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ATS MX Contactor

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CTS Series Automatic Transfer Switch


The Cat® CTS Series Automatic Transfer Switch(ATS)is configurable for applications requiring the dependability and ease of operation found in a full featured power contactor type transfer switch.

The CTS Series is equipped with the MX250 controller that is designed for the most demanding transfer or bypass switch applications.

  • Specification Summary

  • Rating Range 40 to 4000A
  • Transfer Type Open transition
  • Switch Type Contactor Based
  • Control Power 40 to 4000 amperes, 2, 3 or 4 Poles
  • Specification Sheet

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Product Details

Technical Summary

Rating Range 40 to 4000A
Transfer Type Open transition
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 UL 1008 listed at 480 VAC <br>CSA C22.2 No. 178 certified at 600 VAC <br> IEC 947-6-1 listed through 480 VAC
  • The Cat CTS Series of Automatic Transfer Switches
    •  The Cat CTS 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 CTS Series is offered in a wide array of configurations en
  • The Cat CTS 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 CTS Series is offered in a wide array of configurations en
    • 40-4000 Amps:
      •  CTS Automatic Transfer Switches
      •  CTSD Delayed Transition Transfer Switches
      •  CTSM Manual Transfer Switches
    • CTS Automatic Transfer Switches
      • CTSD Delayed Transition Transfer Switches
        • CTSM Manual Transfer Switches
          • 100-4000 Amps:
            •  CTSCT Closed Transition Transfer Switches
            •  CBTS Automatic Transfer/Bypass Switches
            •  CBTSD Delayed Transition Bypass Switches
            •  CBTSCT Closed Transition Bypass Switches
          • All CTS products meet or exceed industry requirements to allow specification and installation with confidence.
            •  UL 1008 listed through 480 VAC
            •  CSA C22.2 No. 178 listed through 600 VAC
            •  IEC 947-6-1 listed through 480 VAC
            •  Codes and Standards: NFPA 0,99, 101,110,NEC 517,700,701,702,IEEE 446, 241,NEMA ICS2-447
            •  Controls tested in accordance with:
            •  Equipment (Controls and Power Section)Seismic Test Qualified to:<br>IBC-2003 <br>IEEE-693-2005
            •  Enclosures meet the requirements of:<br>UL 508, UL 50, ICS 6, ANSI C33.76 and NEMA 250
            •  Quality System:<br>ISO 9001 Registered
            •  This ruggedly built family of power contactor switches has been specifically designed for transfer switch duty with dependability, versatility and user friendliness of prime concern.<br>The CTS power panel components, consisting of power switching co
          • CTS Series Method of Operation
            •  When the normal source fails or the voltage drops to a predetermined point (usually 80% of nominal), if required, a circuit is closed to start the engine generator set. When the emergency source reaches 90% of rated voltage and 95% of rated frequency, the
          • When the normal source fails or the voltage drops to a predetermined point (usually 80% of nominal), if required, a circuit is closed to start the engine generator set. When the emergency source reaches 90% of rated voltage and 95% of rated frequency, the
            • Drive Mechanism
              •  All CTS switches employ the simple “over-center” principle to achieve a mechanically locked position in either normal or emergency and a high speed drive assures contact transfer in 100 ms or less. High contact pressure and positive mechanical
            • All CTS switches employ the simple dquo;over-center” principle to achieve a mechanically locked position in either normal or emergency and a high speed drive assures contact transfer in 100 ms or less. High contact pressure and positive mechanical
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