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Gas-insulated surge arrester 3EY5, clean-air insulation (SF6-free), for gas-insulated switchgear

3EY5
  • Listed as '3EY5 Clean Air' in the official product hierarchy under Gas Insulated Arresters (3ES/T/Y), alongside the 3ES gas-insulated lines and the clean-air 3EY6
  • Clean-air insulation replaces SF6 with cleaned, dehumidified air (80% nitrogen, 20% oxygen) — an F-gas-free insulating medium with no gas accounting or handling restrictions
  • Carried in the gas-insulated arrester product line for use inside gas-insulated switchgear rather than open-air station mounting
  • Electrical and mechanical ratings for 3EY5 are provided on request
Gas-insulated switchgear protectionSF6-free substations
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Specifications

Documents & downloads

Datasheet 3EY5 ratings and specifications — available on request PDF · EN ·
Brochure Our portfolio of surge arresters & composite insulators — GIS & clean-air arrester segment (current online edition) View online · Download PDF ⭳

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