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Cornell Dubilier / Knowles Q/QRL Quencharc® Arc Suppressor/Snubber Networks

Cornell Dubilier / Knowles (CDE) Q/QRL Quencharc® Arc Suppressor/Snubber Networks consist of a resistor and capacitor that effectively reduce voltage transients. These devices increase the operating life of switching components such as relays, contactors, and semiconductor switches. Cornell Dubilier Q/QRL Quencharc Arc Suppressor/Snubber Networks are suited for high voltage networks up to 1600VDC/660VAC with a variety of capacitance and resistor values to choose from at each voltage.

Features

  • Noise and arc suppression
  • RC Snubber network
  • Relay contact protection
  • Noise reduction on controllers and drives
  • EMI/RFI reduction
  • dV/dt suppression
  • Type QRL - UL/CSA version
  • Coated with flame-retardant epoxy
  • 0.10µF to 1.0µF capacitance range
  • 22Ω to 680Ω resistor value range
  • 200VDC to 1600VDC voltage range
  • -55°C to +85°C operating temperature range at full rated voltage

Applications

  • Relays
  • Switches
  • Thyristors
  • Triacs
  • Contactors

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Published: 2013-07-08 | Updated: 2025-08-10