New | ATC Molded Case Circuit Breaker & Molded 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 breaker-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 Open Transition MCCB & MCS types of ATS also permits periodic testing of the emergency source without interrupting power to the loads and are available from 30 to 1000 amperes.

Technical Summary
Rating Range30-1000A
Transfer TypeOpen transition
Switch TypeMolded Case
Ratings
Control Power30-1000A 2, 3, or 4 Pole, 100% Rated
System Voltage Application120 - 600 Vac, 50/60 Hz
Withstand100,000 amps withstand/closing/ interrupting at480 Vac
Applicable TestingCSA C22.2 No. 178 certified
IBC 2006, CBC 2007 and OSHPD

  • atc-100, Atc-300+ Or Atc-800 Microprocessor-based Controller
  • mechanical (cable) And Electrical Interlocking To Prevent Paralleling Of Sources
  • voltage And Frequency Sensing
  • multiple Field Programmable Time Delays
  • switch Position Indication
  • source Availability Indication
  • safe Manual Transfer Under Load
  • source 1 And Source 2 Auxiliary Contacts
  • programmable Plant Exerciser
  • system Test Pushbutton
  • load Shed From Emergency (atc-800 Only)
  • mimic Diagram
  • mechanical (cable) And Electrical Interlocking To Prevent Paralleling Of Sources
  • safe Manual Operation Under Full Load With Permanently Affixed Operating Handle
  • ambient Temperature Range: -40c To 40c (-40f To 104f)
  • operating Temperature Range: -20c To 70c (-4f To 158f)
  • operating Humidity: Up To 90%
  • relative Humidity (non-condensing)
  • frequency Sensing On Source 1 And 2
  • true Rms Three Phase Voltage Sensing On Source 1, Source 2 And Load
  • 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, NEMA 3R and NEMA 12 are available with ATC-100 and ATC-300+ controllers. NEMA 4 is only available with the ATC-800 controller. The enclosures are Seismic Qualified (BOCA, CBC, IBC, UBC). The hinges have removable hing

    Optional Equipment

    Available Options
    • Suitable for service entrance
    • Integral overcurrent protection
    • 2- or 4-position test switch
    • Multi-meter options available
    • Selectable automatic or non-automatic operation
    • Space heaters
    • Load sequencing contacts
    • Surge suppression
    • Remote communications
    • Controller availability: ATC-100, ATC-300+,and ATC-800
    • Field selectable, multi ratio, control voltage transformer 50/60 Hz
    • Communications for the ATC-300+ Controller via RS-232 or Modbus through an integrated RS-485 port
    Optional Delayed Transition includes:
    • Time delay neutral
    • Pre-transfer signal with 1 N.O. and 1 N.C. contacts

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    "
    With only a few days notice, we were able to get the emergency system working properly. Hawthorne Cat provided great leadership and excellent field support.
    Mark Cripe
    Helix Electric
    "

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