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CFX passive filter variable frequency drives

Demand more clean power.

Designed to meet the IEEE 519-1992 requirements for harmonic distortion, Eaton's CFX series of variable frequency drives uses tuned passive filters to significantly reduce line harmonics at the drive input terminals. It also prevents transformer overheating and overloading of breakers and feeders, enabling the application of generators and other high-impedance systems.

CFX 9000 variable frequency drive

Core features of the CFX passive filter VFD

  • This cost-effective solution provides moderate reduction in voltage and current harmonics.
  • The drive provides increased input protection for the adjustable frequency drive and its semiconductors from line transients.
  • A wide range of communication protocols includes DeviceNet, PROFIBUS, Modbus RTU and Modbus TCP.

Got harmonics? Learn what they are and how to manage them.

Harmonic mitigation techniques can help protect equipment from potential damage, reduce power generation to overcome losses, and eliminate utility fines. Learn more about harmonics.

Watch the video to learn more.

Visit our microsite on harmonics.

Get the harmonics calculator

Eaton’s harmonics calculator will help you determine how much you are introducing into the grid. Use this intel to decide which mitigation technique you should employ.

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Use our LOCATE A DISTRIBUTOR tool to find one near you.
How to buy from Eaton
Locate a distributor

Contact your Local Distributor for pricing, availability, ordering, expediting, and repairs.

Questions before you buy

Contact Eaton's Drives Pre-Sale Team for application support and quotes

Voice: 877-ETN-CARE (386-2273) option 2, option 7, option 1 

(8:00 a.m.–5:00 p.m. Central Time U.S. [UTC –6])


How to buy

Contact EatonCare Customer Support Center for order placement, product price information, returns other than warranty returns, and information on local distributors or sales offices.

Voice: 877-ETN-CARE (386-2273) 

(8:00 a.m.–5:00 p.m. Central Time U.S. [UTC –6]                  

Voice for emergencies after hours: 800-543-7038 (6:00 p.m. – 8:00 a.m. Central Time U.S. [UTC –6])

Technical support

Contact Eaton's Drives Technical Resource Center for VFD startup, communication support and troublshooting

Voice: 877-ETN-CARE (386-2273) OPTION 2, OPTION 7, then select one of the following:
OPTION 1: pre-sale
OPTION 2: networking
OPTION 3: startup
OPTION 4: troubleshooting

(8:00 a.m.–5:00 p.m. Central Time U.S. [UTC –6]

Voice for emergencies after hours: 800-543-7038 (6:00 p.m. – 8:00 a.m. Central Time U.S. [UTC –6])


VFD Training

Learn more about Eaton's variable frequency drive training opportunities.

Warranty request

Contact Aftermarket Drives Support for warranty questions and/or concerns