Harmonic Filters
Enerdoor offers a range of passive harmonic filters for harmonic currents available up to 300A with voltage up to 480Vac. Together, Enerdoor and Finmotor have more than 20 years radio frequency interference experience and have developed the harmonic filter series to solve harmonic disturbance and power quality issues by compensating current harmonic and power factor correction.
The FINHRM and FINHRM2 passive harmonic filters offer different levels of attenuation to provide the market with the best compromise to meet the EN61000-3-2, EN61000-3-12 and IEEE519 International Standards. Custom harmonic filters are available for voltage up to 690Vac.
View Harmonic Filters Brochure
Part No. | Type | Rated Currents | Nominal Voltage | Characteristics |
FINFF 3% - 230 Vac | Line Reactor 3% | 2.5 - 250A | 230 Vac | Frequency range 50-60Hz |
FINFF 3% - 400 Vac | Line Reactor 3% | 1 - 865A | 400 Vac | Frequency range 50-60Hz |
FINFF 3% - 480 Vac | Line Reactor 3% and 5% | 1 - 750A | 480 Vac | Frequency range 50-60Hz |
FINFF 5% - 230 Vac | Line Reactor 3% and 5% | 2.5 - 250A | 230 Vac | Frequency range 50-60Hz |
FINFF 5% - 400 Vac | Line Reactor 5% | 1 - 865A | 400 Vac | Frequency range 50-60Hz |
FINFF 5% - 480 Vac | Line Reactor 3% and 5% | 1 - 750A | 480 Vac | Frequency range 50-60 Hz |
FINHRM | Passive Harmonic | 10 - 200A | 480 Vac | THDI reduction <15%, frequency range 50-60Hz |
FINHRM5 | Passive Harmonic | 10 - 750A | 480 Vac | Current THD <5%, frequency range 50-60Hz |
FINHRM5C | Passive Harmonic | 10 - 750A | 480 Vac (HV version up to 690 Vac) | Current THD <5%, frequency range 50-60Hz |
Active Harmonic Filters
Over the last 20 years Enerdoor has developed the active harmonic filter series - the FINHRMAD to solve harmonic disturbance and power quality issues by compensating current harmonics and power factor correction generated by industrial loads.
View Enerdoor's complete product range here.
For further information on Harmonic Filters, please call: 01444 243 452 or email: .(JavaScript must be enabled to view this email address).

Enerdoor
Enerdoor is part of The Enerdoor Group which consists of Enerdoor in North America and Europe; Finmotor and Finlab in Italy; and Eichhoff Elektro in Hungary.
The group is an international leader in the development and production of electromagnetic solutions for automated and industrial machinery.
The broad range of products include: EMI/RFI Filters, Motor Protection, Harmonic Filters, Line Reactors, Surge Arresters, Voltage Stabilisers and Customised Solutions.
Further information:
You can find further information on Enerdoor using the following links:
Tel: 01444 243 452
Fax: 01444 870 722
Email: enquiries@gdrectifiers.co.uk