New Passive Harmonic Filter FINHRM5C: UL Approved

The new Enerdoor FINHRM5C filter is the most advanced and innovative passive harmonic filter available with excellent attenuation of current harmonic distortion and overvoltage spikes.


Ensures IEEE-519 Compliance
Compact Size: One of the smallest in the industry
  • THD reduced to <5%
  • Rated current from 10 to 750A
  • Rated up to 690 Vac for the HV version
  • Low power loss and operating temperature
  • Improves flicker and power factor
  • Unaffected by network conditions
  • Reduces system loss due to harmonic distortion
This filter features a compact size and is one of the smallest in the industry taking up much less cabinet space than other passive harmonic filters. It ensures compliance with international IEEE-519 and IEC61000-3-12 harmonic standards, carries UL approval for the US and Canada, has support for applications up to 750A and reduces THD to <5%.
This series has a low operating temperature and uses Class H Materials (180°C) allowing the filter to be used in ambient environments up to 70°C without derating. Under an 8-hour strenuous test at full load, the FINHRM5C series maintained a temperature under 70°C (158°F).
THD Current without and with FINHRM5C Harmonic Filtering

With the FINHRM5C the end-user may ensure conformity with international harmonic emission standards, avoid utility fines for poor power quality, and mitigate issues that emerge from high harmonic emissions.

Power Loss Performance Comparing an Enerdoor HRM5C
vs Three Major Competitor Filters
As the graph demonstrates, the Enerdoor passive harmonic filter FINHRM5C has much less power loss than the competition. This means lower temperatures inside the cabinet, resulting in decreased heat dissipation and energy costs. 
View the Datasheet


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