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Overview EN IEC 61643-361:2026 specifies the requirements and test methods for surge isolation transformers (SITs) used in low-voltage distribution systems up to 1,000 V RMS at 50/60 Hz. Issued by CL…
IEC 61643-41:2025 Overview IEC 61643-41:2025 is an international standard published by the International Electrotechnical Commission (IEC) specifying requirements and test methods for surge protectiv…
Overview IEC 61643-351:2016 is an international standard published by the International Electrotechnical Commission (IEC) that defines the performance requirements and test methods for surge isolatio…
Overview IEC 61643-311:2013 is an international standard published by the International Electrotechnical Commission (IEC) that specifies performance requirements and test circuits for gas discharge t…
Overview IEC 61643-312:2013 is an international standard issued by the International Electrotechnical Commission (IEC) that focuses on gas discharge tubes (GDTs) used in low-voltage surge protective…
Overview IEC 61643-32:2017 is an international standard published by the International Electrotechnical Commission (IEC) that establishes the principles for selecting and applying low-voltage surge p…
Overview IEC 61643-341:2001 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies the requirements and test methods for thyristor surge suppress…
Overview IEC 61643-22:2015 is an international standard that defines selection and application principles for low-voltage surge protective devices (SPDs) used in telecommunications and signalling net…
Overview IEC 61643-21:2025 - "Low voltage surge protective devices - Part 21" specifies requirements and test methods for surge protective devices (SPDs) connected to telecommunications and signallin…
Overview IEC 61643-12:2020 - Low-voltage surge protective devices (SPDs) - Part 12: Selection and application principles - provides guidance for the selection, location, operation and coordination of…
Overview IEC 61643-331:2020 - Components for low-voltage surge protection - Part 331: Performance requirements and test methods for metal oxide varistors (MOV) - is the third edition (technical revis…
Overview IEC 61643-352:2018 is an international standard published by the International Electrotechnical Commission (IEC) that focuses on components for low-voltage surge protection, specifically Par…
Overview IEC 61643-331:2017 - Components for low-voltage surge protective devices - Part 331 - specifies performance requirements and test methods for metal oxide varistors (MOV). It applies to two‑e…
Overview IEC 61643-341:2020 is an international standard developed by the International Electrotechnical Commission (IEC) that establishes performance requirements and standard test circuits for thyr…
Overview IEC 61643-01:2024 is the latest international standard published by the International Electrotechnical Commission (IEC) outlining general requirements and test methods for low-voltage Surge…
Overview The IEC 61643-12:2008 standard, titled Low-voltage surge protective devices - Part 12: Surge protective devices connected to low-voltage power distribution systems - Selection and applicatio…
Overview IEC 61643-11:2025 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies the requirements and test methods for low-voltage surge protect…
Overview IEC 61643-31:2018 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies the requirements and test methods for low-voltage Surge Protect…
Overview IEC 61643-321:2001 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies the requirements for avalanche breakdown diodes (ABDs). ABDs a…
Overview IEC 61643-361:2026, published by the International Electrotechnical Commission (IEC), specifies requirements and test methods for surge isolation transformers (SITs) used in low-voltage powe…
Overview IEC 61643-332:2024 is an international standard published by the International Electrotechnical Commission (IEC) that focuses on components for low-voltage surge protection, specifically met…
Overview IEC 61643-11:2011 is an international standard published by the International Electrotechnical Commission (IEC) that defines the requirements and test methods for low-voltage surge protectiv…
Overview SIST EN IEC 61643-361:2026 specifies the requirements and test methods for surge isolation transformers (SITs) designed for low-voltage distribution systems operating at 50/60 Hz, with equip…
1 Scope This part of IEC 61643 applies to surge isolation transformers (SITs) dedicated to surge mitigation and for connection to 50/60 Hz power circuits and equipment rated up to 1 000 V RMS. This d…
What is BS EN IEC 61643 ‑ 331 about ? BS EN IEC 61643 ‑ 331 is the 331st of components for low-voltage surge protection in multi-series. BS EN IEC 61643 ‑ 331 is a test specification for metal oxide…
What is BS EN IEC 61643 ‑ 341 about ? BS EN IEC 61643 ‑ 341 is the 341st component for low-voltage surge protection in multi-series. BS EN IEC 61643 ‑ 341 specifies standard test circuits and methods…
1 Scope This part of IEC 61643 describes the principles for selection, installation and coordination of SPDs intended for use in Photovoltaic (PV) systems up to 1 500 V DC and for the AC side of the…
What is BS EN IEC 61643 ‑ 352 - Components for low-voltage surge protection about? BS EN IEC 61643 is a series on components for low-voltage surge protection. Components for low-voltage surge protect…
1 Scope This part of IEC 61643 is a test specification for metal oxide varistors ( MOV ), which are used for applications up to 1 000 V AC or 1 500 V DC in power line, or telecommunication, or signal…