The standard DIN EN / IEC 61439 replaced the standard 60439 at the end of 2014. The standard describes the design and test specifications for low-voltage switchgear combinations. The standard defines the safety requirements for devices that are used to distribute electrical energy in industry, in private households and on construction sites. The standard guarantees a higher safety standard and is used, for example, for energy distributors, switchgear and distribution cabinets. More information