Combination arrester, type 1+2, requirement class B+C, UC 350V, pluggable protective modules 4-pole, 3+1 circuit for TN-S and TT systems with remote display
Combination arrester, type 1+2, requirement class B+C, UC 350V, pluggable protective modules 4-pole, 3+1 circuit for TN-S and TT systems with remote display