New | ATC Contactor Based Bypass Isolation 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. A Bypass Isolation Automatic Transfer Switch (ATS) provides fully functioning transfer in applications where emergency power to critical loads must be maintained at all times with no interruption. This type of design allows for inspection, maintenance or replacement of the power switching mechanisms with no interruption in electrical service. Contactor -based Bypass Isolation ATS are available from 100A to 1200A.

Technical Summary
Rating Range100 to 1200A
Transfer TypeBypass Isolation
Switch TypeContactor Based
Ratings
Control Power100-1200A 2-, 3-, 4-pole
System Voltage Application120 - 600 Vac, 50/60 Hz
WithstandUp to 65 kAIC withstand
Applicable TestingCSA C22.2 No. 178 certified
IBC 2006, CBC 2007 and OSHPD

  • atc-300+ Or Atc-800 Microprocessor-based Controller
  • true Rms Voltage And Frequency Sensing
  • maintains Fully Automatic Capability While In Bypass Mode (optional)
  • single Motion Rack-out With The Door Closed
  • multiple Field Programmable Time Delays
  • switch Position Indication
  • source Availability Indication
  • source 1 And 2 Auxiliary Contacts
  • programmable Plant Exerciser
  • system Test Pushbutton
  • load Shed From Emergency
  • mimic Diagram
  • ability To Test Power Switching Isolated Components

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.

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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.
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Helix Electric
"

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