... soft starting on grid solar inverterhigh quality and competitive pricetransformerless,own more efficiency,compact and lightcombine with controller,simplify the system,reduce costused for roof system and ground ... 3kw for three phasethree types:on grid,off grid,on-off grid typeson-off grid is the special and uniquethe inverter can be used for solar system,wind turbine use IPM mould ...