

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