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ATC Power Breaker & Case Switch Automatic Transfer Switch

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Overview

Cat® transfer switches are designed for a variety of standby power applications. They provide flexibility, reliability and value in a compact package. The open transition power case switch-based Automatic Transfer Switch (ATS) will provide fully functioning transfer in applications where a momentary loss of power is acceptable on retransfer from emergency to normal power supply. The Cat power case switch-based ATS also permits periodic testing of the emergency source without interrupting power to the loads and are available from 200 to 5000.

Technical Summary

  • Rating Range 200 to 5000A 200 to 5000A
  • Transfer Type Open Transition Open Transition
  • Switch Type Power Breaker Power Breaker

Ratings

  • Control Power Fixed Mount 200-3200A 2, 3, or 4 Pole
    Drawout 200-5000A 2-, 3-, 4-pole
    Fixed Mount 200-3200A 2, 3, or 4 Pole
    Drawout 200-5000A 2-, 3-, 4-pole
  • System Voltage Application 120 - 600 Vac, 50/60 Hz 120 - 600 Vac, 50/60 Hz
  • Time Withstand 85,000 for 30 cycles 85,000 for 30 cycles
  • Withstand 100,000 amps withstand/closing/ interrupting at 600 Vac 100,000 amps withstand/closing/ interrupting at 600 Vac
  • Applicable Testing
    CSA C22.2 No. 178 certified

    IBC 2006, CBC 2007 and OSHPD

    CSA C22.2 No. 178 certified

    IBC 2006, CBC 2007 and OSHPD

Product Features

  • ATC-800 microprocessor-based controller
  • Voltage and frequency sensing
  • Fastest switching times available (<3 cycles)
  • Full 60-cycle short time withstand capability
  • Multiple field programmable time delays
  • Switch position indication
  • Source availability indication
  • Safe manual transfer under load
  • Source 1 and 2 auxiliary contacts
  • Programmable plant exerciser
  • System test pushbutton
  • Load shed from emergency
  • Mimic diagram
  • True RMS three phase voltage sensing on Source 1, Source 2 and Load
  • Frequency sensing on Source 1 and Source 2
  • Mechanical (cable) and electrical interlocking to prevent paralleling of sources
  • Safe manual operation under full load with permanently affixed operating handle
  • Ambient temperature range: -40°C to 40°C (-40°F to 104°F)
  • Operating temperature range: -20°C to 70°C (-4°F to 158°F)
  • Operating humidity: up to 90%
  • Relative humidity (non-condensing)
  • Source paralleling duration is limited to 100 msec or less
  • Source availability indication

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