Product Details – 130B1755 AHF-DB-025-460-60-20-A 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 AHF005 connected in front of the Danfoss VLT the harmonic current distortion generated back to the mains is reduced to maximum 5% at full load. Forced cooling is not included within IP00 types. Cooling must be secured separately d uring installation. Accessories: IP20 to Type 1/NEMA conversion kit: 130B3275 IP20 to Type 1/NEMA conversion kit with capacitor disconnect: 130B5904 Back plate: 130B3284 Specifications: THiD less than 5% Line voltage: 440-480V Line frequency: 60Hz Filter current: 025A 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 Enclosure: X2