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Automatic transfer switches

Power frame type automatic transfer switches

Eaton’s power frame type automatic transfer switches (ATS) offer the highest amperage capacity in the industry. Designed for applications where total system coordination must be accomplished, they offer integral overcurrent protection with an electronic trip unit for a variety of standby power applications feeding critical and non-critical loads.

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 in 2, 3 or 4 pole configurations, 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
  • Open frame design for integration into new or existing distribution lineup
ats-900-en-us.jpg

The Value of a SMART ATS Controller

Intelligent controllers can help you make informed decisions and perform efficient maintenance related to your automatic transfer switch (ATS) activity

Eaton offers controller models that allow for remote management, advanced diagnostics, programmable setpoints, integral metering and innovative features such as ATS Health and Maintenance Watch™ - available with the ATC-900

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

    Transfer switch 101

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

    Ratings

    CONTINUOUS CURRENT Up to 5000 A
    SYSTEM VOLTAGE Up to 600 Vac
    SYSTEM FREQUENCY 50/60 Hz
    SHORT-CIRCUIT WITHSTAND AND CLOSE-ON (TIME BASED) 100 kA (0.05 sec)
    SHORT-CIRCUIT WITHSTAND AND CLOSE-ON (SPECIFIC FUSE CLASS) 200 kA
    SHORT-TIME WITHSTAND AND CLOSE-ON (TIME-BASED) 85 kA (0.5 sec)

    Standards

    THIRD PARTY APPROVAL/RECOGNITION
    UL 1008 and CSA 22.2 No. 178 Listed
    NEMA
    1, 3R
    SEISMIC QUALIFICATION
    IBC, CBC, UBC Zone 4, OSHPD
    EMISSIONS FCC Part 15 (Subpart B); CISPR 11
    ELECTROMAGNETIC COMPATIBILITY (EMC)

    IEC 61000-4-2: electrostatic discharge immunity

    IEC 61000-4-3: radiated immunity

    IEC 61000-4-4: fast transient/burst immunity

    IEC 61000-4-5: surge immunity

    IEC 61000-4-6: conducted immunity

    IEC 61000-4-11: voltage dip/interruption immunity

    Devices

    CIRCUIT PROTECTION Magnum DS Low Voltage Power Circuit Breaker
    SAFETY (SERVICE ENTRANCE RATED TRANSFER SWITCHES) Arcflash Reduction Maintenance System 
    SURGE PROTECTION Surge Protective Devices
    POWER AND ENERGY METERS Power Xpert, IQ Meters

    Enclosure

    ENCLOSURE TYPE Indoor and outdoor
    ACCESS Rear (standard), Front (optional)
    CABLE ENTRY Top/bottom
    MOUNTING Floor
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    Informational videos