Simulation of Laws Change in Technical Characteristics of Circuit Breakers of Various Manufacturers

The article discusses the technical characteristics and selection criteria for the performance parameters of low-voltage electrical devices from various manufacturers: Legrand, ABB, Schneider electric, Chint, IEK, Contactor, DEKraft. A comparative analysis of the operating parameters and cost indicators of circuit breakers of various types and manufacturers is carried out. Approximating models of functional dependences of changes in power losses in contact systems of low-voltage devices have been compiled using the example of automatic switches. The value of the standard deviation for the approximating functions is calculated and the approximating functions with the smallest standard deviation are determined. It was found that the logarithmic function is the most accurate for approximation.