|
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.
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 to transfer of motor loads, and transformers.
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
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
Ratings 40 to 3000 amperes
120 - 600 Volts
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
|
