Danfoss VLT Low Harmonic Drives

VLT® Low Harmonic Drive – it is the combination of VLT frequency converters, such as VLT® HVAC Drive, VLT® AQUA Drive, VLT® Automation Drive with advanced AAF active filter. The Low Harmonic Drive series meet the toughest requirements concerning harmonic disturbances.

• power range: 132-710kW / voltage range: 380 – 480 V
• harmonic mitigation performance: <5% THD
• meets the requirements of standards: IEEE519 for Isc/IL>20 and EN/IEC61000-3-4 / IEC61000-3-12
• dedicated to generator-supplied installation, installation with a reserve generator, for ‘soft’ power supply of high fault impedance
• module enclosure
• configuration as VLT standard drives
• enclosure type: IP21, IP54