175H4428 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
The Danfoss 175H4428 is part of the VLT 3000 Variable Speed Drives series and has a power rating of 22.0 kW with an efficiency of 0.96. This variable speed drive features an included brake module, integrated RFI filter, and thermal protection with both electronic and thermistor types. The IP20 enclosure, a weight of 49.0 kg, and maximum motor cable length of 300 meters complete its robust design.
Internal Product Review
The Danfoss 175H4428 is a VLT 3000 variable speed drive with a 22.0 kW power rating and an IP20 enclosure. An included brake module and included RFI filter support clean integration in controlled industrial panels. Integrated electronic thermal protection with thermistor adds dependable motor safeguarding, making 175H4428 a strong choice for consistent drive performance.
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Product Description:
The 175H4428 is a variable frequency drive produced by Danfoss for the VLT 3000 Variable Speed Drives series. Acting as the power interface between a three-phase supply and an AC induction motor, the unit varies output voltage and frequency so control systems can adjust speed and torque on conveyors, pumps, and fans. By replacing mechanical throttling with electronic regulation, the drive can reduce unnecessary energy consumption while maintaining consistent process performance. Its operating principle makes it suitable for industrial systems that require adjustable motor speed under changing load conditions.
The drive delivers a continuous output of 22.0 kW, and it operates with an efficiency of 0.96 at nominal load, reducing waste heat inside the control cabinet. An IP20 enclosure prevents accidental contact with live parts while permitting natural convection through the chassis. An integrated electronic and thermistor protection system monitors internal conditions and motor temperature sensors to help prevent overheating. A factory-installed brake module absorbs regenerated energy during rapid deceleration, while an RFI filter suppresses conducted emissions on the mains side. The unit has a panel depth of 296 mm, a width of 308 mm, and a height of 950 mm. Field terminals accept conductors up to 35.0 mm², allowing the inverter to serve high-current motors without external junction boxes.
The mounting points have a vertical spacing of 930 mm and a lateral spacing of 270 mm, allowing the frame to fit compatible enclosures without adapter plates. A vertical clearance of 200 mm must be maintained above the heat sink to provide adequate airflow. The unit has a mass of 49.0 kg, so suitable lifting equipment should be used during installation or removal. Motor leads may extend up to 300 m, supporting installations in which the motor is positioned far from the drive cabinet. The input contactor may be cycled up to 2 times per minute without placing excessive stress on the power stage. Cable routing should maintain the required airflow clearances and provide adequate support for the permitted conductor size.
