GIS surge arrester 3ES4, metal-oxide, metal-enclosed for gas-insulated switchgear — detailed ratings on request

• Official product family in the Surge Arresters product line, Gas Insulated Arresters (3ES/T/Y) group — dedicated overvoltage protection for gas-insulated switchgear (GIS)
• Metal-oxide active part with strongly nonlinear characteristic: negligible current at continuous operating voltage, low-resistance conduction during lightning and switching surges — no series gaps
• Enclosed, gas-insulated construction connects directly to the switchgear so equipment insulation is protected close to the source of overvoltage stress
• Part of the Siemens Energy GIS arrester range covering AC/DC system voltages from 72.5 kV up to 800 kV; the range also includes a clean-air surge arrester variant
• Type-tested arrester portfolio according to IEC and IEEE standards; manufactured in Berlin, Germany and Wuxi, China
• Family-specific ratings (Ur, Uc, nominal discharge current In, energy handling, dimensions) available on request