Siemens 3 Phase Surge Protector, 100kA, DIN Rail Mount - 5SD7412-1

The Siemens 5SD series is a Lightning arresters,type 1 with requirement class B. 1+1 circuit for TN-S and TT systems with remote display.It has Protection class rating of IP20 PDT contact is used for swiching of remote signalling Type of distributive system is TT,TN-S.