Variable Frequency Drive Converter Single Phase 1 in 3 Out Controller AC for Motor CNC Item Type: Variable Frequency Drive Parameter Power (KW) Input Voltage (V) Output Voltage (V) Frequency Range(Hz) AT1-1500S 1.5 1 Phase 220 3 Phases 0-220 0-400 AT1-2200S 2.2 1 Phase 220 3 Phases 0-220 0-400 Shell Material: ABS Plastic Power Phase Number: 1 phase. Filter: Built in filter. Control Method: V/F closed loop. Product Sizes(including knob): (width x height x thickness) Approx. 130 x 195 x 109mm / 5.1 x 7.7 x 4.3in (manual measurement has an error within 3%). Applicable Equipment: For motor, mixer, ball mill, water pump, cranes, conveyor, air compressor, fan, CNC machine tool, etc.