VLT Advanced Harmonic Filter AHF 005 010

VLT Advanced Harmonic Filter AHF 005 010
VLT Advanced Harmonic Filter AHF 005 010


VLT Advanced Harmonic Filter AHF 005 010

VLT® Advanced Harmonic Filter AHF 005 010
Optimize harmonic performance
Advanced Harmonic Filter AHF 005/010 is a cost-effective total solution, Danfoss Advanced Harmonic Solutions packages which combines the reliability and performance of VLT® Series drives with the innovative technology of AHF Series Filters. 
Compared to traditional harmonic trap filters they offer a smaller foot print and higher harmonic reduction. 
The solution is available in two variants, AHF 005 and AHF 010. When connected in front of a Danfoss VLT® drive, the harmonic current distortion generated back to the mains is reduced to 5% and 10% Total Harmonic Current Distortion at full load.
Line Voltage
380 – 415 V AC (50 and 60 Hz) 440 – 480 V AC (60 Hz)600 V AC (60 Hz)500 – 690 V AC (50 Hz)

Features & Benefits

Designed for matched performance with Danfoss VLT® Series drives
User-friendly startup; no adjustment necessary
Requires no routine maintenance
Protects multiple drives with one filter
Designed to address the current distortion limit guidelines of IEEE 519-1992
AHF 10 has THiD < 10%; equal or superior performance and cost competitive compared to 12-pulse rectifiers
AHF 05 has THiD < 5%; equal or superior performance and cost competitive compared to 18-pulse rectifiers

Line Voltage
380-415 VAC (50 Hz)
440-480 VAC (60 Hz)
500-525 VAC (50 Hz)
690 VAC (50 Hz)
Enclosure Rating
Chassis (IP00)
Overload Current
160% for 60 seconds
True Power Factor
0.85 @ 50% load
0.99 @ 100% load
Ambient Temperature
41º-104º F (5º-40ºC) without derating

Eclosure IP Rating
 IP 20*/IP 00** 
* Optional IP 21/NEMA 1 upgrade kit is available for the IP 20 unit. 
**Forced cooling is required. There is no fan in the IP 00 unit. Implement separate cooling measures in the cabinet as part of the installation.

Harmonic Calculation Software

With VLT® Motion Control Tool MCT 31, you can determine whether harmonics will be an issue in your installation when drives are added. 
MCT 31 estimates the benefits of adding various harmonic mitigation solutions from the Danfoss product portfolio and calculates system harmonic distortion. Furthermore the software provides quick indication of whether the installation complies with the most recognized harmonic norms and recommendations. 

With a >98% efficiency the passive Advanced Harmonic Filters offer cost effective and very robust harmonic solutions specifically for power up to 250 kW.
As stand-alone options the Advanced Harmonic Filters feature a compact housing that is easily integrated into existing panel space. This makes them well-suited for retrofit applications with limited adjustments of the frequency converter.


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