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Automatic transfer switches
Bypass isolation power frame type automatic transfer switches
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Bypass isolation power frame type automatic transfer switches

Eaton’s bypass isolation power frame type automatic transfer switches (ATS) are designed for mission critical systems where redundancy is required allowing maintenance, inspection, and testing to be performed while maintaining constant power to the load. Designed for applications where total system coordination is desired, they offer integral overcurrent protection with an electronic trip unit.

Bypass isolation power frame type automatic transfer switches
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Learn more about ATS fundamentals
Continuous Current Rating
Up to 5000 A
System Voltage Rating
Up to 600 Vac
System Frequency Rating
50/60 Hz

Core features

  • Rated for 200-5000A up to 600V with open delayed, open in-phase or closed transition
  • Automatic, non-automatic, and manual modes of operation under load
  • UL 1008 listed with short-circuit and short time current ratings
  • Available with Eaton’s Arcflash Reduction Maintenance System to reduce the incident energy levels for downstream equipment during periods of maintenance
  • Drawout construction for mission critical systems where preventive maintenance, inspection, and testing must be accomplished while maintaining continuous power to the load
  • Integral service entrance rated option

View design guide (layouts, technical data and application information)

Download guide spec (26 36 23 - 09)

Learn about power system design basics

Automatic transfer switches

Reliable, rugged, versatile and compact assemblies for transferring essential loads and electrical distribution systems from one power source to another.


Watch the following videos to learn more:

  • What is WCR in automatic transfer switches?
  • Choosing a transfer switch
  • Recent change to National Electric code
  • UL1008 Short-circuit WCRs

    Finding the right ATS has never been easier

    Learn about the broadest range of ATSs available in today’s critical power market
    Read more

    Transfer switch 101

    Read our introductory guide to picking the right transfer switch for your environment
    Read white paper

    Built with experience

    With more than 100 years of experience, Eaton can engineer reliable solutions to meet the specific demands of your application—completely designed and customized to your needs

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