The main function of this charging system is to enable battery charging to be carried out without supervision and simultaneously supply the continuous load. The charger rectifier circuit is capable of delivery 100% of the rated current while float/boost/equal charger battery. The system is also suitable for maintained and non-maintain operation.These chargers conform to the following IEC 60146. Rated input supply voltage :3×400V, 3-wires or 4-wires Rated input supply frequency:50Hz or 60Hz Rated output voltage:12 600V Rated output current:0 1600A