ZTS-Business Critical


The Zenith ZTS Series of transfer switches are built for business and industrial critical applications requiring the reliability and enhanced operation found in this power contactor switch. The ZTS Series uses the MX250 microprocessor control system, which includes features specified for use in business and industrial critical applications. It also provides an intuitive user interface, communications capability and self diagnostics. The ZTS Series is available in a full range of ampere, voltage and pole configurations, along with an extensive list of options and features.
The power panel components, which include power switching contacts, drive mechanism and terminal lugs, are mounted on a specially formed panel for optimum performance. Logic devices such as microprocessor control, auxiliary time delays and special accessory equipment are mounted on the door for ease of maintenance and to keep them separated from the power section. They are connected with a numbered wiring harness equipped with a disconnect plug that allows the control panel to be isolated for maintenance.

Configurations

ZTS – Standard (Open) Transition
The Zenith ZTS transfer switch is used in general and mixed load applications.

ZTSD – Delayed Transition
The Zenith ZTSD transfer switch is used to transfer of motor loads, and transformers.

ZTSCT – Closed Transition The Zenith ZTSCT transfer switch is used to transfer critical loads where a “no break” transfer is desired with this switch 100msec parallel capability.


In business and industrial critical applications power cannot be interrupted to perform maintenance of automatic transfer switches. In such circumstances, a bypass-isolation switch is essential and is often required by code.

Zenith ZBTS Series Bypass-Isolation Transfer Switches are the solution when interruption of power during service or testing is not acceptable.

Consisting of two major modules-the Automatic Transfer (ATS) and the Bypass-Isolation Switch-the ZBTS Series incorporates the rugged construction of all our ZTS Series automatic switches with a quick make/quick break bypass switch manual load transfer handle and our control/interlock system, which consists of both mechanical and electrical interlocks.

The bypass uses normal failure sensing and a time delay to start the engine automatically if a failure occurs when the ATS has been removed for service-which can be done without disturbing the load.

Configurations

ZBTS – Standard (Open) Transition Bypass/Isolation
The Zenith ZBTS Bypass/Isolation transfer switch is used in general and mixed load applications.

ZBTSD – Delayed Transition Bypass/Isolation
The Zenith ZBTSD Bypass/Isolation transfer switch is used to transfer of large motor loads, transformers, uninterruptible power supplies (UPS) systems or load shedding to a neutral “center” position.

ZBTSCT – Closed Transition Bypass/Isolation
The Zenith ZBTSCT Bypass/Isolation transfer switch is used to transfer critical loads where a “no break” transfer is desired with this switch 100msec parallel capability.

Features & Benefits

  • Load is not interrupted during bypass & isolation operation
  • High close-in and withstand capacity
  • Automatic transfer switch is located on a draw-out mechanism to facilitate maintenance
  • Emergency power systems can be electrically tested without disturbing the load
  • Power cables do not have to be disconnected to remove automatic transfer switch
  • Bypass to any available source with ATSremoved
  • Engine start circuit maintained during bypass operation; normal power failure causes engine start contact closure even with the ATS removed
  • Diagnostic lights and detailed instructions for simple step-by-step operation
  • Mechanical and electrical interlocks ensure proper sequence of operation
  • Bypass switch contacts are closed only during the bypass-isolation operation
  • Silverplated copper bus interconnection of the transfer and bypass switches on all sizes


The Zenith ZTSMV Series of transfer switches are built for business and industrial critical applications requiring the reliability and enhanced operation in a 5-15kV class design . The ZTSMV Series uses the MX250 microprocessor control system, which includes features specified for use in business and industrial critical medium voltage applications. It also provides an intuitive user interface, communications capability and self diagnostics. The ZTSMV Series is available with an extensive list of options, features and ratings.

Features & Benefits

  • Front and rear accessible
  • Vacuum circuit breaker design
  • Electrically interlocked for secure operation
  • Overcurrent protection on the generator source breaker
  • Compliance with ANSI/EEE spec C37
  • Drawout P.T. trunnion design on utility to facilitate removal of control fuses from rear of cabinet
  • Control module isolated from power section
  • Control module 25 provided for use with generator as an alternate source
  • Control circuit disconnect switch

If request more info or have any questions, please contact us

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