Power supply unit PS 2407 (TU U 31.1-30425613-003:2010; permission to applying of Ukraine №1190.14.12) converts unstabilized DC voltage from 175 … 345 VDC range into the stabilized 24 VDC voltage, galvanic isolated from the primary power supply in high humidity conditions. A typical application - power supply to signaling circuits and lighting of mine electric locomotives. The maximum load current is 7 A.