Cell Bypass Switches

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Eaton's cell bypass switches can be used to permanently open or close single or multiple electrical circuits in response to fault conditions such as failed battery or solar-panel cells. These space-rated electrical switches have a heritage-proven track record of efficiency and reliability:

  • Lower voltage drops than diode-bypass systems; < 20mV @ 100A and 40mV @ 200A.
  • When compared to relays, Eaton's cell-bypass switches provide faster response times, reduced weight, and increased reliability especially in high shock and vibration environments.
  • Satellite flight heritage includes G&H TechnologyTM solutions.

For more information,call 805-484-0543 or e-mail cicustomer.service@eaton.com

Extensive range of heritage-proven capabilities

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Cell-bypass switch flight heritage includes multiple-satellite programs. The technologies and design platforms that were used in these critical applications can be leveraged to accelerate custom solution development for a broad range of requirements:

  • Single-and-multiple pole/throw combinations with normally open or closed contacts.
  • Make before break or break before make switching and simultaneous or sequenced multi-pole operation.
  • Customer defined electrical performance including high-current ratings.
  • Extreme shock, vibration, corrosive environments, and operating temperatures including cryogenic.

Additional Cell Bypass Switch Information

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Additional cell bypass switch selection and design-in information is provided in Eaton's Non-Explosive Actuators Design Guide and the Space and Launch Capabilities Brochure.

Non-Explosive Actuators Design Guide contents include:

  • Theories of operation for cell-bypass switches, actuators, and highly-integrated solutions such as interconnect releases and structural-separation systems.
  • Non-explosive and pyrotechnic actuator technology comparisons.

Space and Launch Capabilities Brochure contents include:

  • Cell-bypass switch and release-mechanisms technologies, design platforms and custom-solution capabilities
  • Space-rated connector selection including NATC, cryogenic to 5000 degrees F. operating ranges and low-imparted-shock solutions.
  • Theories of operation for electrically and mechanically initiated umbilicals and in-flight disconnects.

Use the link below to register for PDF or printed copies; due to export-controls restrictions, these brochures are not downloadable from this web site.