Danfoss VLT Low Harmonic Drives

The VLT® Low Harmonic Drive family combines VLT frequency converters such as the VLT® HVAC Drive, VLT® AQUA Drive, and VLT® Automation Drive with an advanced active filter (AAF). Devices in this series meet the most stringent requirements for harmonic distortion reduction.

• 132–710 kW / 380–480 V
• harmonic distortion reduction: <5% THD
• complies with standards: IEEE519 for Isc/IL>20 and EN/IEC61000-3-4 / IEC61000-3-12
• designed for installations powered by generators, backup-generator systems, and weak grids with high short-circuit impedance
• modular design
• configuration consistent with standard VLT drives
• enclosures available in IP21 and IP54