Electrical relays - Tests and measurements - Part 21: Thermal endurance
STANDARD published on 1.3.2026
Designation standards: ČSN EN IEC 63522-21
Classification mark: 353413
Catalog number: 522945
Publication date standards: 1.3.2026
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
This part of IEC 63522 is used for testing along with the appropriate severities and conditions for measurements and tests designed to assess the ability of DUTs to perform under expected conditions of transportation, storage and all aspects of operational use.
This document defines a standard test method for evaluation of resistance against high temperature for long periods