1: Busbar input 1 (top), busbar input 2 (bottom); L1, L2 and L3 in each case. 3: Control panel for isolator Q1. IEC 61439 is a standard developed by the International Electrotechnical Commission (IEC) that covers design verification for low-voltage electrical products and assemblies. The IEC 61439. Reliable components and systems are essential in ensuring smooth power distribution in buildings and industrial plants. With SIRIUS, SENTRON, SIVACON and ALPHA, we offer an innovative portfolio for standard-compliant and demand-oriented applications. In no event shall ABB be liable for direct, indirect, special, incidental, or consequential damages of any nature or kind arising from the use of this document, nor shall ABB be liable for incidental or consequential damages arising from use of any software. In low-voltage power distribution, the cabinet is never just a cabinet, and the busbar is never just a strip of copper. In most assemblies you will find horizontal main bars, vertical risers, neutral and equipment-ground buses, and purpose-designed.
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