IEC 63522-33:2025 This part of IEC 63522 is used for testing all kind of electrical relays and for evaluating their ability to perform under expected conditions of transportation, storage and all aspects of operational use.
This document provides test methods to ensure that the connection between an earthing terminal and parts required to be connected thereto is of low resistance.
PUBLISHED
EN IEC 63522-33:2025
60.60
Standard published
Oct 17, 2025