Variable Frequency Drive 4kW 380V Three Phase Motor Inverter Precise Speed Control Energy Saving

SU300 Variable Frequency Drive (VFD) 4 kW 380 V 3PH to 3PH Overview A compact, versatile frequency converter from the SU300 series designed for industrial automation. The SU300 family covers 0.75 to 5.5 kW with models for 220 V and 380 V systems. This listing is for the 4 kW, 380 V, threephase input to threephase output unit. Key benefits Precise motor control: Provides smooth speed and torque control for threephase induction motors, reducing mechanical stress and improving process stability. Broad compatibility: Part of the 0.75 to 5.5 kW SU300 range and available for both 220 V and 380 V systems. This specific unit is rated 4 kW at 380 V with threephase input and output. Easy installation and setup: Compact form factor and straightforward wiring reduce installation time and simplify replacement of existing drives. Reliable operation: Designed for continuous industrial use with stable control performance to support automation processes. Space efficient: Rightsized housing for convenient storage and integration into control cabinets. Key specifications Series: SU300 Rated power: 4 kW Input voltage: 380 V threephase Output voltage: 380 V threephase Available series range: 0.75 to 5.5 kW, models for 220 V and 380 V systems Primary function: Variable frequency drive for speed and torque control of threephase motors How it solves common problems Replaces manual or fixedspeed motor control with adjustable speed operation, enabling better process matching and reduced mechanical wear. Provides controlled soft starts and stops to minimize current surges and reduce stress on belts, couplings, and gearboxes. Allows fine tuning of motor speed to match production requirements, improving throughput consistency. Practical use scenarios Conveyor systems: Regulate conveyor speed for packing, sorting, or assembly lines to synchronize with upstream and downstream equipment. Pumps and fans: Adjust pump or fan speeds to meet varying flow or pressure demands in HVAC, water treatment, or process systems. Machine tools and automation equipment: Control spindle speed or drive auxiliary motors on CNC machines, packaging machines, and robotic cells. Installation and operation notes Ensure compatibility with motor nameplate ratings and supply voltage prior to installation. Follow standard wiring and grounding practices for threephase drives. Commissioning typically includes setting motor parameters, acceleration and deceleration profiles, and any required control inputs or outputs. For systems originally designed for singlespeed motors, review mechanical coupling and load characteristics when enabling variable speed operation. Performance and maintenance Delivers consistent control of motor speed and torque for industrial applications. Periodic inspection of cooling pathways and electrical connections supports longterm reliability. Compact design simplifies replacement or upgrades in existing control cabinets. This SU300 4 kW 380 V 3PH3PH VFD provides a practical, compatible solution for industrial motor control needs within the 0.75 to 5.5 kW product family, offering precise control, reliable performance, and easy integration into automation systems.