Plug-in surge arrester 3EN2, metal-oxide (MOV), 3EH/3EN plug-in series for enclosed equipment connections — detailed ratings on request

• Official product family under Switching Products → Surge Arresters → Plug-In Surge Arresters (3EH / 3EN) in the GT product hierarchy, alongside 3EH2, 3EH4 and 3EH5
• Plug-in arrester concept: connection to the protected equipment via a plug-and-socket interface rather than open air-insulated terminals — the segment the MV catalog covers as 'plug-in applications', protecting encapsulated switchgear and transformers
• Based on the gapless metal-oxide varistor (MOV) — the core of every Siemens Energy arrester: low resistance during surges, high resistance in normal operation, stable characteristics over lifetime
• From a manufacturer that has designed and built medium- and high-voltage surge arresters since 1925, with type tests performed in independent PEHLA-certified laboratories and a routine test certificate shipped with every arrester
• Family-specific electrical and mechanical data for 3EN2 is not part of the current published MV catalog (which details the 3EH4 plug-in line) — detailed ratings, connector interfaces, dimensions and ordering data are available on request