1、EFFICIENT MOTHERBOARD: Variable frequency drive adopt excellent motherboard, intelligent and efficient, with strong protection performance and complete functions 2、FULL SMD DESIGN: All internal components of vector frequency converter adopt SMD design, which greatly increase the stability of the machine, stable and reliable 3、STRONG ABS MATERIAL: Inverter adopt industrial flame retardant ABS plastic material, has high impact resistance, high heat resistance, strong flame retardancy, good comprehensive performance 4、SIMPLE TO USE: 3 Phase vector frequency converter use humanized keyboard design, with clear digital display, easy for you to operate, simple and convenient 5、LOW NOISE AND GOOD COOLING: The super large heat sink of frequency inverter come with a small fan, the small fan ensure low noise and assist good heat dissipation Item Type: Vector Frequency Converter Material: Flame retardant ABS Input: Three phase 320V-460V 50-60Hz Output: Three phase 0-380V 0-999.9Hz Power: 3.7KW Cable: Approx. 1.5m / 4.9ft 1 x Variable Frequency Drive 1 x Connection Cable 1 x Control Panel 1 x User Manual