The Zenith ZTG Series of transfer switches are built for general purpose commercial and industrial applications requiring the dependability and ease of operation found in a power contactor switch. The ZTG series uses the MX150 microprocessor control system, which includes features specified on a general purpose commercial and industrial applications. It also provides an intuitive user interface, communications capability and self diagnostics. The ZTG Series is available in a full range of ampere, voltage and pole configurations, along with many commonly requested options and features.
Configurations
- ZTG – Standard (Open) Transition
The Zenith ZTG transfer switch is used in general and mixed load applications.
- ZTGD – Delayed Transition
The Zenith ZTGD transfer switch is used for the transfer of large motor or inductive loads.
Features and Benefits
- Close differential under-voltage sensing of the normal source
- Voltage and frequency sensing of the emergency source
- Test switch (fast test/load/no load) to simulate normal source failure – automatically bypassed should the emergency source fail
- Double throw, interlocked operation
- Electrically operated, mechanically held by a simple, over-center mechanism
- Segmented silver tungsten alloy contacts with separate arcing contacts on 600 amps and above
- Arc quenching grids, enclosed arc chambers and wide contact air gap for superior source-to-source isolation on all units
- 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
- Offering a Warranty Period of twenty-four (24) months or two years from the date of shipment
Specifications
- UL 1008 listed at 480 VAC
- UL 1008 7th edition standard
- CSA certified at 600 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
- ISO 9001 certified manufacturing plant
- Durable, long-life solenoid operated mechanism
- GE-engineered and manufactured contacts and arc quenching components
- OSHPD seismic qualifications
Product Scope
- Ratings 40 to 3000 amperes
- 120 – 600 Volts
- 50 or 60 Hz
- 2, 3 or 4 poles
- Double throw, mechanically interlocked contactor mechanism
- Suitable for emergency and standby applications
- Open type, NEMA 1, 3R, 4, 4X and 12 enclosures