Frequency ConverterFC-101PK37T4E20H4XXCXXXSXXXXAXBXCXXXXDXVLT® HVAC Drive FC- 101(PK37) 0.37 KW / 0.50 HP, Three phase380 - 480 VAC, (E20) IP20 / ChassisRFI class A1 (C2)No brake chopperNo Loc. Cont. PanelCoated PCB, No Mains OptionNo A Option, No B OptionNo C1 option, No D optionFrame: H1