menu icon
Knowles CDE Logo

WF-Series Air Cooled Capacitors

CDE’s low loss dielectric system designs, combined with an understanding of managing heat for critical applications, bring to market the WF-Series capacitor products. This air-cooled high voltage product accommodates both high voltage DC insulation, and high voltage AC RMS sine wave circuits. In power factor correction applications where the AC harmonic component exceeds the conventional rating, CDE’s WF-Series capacitors are made to handle excessive RMS current harmonics provides resolve.

CDE’s WF-Series air-cooled capacitors provide solutions in a few specific applications including:

  • Harmonic AC filtering
  • High voltage DC filtering
  • High voltage energy storage

Utilizing aluminum, stainless steel, and painted steel metal welded cans, the following features and options are also available upon request:

  • Pressure switches
  • Internal discharge resistors
  • Live or dead case construction
  • Single to multiple fine-tuning values per capacitor
  • Choice of bracket-style and location
  • Choice of terminal connections


WF-Series capacitors have these features and the following technical specifications:

  • Air-cooled
  • High voltage KVBil bushings
  • High harmonic RMS current capable


CD Snow Hill, LLC
204 Carolina Drive
Snow Hill, NC 28580

Call: (252) 747-5943

Quick Reference

KVAR: 10 – 500

Voltage: up to 8500 VAC, 100,000 KVDC

RMS Current: up to 400 amps

Frequency: DC to 100 Hz