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WAC-Series DC Voltage Capacitors

CDE’s WAC-Series DC voltage capacitors offer superior performance in a high capacitance welded case package. By utilizing water cooling as the heat management system, this product is ideally suited for the most demanding applications requiring high RMS ripple current ratings, warm cabinet environments, and large capacitance values.


CDE’s WAC-Series DC water-cooled capacitors provide solutions in a few critical applications including:

  • DC filtering
  • DC blocking
  • Over 100 electrical configurations are currently available in a welded package, with the following features and options 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

    Unique features of the WAC-Series capacitor include:

    • Terminal Options – By designing capacitors with a variety of terminal layouts, WAC-Series capacitors can achieve maximum RMS ripple currents and keep inductance low.
    • Large welded metal package – Utilizing well established and proven high K oil filling process, these welded aluminum cans house large capacitance values in excess of 250 lbs per unit.
    • Welded package – By taking advantage of an already provided welded metal can, CDE can provide additional brackets for accessory components required near the bulk capacitance value and avoid additional structures in assembly.


      WAC-Series Capacitors Product Information and Specifications

      General Specifications

      Capacitance Tolerance+/- 10% typical, +/- 5% available
      Power Losses0.5 – 2.5 watts / inch2
      VoltagesDC continuous, +10% typical surge
      DC repetitive peak
      Test Voltage 2 x rated DC for 60 seconds
      Ripple CurrentsTypically up to 2400 amps RMS
      Temperature Ratings+55 °C max ambient temperature
      Operating Temperature-40 °C to +85 °C
      Water Temperature45 °C maximum output
      Encapsulationlow loss oil impregnant
      uFVDCCurrent RMSFrequency (Hz)CaseSectionsWidth (in)Length (in)Height (in)Weight (kg)
      25070070025000dead25.7515.507.0021
      250700350100000dead25.7515.507.0021
      30070040010000dead23.3813.506.7510
      60070075010000dead45.2513.5018.0036
      85070020003000dead87.0013.5019.1052
      78090012003000dead44.8813.5016.5031
      162090011403000dead44.8813.5017.7534
      3000900150010000dead84.6313.5021.0039
      330090026003000dead84.5016.5026.5056
      500090025003000dead105.0022.0022.0069
      500090025003000dead15.0022.0022.0069
      680090020003000dead25.7522.0018.0065
      750090023001500dead85.0022.0020.0063
      1000090018001000dead85.3822.0022.0075
      2000090025001000dead26.3822.0031.00125
      500100080010000live44.8813.5011.0021
      100010001100300dead64.2513.5018.5031
      1500100012003000dead85.0022.0010.0032
      15001000150025000dead64.2513.5017.0028
      28001000150025000dead64.8813.5017.0032
      3000100014002400dead105.0022.0015.0047
      33001000250010000dead24.6322.0023.0067
      5000100025001000dead25.7522.0027.0098
      750010001000300dead85.3822.0016.2555
      8500100025001000dead105.2522.0023.2577
      1500010002800100dead87.0022.0025.00111
      7501200110010000dead85.0022.0010.0032
      150012009003000dead64.3813.5014.5025
      3300120020003000dead84.6316.5026.5058
      50001200125010000dead86.3822.0014.0056
      10000120028003000dead87.0022.0025.00110
      10000120034003000dead107.0026.0025.00130
      18400120025001000dead27.7522.0029.00140
      450016008003000dead66.2513.5023.0056
      10000160022003000dead26.2522.0030.00118
      3000200090010000dead65.7513.5028.0061
      50002000250010000dead105.7522.0028.0099
      300024007003000dead67.7513.5028.0084
      5000240011503000dead107.7522.0028.00135
      180036004503000dead67.7513.5028.0084
      300036007503000dead107.7522.0028.00135
      100050003503000dead67.7513.5028.0084
      160050005003000dead107.7522.0028.00135

        CONTACT US

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

        Call: (252) 747-5943

        Technical Information

        Application: Integrated Water-Cooled Capacitors Provide High Current and Small Footprint

        Film Capacitor Thermal Strategies Increase Power Density

        Quick Reference

        Capacitance: up to 50,000 uF

        Voltage (DC): up to 10,000 VDC

        Current (RMS): up to 3500 Amps

        Current (Peak): up to 50,000 amp peak

        Frequency: up to 500,000 Hz ripple