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ZTS - Standard (Open) Transition
ZTS - Standard (Open) Transition
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.
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    Features and Benefits
  • Contact transfer speed less than 100 milliseconds
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  • High close-in and withstand capability
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  • Double throw, interlocked operation
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  • Electrically operated, mechanically held by a simple, over-center mechanism
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  • Segmented silver tungsten alloy contacts with separate arcing contacts on 600 amps and above
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  • Arc quenching grids, enclosed arc chambers and wide contact air gap for superior source-to-source isolation on all units
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  • Control circuit disconnect plug and drive inhibit switch for safe maintenance
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  • 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
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    Specifications
  • Temperature rise test per UL 1008 conducted after overload and endurance tests in unventilated enclosure-exceeds UL requirements
  • UL 1008 listed at 480 VAC
  • CSA certified at 600 VAC
  • IEC 947-6-1 listed at 480 VAC
  • Seismic certified to IEEE-693-2005 at HIGH level with 2.5 amplification factor
  • Seismic certified to IBC-2006 at Ip=1.5 for z/h less than or equal to 1
  • UL 1008 listed at 480 VAC
  • CSA C22.2 No. 178 certified at 600 VAC
  • IEC 947-6-1 certified at 480 VAC
  • Seismic certified to IEEE-693-2005 at HIGH level with 2.5 amplification factor
  • Seismic certified to IBC-2006 at Ip=1.5 for z/h less than or equal to 1
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    Product Scope
  • Ratings 40 to 4000 amperes
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  • 120 - 600 Volts
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  • 2, 3 or 4 poles
  • Open type, NEMA 1, 3R, 4, 4X and 12
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  • Available to 600 VAC, 50 or 60 Hz
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  • Suitable for emergency and standby applications on all classes of load, 100% tungsten rated through 400 amps
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  • Available in ZTS (utility-generator), ZTSU (utility-utility), ZTSG (generator-generator) and ZTSM (manual) configurations
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