ATC Power Breaker & Case Switch Automatic Transfer Switch

ATC Power Breaker & Case Switch Automatic Transfer Switch

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.

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

Standard Equipment

Controls and Wiring
  • All controls relays and industrial grade relays are totally encapsulated to minimize exposure to dust and dirt. Lugs are 90º rated and all control wire is #16 AWG, type XLPE with a 125º temperature rating.
Enclosure
  • Durable powder-coated steel NEMA 1, 3R or 12 enclosures with three door hinges to ensure proper support of the door and door mounted devices. The hinges have removable hinge pins to facilitate door removal for easy wall mounting or service and are supplied with pad-lockable latches.

Additional information

Offering Type

Technical Summary - Rating Range

200 to 5000A

Technical Summary - Transfer Type

Open Transition

Technical Summary - Switch Type

Power Breaker

Ratings - Control Power

Fixed Mount 200-3200A 2, 3, or 4 Pole<br>Drawout 200-5000A 2-, 3-, 4-pole

Ratings - System Voltage Application

120 – 600 Vac, 50/60 Hz

Ratings - Time Withstand

85,000 for 30 cycles

Ratings - Withstand

100,000 amps withstand/closing/ interrupting at 600 Vac

Ratings - Applicable Testing

<br>CSA C22.2 No. 178 certified</br><br>IBC 2006, CBC 2007 and OSHPD</br>

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