New | 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.

Technical Summary
Rating Range200 to 5000A
Transfer TypeOpen Transition
Switch TypePower Breaker
Control PowerFixed Mount 200-3200A 2, 3, or 4 Pole
Drawout 200-5000A 2-, 3-, 4-pole
System Voltage Application120 - 600 Vac, 50/60 Hz
Time Withstand85,000 for 30 cycles
Withstand100,000 amps withstand/closing/ interrupting at 600 Vac
Applicable Testing
CSA C22.2 No. 178 certified

IBC 2006, CBC 2007 and OSHPD

  • 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

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.
  • 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.



Other Models in this Category

Select Integrated System Type

Hawthorne Power Systems Logo

Why Cat is Better. Machine Comparison

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

San Diego - Power
Steve Jamison
Power Systems Sales Manager
858.376.6821 office
858.688.0083 mobile

Phillip J. Smith (PJ)
Service Manager - CSA Group/Truck Shop
858.376.6874 office
858.688.0134 mobile

Dan Hixon
Field Service Manager
858.376.6822 office
858.663.4652 mobile

Paul Karpf
Rental Department Manager
858.376.6888 office
858.688.0039 mobile

Hawaii – Power
Cliff Yuen
Power Systems Sales Manager
808.676.0322 office
808.349.7767 mobile

Travis Tilton
General Service Manager
808.676.0314 office
808.864.1903 mobile

Bobby Fields
Rental Developer
808.676.0267 office
808.368.5445 mobile

Guam – Power
Myver Hecita
Power Systems Rental &
Sales Representative
671.649.4241 office
671.898.2740 mobile

Jimmy Cruz
Engine Service Manager
671.649.4216 office
671.488.2821 mobile