DIN EN IEC 62477-1:2024-09

This document applies to products with power electronic converters whose rated mains voltage does not exceed 1 000 V AC or 1 500 V DC. It specifies requirements for reducing risks from fire, electric shock, heat, energy, and mechanical hazards, excluding requirements for functional safety as defined in IEC 61508 (all parts). The purpose of this document is to establish uniform terminology and a basis for safety requirements for products containing power electronic converters that are applicable to several IEC Technical Committees. This document also applies to PECS which intentionally emit or receive radio waves for the purpose of radio communication. This document can also be used as a reference standard for product committees producing product standards for: - adjustable speed electric power drive systems (PDS); - standalone uninterruptible power systems (UPS); - low voltage stabilized DC power supplies; - bidirectional power converters. For PECS and their specified accessories for which no product standard exists, this document provides minimum requirements for safety aspects. This document: - establishes a common terminology for safety aspects relating to PECS; - establishes minimum requirements for the coordination of safety aspects of interrelated parts within a PECS; - establishes a common basis for minimum safety requirements for the PECS portion of products that contain PECS; - specifies requirements to reduce risks of fire, electric shock, thermal, energy and mechanical hazards, during use and operation and, where specifically stated, during service and maintenance; - and specifies minimum requirements to reduce risks with respect to PECS designed as pluggable and permanently connected equipment, whether it consists of a system of interconnected units or independent units, subject to installing, operating and maintaining the PECS in the manner prescribed by the manufacturer. This document does not cover: - telecommunications apparatus other than power supplies to such apparatus; - functional safety aspects as covered by, for example, IEC 61508 (all parts); - and electrical equipment and systems for railways applications and electric vehicles.