Iec 61439-1 Standard Pdf ^new^
document for the entire IEC 61439 series. It defines the fundamental definitions, service conditions, and technical characteristics applicable to all types of low-voltage assemblies (up to 1,000 V AC or 1,500 V DC).
document for the entire IEC 61439 series. It defines the fundamental definitions, service conditions, and technical characteristics applicable to all types of low-voltage assemblies (up to 1,000 V AC or 1,500 V DC).