The VLT® Advanced Harmonic Filter is a passive harmonic filter specially designed to match the Danfoss frequency converters VLT® AutomationDrive, VLT® AQUA Drive and VLT® HVAC Drive. With AHF 010 connected in front of the Danfoss VLT® the harmonic current distortion generated back to the mains is reduced to maximum 10% at full load.
IP20 to Type 1/NEMA conversion kit: 175U3281
Type 1/NEMA conversion kit with capacitor disconnect: 175U5909
THiD less than 10%
Line voltage: 380-415V
Line frequency: 50Hz
Filter current: 251A
Line voltage tolerances: +/- 10%
Line frequency tolerances: +5% / -1.5%
Overload capacity: 160% for 60 sec. every 10 min.
Enclosure rating: 20
Cooling concept: Forced cooled by build-in fan
Efficiency: > 98%
Ambient temperature without derating: 5-45 ºC