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Harmonic & SineWave Filters for VFDs

For variable frequency drives (VFDs), filters are essential components. They greatly contribute to the VFD's and connected motor's reliability, performance, and service life. These devices address problems like electromagnetic interference (EMI), harmonic distortion, and voltage spikes that can affect not only the drive but also surrounding equipment.

Harmonics are unwanted components that degrade the electrical waveform—the very thing we think of as "electrical power"—and they can cause all sorts of problems, from overheating transformers and motors to making sensitive equipment malfunction. A must-have for any VFD is a harmonics filter: an electrical component that keeps the VFD away from its neighbors and makes the whole system work more efficiently. Harmonic filters do the opposite of what harmonics do: they make certain frequencies go away, which keeps the power clean.

The sine wave filter is a conversion device that takes the pulse-width modulated (PWM) output from variable frequency drives (VFDs), and with it, gives rise to a sinusoidal waveform. This type of filtered output is necessary to ensure not only reliable but also efficient operation of electric motors—particularly those with long cables or in applications where the motor's sensitive components are prone to frequencies deemed undesirable.

Products

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Eaton HCU2235D6N12 - HCU2 active harmonic correction unit, 600 VAC, NEMA 12, 235 Amp, 9.9 kW
Eaton HCU2235D6N12 - HCU2 active harmonic correction unit, 600 VAC, NEMA 12, 235 Amp, 9.9 kW
$175327.12 $222956.12
Eaton HCU2235D6N12 - Active Harmonic Correction unit, 235A, 9.9 kW watt loss, 600V rating, 50/60 Hz, Three-phase, Floor-mount, NEMA 12 enclosure
Eaton HCU2235D6N2 - HCU2 active harmonic correction unit, 600 VAC, NEMA 2, 235 Amp, 9.9 kW
Eaton HCU2235D6N2 - HCU2 active harmonic correction unit, 600 VAC, NEMA 2, 235 Amp, 9.9 kW
$175327.12 $222956.12
Eaton HCU2235D6N2 - Active Harmonic Correction unit, 235A, 9.9 kW watt loss, 600V rating, 50/60 Hz, Three-phase, Floor-mount, NEMA 2 enclosure
Eaton HCU2133D7N2 - HCU2 active harmonic correction unit, 690 VAC, NEMA 2, 133 Amp, 8.2 kW
Eaton HCU2133D7N2 - HCU2 active harmonic correction unit, 690 VAC, NEMA 2, 133 Amp, 8.2 kW
$133587.27 $169877.30
Eaton HCU2133D7N2 - Active Harmonic Correction unit, 133A, 8.2 kW watt loss, 690V rating, 50/60 Hz, Three-phase, Floor-mount, NEMA 2 enclosure
Eaton HCU2157D6N2 - HCU2 active harmonic correction unit, 600 VAC, NEMA 2, 157 Amp, 7.2 kW
Eaton HCU2157D6N2 - HCU2 active harmonic correction unit, 600 VAC, NEMA 2, 157 Amp, 7.2 kW
$124775.26 $158671.45
Eaton HCU2157D6N2 - Active Harmonic Correction unit, 157A, 7.2 kW watt loss, 600V rating, 50/60 Hz, Three-phase, Floor-mount, NEMA 2 enclosure
Eaton HCU2094D6N12 - HCU2 active harmonic correction unit, 600 VAC, NEMA 12, 94 Amp, 3.9 kW
Eaton HCU2094D6N12 - HCU2 active harmonic correction unit, 600 VAC, NEMA 12, 94 Amp, 3.9 kW
$101764.20 $129409.25
Eaton HCU2094D6N12 - Active Harmonic Correction unit, 94A, 3.9 kW watt loss, 600V rating, 50/60 Hz, Three-phase, Floor-mount, NEMA 12 enclosure
Eaton HCU2094D6N2 - HCU2 active harmonic correction unit, 600 VAC, NEMA 2, 94 Amp, 3.9 kW
Eaton HCU2094D6N2 - HCU2 active harmonic correction unit, 600 VAC, NEMA 2, 94 Amp, 3.9 kW
$96977.29 $123321.94
Eaton HCU2094D6N2 - Active Harmonic Correction unit, 94A, 3.9 kW watt loss, 600V rating, 50/60 Hz, Three-phase, Floor-mount, NEMA 2 enclosure
Eaton HCU2300D5N2 - active harmonic correction unit, 480 VAC, NEMA 2, 300 Amp, 7.1 kW
Eaton HCU2300D5N2 - active harmonic correction unit, 480 VAC, NEMA 2, 300 Amp, 7.1 kW
$90302.50 $114833.89
Eaton HCU2300D5N2 - Active Harmonic Correction unit, 300A, 7.1 kW watt loss, 380-480V rating, 50/60 Hz, Three-phase, Floor-mount, NEMA 2 enclosure
Eaton HCU2300D5N12 - HCU2 active harmonic correction unit, 480 VAC, NEMA 12, 300 Amp, 7.1 kW
Eaton HCU2300D5N12 - HCU2 active harmonic correction unit, 480 VAC, NEMA 12, 300 Amp, 7.1 kW
$109765.76 $139584.49
Eaton HCU2300D5N12 - Active harmonic correction unit, 300A, 7.1 kW watt loss, 380-480V rating, 50/60 Hz, Three-phase, Floor-mount, NEMA 12 enclosure
Eaton HCU2200D5N2 - HCU2 active harmonic correction unit, 480 VAC, NEMA 2, 200 Amp, 5.4 kW
Eaton HCU2200D5N2 - HCU2 active harmonic correction unit, 480 VAC, NEMA 2, 200 Amp, 5.4 kW
$75819.04 $96415.87
Eaton HCU2200D5N2 - active harmonic correction unit, 200A, 5.4 kW watt loss, 380-480V rating, 50/60 Hz, Three-phase, Floor-mount, NEMA 2 enclosure
Eaton HCU2200D5N12 - HCU2 active harmonic correction unit, 480 VAC, NEMA 12, 200 Amp, 5.4 kW
Eaton HCU2200D5N12 - HCU2 active harmonic correction unit, 480 VAC, NEMA 12, 200 Amp, 5.4 kW
$84855.13 $107906.69
Eaton HCU2200D5N12 - Active Harmonic Correction unit, 200A, 5.4 kW watt loss, 380-480V rating, 50/60 Hz, Three-phase, Floor-mount, NEMA 12 enclosure
Eaton HCU2300D5IP31 - HCU2 active harmonic correction unit, NEMA 1, 60 Amp, 7.1 kW
Eaton HCU2300D5IP31 - HCU2 active harmonic correction unit, NEMA 1, 60 Amp, 7.1 kW
$90302.50 $114833.89
Eaton HCU2300D5IP31 - Active Harmonic Correction unit, 300A, 7.1 kW watt loss, 380 - 480 rating, 50/60 Hz, Three-phase, Floor-mount, NEMA 1 enclosure
Eaton HCU2120D5N12 - HCU2 active harmonic correction unit, 480 VAC, NEMA 12, 120 Amp, 2.8 kW
Eaton HCU2120D5N12 - HCU2 active harmonic correction unit, 480 VAC, NEMA 12, 120 Amp, 2.8 kW
$70038.30 $76377.55
Eaton HCU2120D5N12 - active harmonic correction unit, 120A, 2.8 kW watt loss, 380-480V rating, 50/60 Hz, Three-phase, Floor-mount, NEMA 12 enclosure