Registration number (WIID)Project No.TitleStatus
63293EN IEC 61643-331:2018Components for low-voltage surge protective devices - Part 331: Performance requirements and test methods for metal oxide varistors (MOV)Atcelts
79126EN IEC 61643-361:2026Low-voltage surge protective devices - Part 361: Surge isolation transformers (SITs) connected to low-voltage distribution system - Requirements and test methodsIzstrādē
47113prEN 61647-2Components for low-voltage surge protection devices - Part 2: Specifications for Avalanche Breakdown Diode (ABD)Izstrādē
68047EN IEC 61643-341:2020Components for low-voltage surge protection - Part 341: Performance requirements and test circuits for thyristor surge suppressors (TSS)Izstrādē
68389prEN IEC 61643-321Components for low-voltage surge protective devices - Part 321: Performance requirements and test circuits for silicon PN-junction voltage limitersIzstrādē
62342EN IEC 61643-352:2018Components for low-voltage surge protection - Part 352: Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs)Izstrādē
47849FprEN 61643-312Components for low-voltage surge protective devices - Part 312: Preferred values and characteristics for gas discharge tubesIzstrādē
47282EN 61643-311:2013Components for low-voltage surge protective devices - Part 311: Performance requirements and test circuits for gas discharge tubes (GDT)Izstrādē
60190EN 61643-351:2017Components for low-voltage surge protective devices - Part 351: Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)Izstrādē
Displaying 21-29 of 29 results.