SIOV metal oxide varistors Housed (ThermoFuse) varistors, AdvanceD series Series/Type: ETFV25 Date: April 2011 EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS prior express consent is prohibited. EPCOS AG is a TDK Group Company.Housed varistors ETFV25 ThermoFuse varistors, ETFV25 series Construction Round varistor element, leaded Coating: epoxy resin, flame-retardant to UL 94 V-0 Terminals: tinned copper wire, metal compound wire Housing: thermoplastic, flame-retardant to UL 94 V-0 Features Wide operating voltage range 115 420 V RMS Self-protected under abnormal overvoltage conditions Very high surge current ratings of 20 kA Approvals UL IEC VDE Applications Air conditioner, refrigerator, TV, etc. Power meter, inverter, telecom equipment, etc. Transient voltage surge suppressors (TVSS) Solar inverter Delivery mode Bulk (standard) Typical applications General technical data Climatic category to IEC 60068-1 40/85/56 Operating temperature to IEC 61051 40 ... + 85 C Storage temperature 40 ... + 85 C Electric strength to IEC 61051 2.5 kV RMS Insulation resistance to IEC 61051 100 M Response time < 25 ns Please read Cautions and warnings and Page 2 of 15 Important notes at the end of this document.