Product Details – 130B1180 AHF-DA-066-400-50-20-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 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. Forced cooling is not included within IP00 types. Cooling must be secured separately d uring installation. Accessories: IP20 to Type 1/NEMA conversion kit: 130B3277 IP20 to Type 1/NEMA conversion kit with capacitor disconnect: 130B5906 Back plate: 130B3286 Specifications: THiD less than 10% Line voltage: 380-415V Line frequency: 50Hz Filter current: 066A 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: X4