IEC TR 61643-333:2026
Components for low-voltage surge protection - Part 333: characteristic equations and life evaluation for metal oxide varistors (MOV)
OVERVIEW
IEC TR 61643-333:2026 presents the U-I/R-I characteristic equations and the life evaluation method for MOVs, which are used for applications up to 1 000 V AC or 1 500 V DC in power line, or telecommunication, or signalling circuits. They are designed to protect apparatus or personnel, or both, from high transient voltages.
This document specifically addresses the zinc-oxide type of MOVs.
COMMENTS
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PRODUCT DETAILS
| Status | Current |
|---|---|
| Edition | 2026 |
| No. of Pages | 40 |
| ICS Classification | 29.240.10 Substations. Surge arresters |
| Committee | TC 37/SC 37B |
| Available for Purchase | For sale in Singapore only |
| Adoption | IEC : 0 |