DIN EN IEC 63522-12:2025-09

This document is used for testing electromechanical elementary relays (electromechanical relays, reed relays, reed contacts, reed switches and technology combination of these) and evaluates their ability to perform under expected conditions of transportation, storage, and all aspects of operational use. This document defines a standard test method to provoke internal moisture inside relays by different methods. The device under test (DUT) is tested at its specified energization values throughout the defined temperature range. The test methods in this document are applicable to RT III, RT IV and RT V products only, that is wash-tight, sealed, and hermetically sealed DUTs. The standard describes test methods and evaluation. Application of this standard increases investment security for manufacturers and users, while testing laboratories and manufacturers are provided with defined specifications for testing.