... Three phase four wire:100V,220V(380V),240(415V),Above-mentioned can be connected directly.The following should be connected withh voltage transformers ... :380/100V,500/100V,3K/100V,10K/100V,15K/100V,35K/100V......cURRENT:1A,5A The ... be connected directly.The current circuits connected is 5A or 1A,Wattmeters and Varmeters with and single phase,which can be used ...