This document describes as a minimum, the technical requirements and general responsibilities regarding the safety, design, supply, manufacture, population, type-testing, performance, constructional and routine testing, delivery to site, site erection, site testing and. This document describes as a minimum, the technical requirements and general responsibilities regarding the safety, design, supply, manufacture, population, type-testing, performance, constructional and routine testing, delivery to site, site erection, site testing and. Design requirements for low voltage distribution boxes cover NEC, IEC, and safety standards to ensure reliable, compliant electrical installations. You must make safety your top priority when working with low voltage distribution boxes. Design requirements help you follow important standards like. Power Distribution Boards, Motor Control Centers and Distribution Boards © Siemens 2020 We are there when you need us Your personal contact can be found at www. SCOPE This document describes as. ents), and the electrical equipment, formed by the internal connections and by the incoming and outgoing termina is regard, there has been an evolution which has resulted in the replacement of the previous Standard IEC 60439 with the present Stand rd IEC 61439. In particular, at international. Real World Impact: A European manufacturing plant experienced regular shutdowns costing €500K monthly – traced to incompatible components assembled without following IEC 61439 verification protocols.