Combined arrester, ZP, compact design for NAR to 40-mm SAS in snap-on technology, type T1+T2+T3, with external lightning protection 12.5 kA, TNC system 3P, free from leakage current, voltage tap with integrated fuse, signal white RAL 9003 colour. The compact design (2 division units = 36 mm in width) allows installation between 2 SH switches and an additional infeed adapter.