BPS12.5V is lightning and surge arrester type 1+2 according to EN 61643-11. These are recommended for use in the Lightning Protection Zones Concept at the boundaries of LPZ 0 – 1. Pluggable type with compact size of 18mm per pole.
B15V arrester is MOV type, DIN modular SPD in according to EN61643. It's widely used in hospitals, banks, mobile operator stations, water-stations, power plants, airport buildings for air traffic control and all structures with explosive risk.
Class I+II/B+C, Type 1+2, pluggable type encapsulated spark gap surge arrester, high surge current capability and low voltage protection level, for replacement of DEHN's DB M 1 320 FM, DV M TT255 FM, DV M TNS 255 FM and DV M TNC 255 FM series