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Ac Motor Run Capacitors

Viz motor run capacitors are used in conjunction with single-phase asynchronous motors on single-phase mains supplies. The capacitor is permanently connected to the auxiliary winding, allowing the motor to start and helping to keep the motor running constantly and smoothly with highest efficiency. This results in increased torque during work, improved power factor and low noise. Such Motor run capacitors are designed for 50 or 60 Hz systems. For higher frequencies – as well as in applications where higher frequencies are present – consult VIZ to assure correct selection of the capacitor.


  • Asynchronous motors
  • Refrigerators, freezers
  • Dishwashers
  • Washing machines, tumble dryers
  • Air conditioning
  • Compressors, pumps and submersible pumps
  • Heat pumps
  • Garage door openers
  • Tube motors, awning drives


  • Voltage: 250 … 630 V
  • Capacitance: 1 … 120 mF
  • Ambient temperature: up to +85 °C
  • Very low losses
  • Innovative film technology
  • High insulation resistance
  • Low dissipation factor
  • Maintenance-free
  • RoHS compliant
  • IEC 60252-1 compliant
  • IS 2993 Certified
  • CE Certified
  • Customized versions upon request


  • Compact and economical design
  • Various terminal and mounting options
  • Self-extinguishing plastic material
  • Self-healing properties
  • S2/S3(P2) safety to IEC 60252-1 & IS 2993 versions
  • Fault- current-proof versions
  • up to 10000 A according UL 810

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