The AHF Advanced Harmonic Filters series splits into two main variants based on distortion reduction performance.
Power handling extends up to 250 kW across the range, with voltage compatibility covering 380-415V at 50 Hz, 440-480V at 60 Hz, 500-525V at 50 Hz, and 690V at 50 Hz configurations. Current ratings start at 10A for smaller applications and scale up to 480A for higher-demand installations. Operating temperature range spans 5-45°C, covering most industrial environments. The units use passive filtering technology rather than active electronic systems, which contributes to their reliability and low maintenance requirements. Cooling approaches vary depending on size - smaller models rely on natural convection while larger units incorporate integrated variable-speed fans. Standard enclosure protection is IP20, though IP21/NEMA 1 upgrade kits are available when environmental conditions demand better sealing. Housing design prioritizes space efficiency, particularly useful for retrofit projects where panel space is already constrained. The compact footprint typically requires less room than traditional harmonic trap filters while delivering superior harmonic reduction performance. AHF 010 units perform comparably to 12-pulse rectifiers but often cost less to implement. IEEE519 compliance varies between the two variants - AHF 005 meets standards under all operating conditions, while AHF 010 compliance depends on specific grid and load characteristics. For applications requiring parallel operation to achieve higher current ratings, multiple units can be connected together.
