KONTRAC PN 50 MS is used as the power supply for all consumers in modern air-conditioned coaches on European railways. It is powered by any of four UIC voltages and serves as the source of electric energy for the coach air-conditioning system, all single-phase and three-phase consumers, as well as for charging batteries and power supply of all DC consumers on board a passenger coach. Switching to another UIC system is performed automatically and without external supervision.
