CTE Series Automatic Transfer Switch

  • Overview
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Design and Construction Features

  • Double throw, interlocked operation
  • Electrically operated, mechanically held by a simple, over-center mechanism
  • Silver alloy contacts with separate arcing contacts on 600 amp and above
  • Arc quenching grids, enclosed arc chambers, and wide contact air gap for superior source to-source isolation on all units
  • Durable solenoid ATS operated mechanisms and robust electronics, tested for severe Electro Magnetic Compatibility and Environmental conditions
  • Control circuit disconnect plug and drive inhibit switch for safe maintenance
  • Components accessible for inspection and maintenance without removal of the switch or the power conductors
  • Mechanical indicator and contact chamber cover designed for inspection, safety and position designation

Performance Features

  • Standard open two position transition plus delayed and closed transition
  • High close-in and withstand capability
  • Temperature rise test per UL 1008 conducted after overload and endurance tests in unventilated enclosure
     - exceeds UL requirements
  • Equipped with the MX350 Control Packag
Technical Summary
Rating Range 40-4000A
Transfer Type Open / Closed / 4 position switch
Switch Type Contactor Based
Electrical Ratings
Control Power 40 to 4000 amperes, 2,3 or 4 poles
Enclosure Capability NEMA 1, 3R, 4, 4X and 12
System Voltage Application Available to 600 VAC, 50 or 60 Hz
Applicable Testing
  • Seismic tested and certified to IBC 2006 & OSHPD
  • CSA C22.2 No. 178 certified at 600 VAC
  • IEC 947-6-1 liste
  • Standard Equipment

    • The CTE Series of Automatic Tranfser Switches
      • Drive Mechanism
      • Bypass Isolation Switches CBTED & CBTECT
      • The Cat CTE Series power contactor type transfer switch makes use of a fully programmable/configurable microprocessor-based controller to allow the utmost in application flexibility. Further, the CTE Series is offered in a wide array of configurations enabling it to meet the needs of even the most highly critical load.
        Available configurations include:
        • The MX350 microcontroller is a modular control and monitoring system designed specifically for low voltage transfer switch applications.
          The MX350 provides the following key benefits:
          Flexible control and communication options to suit any low-voltage transfer switch application
          Small footprint
          Modular design, which reduces the number of spare components for maintenance and testing
        • 40-4000 Amps:

        • CTE Automatic Transfer Switches
        • CTED Delayed Transition Transfer Switches
        • CTEM Manual Transfer Switches
        • 100-4000 Amps:

        • CTECT Closed Transition Transfer Switches
        • CBTE Open Transition Bypass Switches
        • CBTED Delayed Transition Bypass Switches
        • CBTECT Closed Transition Bypass Switches
      • CTECT Series:
      • Neutral Switching
      • CTE Electrical Ratings
      • Safe Manual operation
      • CTED Series:

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