Feature: 1. GOOD HEAT DISSIPATION: Using 24V DC cooling fan, external aluminum heat dissipation base, bring efficient heat dissipation 2. 2 LAYERBOARD: Simplified layout with double layer board design, PCB board is treated with three proof paint, possess simple structure and low failure rate 3. HIGHLIGHT DIGITAL DISPLAY: Variable frequency drive using humanized operation, highlight red digital tube display, avoid misoperation, very practical 4. FIRE RESISTANT ABS MATERIAL: Pay attention to safety, ABS fire resistant and heat resistant plastic material shell, the terminal is fully surrounded by design to avoid the danger of electric shock 5. STABLE PERFORMANCE: Input voltage is 380V 50‑60Hz, output voltage is 380V 0‑650Hz, rated power for 2.2KW, rated current for 5A Specification: Item Type: Variable Frequency Drive Material: ABS, aluminum Input Voltage: 3PH 380V 50-60Hz Output Voltage: 3PH 0-380V 0-650Hz Rated Power: 2.2KW Rated Voltage: 5A Size: Approx. 82 x 130 x 155mm / 3.23 x 5.12 x 6.1in(manual measurement, there is a certain error). Package List: 1 x Variable Frequency Drive1 x User Manual Note: 1. Please install under professional guidance.2. Install the AC drive indoors and avoid direct sunlight, dust, corrosive or flammable gas, oil fume, steam, water or any other liquid entering and salt.