Frequency converter AutomationDrive FC-301,(P37K) 37 KW / 50 HP,,Three phase, 200 - 240 VAC,(E20) IP20 / Chassis,RFI Filter,No brake chopper,Graphical Loc. Cont. Panel,Not coated PCB, No Mains Option,Latest release std. SW.,Frame: C4,No A Option, No B Option,No C1 option, No D option