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In mines and related industries, worker safety is one of the most important issues in these industries, along with their extraction and optimal exploitation. Therefore, in order to exploit and extract optimally and prevent the occurrence of errors and perform processes in the optimal period of time, they require the use of UPS and uninterrupted power supplies. Various UPS and power supply products of the PSP company are suitable for critical and important loads with AC and DC voltage levels. In such industries, where ambient temperature and dust play a significant role in the vulnerability of equipment, a higher degree of protection for UPS systems has a great importance. Another thing that is used in these industries is the melting and concentrating rectifiers of the metal and mineral industries, which have high currents and are produced in the PSP company.