Electric Power

  • Specs Summary
  • Rating Range
    30-1000A
  • Transfer Type
    Open transition
  • Switch Type
    Molded Case
  • Input control voltage

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 Range 30-1000A
  • Transfer Type Open transition
  • Switch Type Molded Case

ATC Controller Specifications

Ratings

  • Control Power 30-1000A 2, 3, or 4 Pole, 100% Rated
  • System Voltage Application 120 - 600 Vac, 50/60 Hz
  • Withstand 100,000 amps withstand/closing/ interrupting at480 Vac
  • Applicable Testing CSA C22.2 No. 178 certified
    IBC 2006, CBC 2007 and OSHPD

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