The GE Zenith ZTG Series Automatic Transfer Switches are built for
standard applications requiring the dependability and ease of operation found in a power
contactor switch. Made in USA 
* Ratings 40 to 3000 amps
* 2, 3, or 4 poles
* UL 1008 listed at 480VAC
* CSA certified at 600VAC (200-225 amp - 480VAC)
* IEC listed at 480VAC
* Double throw, mechanically interlocked contactor mechanism
* Electrically operated, mechanically held
* Designed for emergency and standby applications
* Also available in delayed transition (ZTGD) model
ZTG switches are equipped with GE Zenith's next-generation
MX150
microprocessor panel which controls the operation and displays the status of the transfer
switch's position, timers and available sources. As an embedded digital controller,
the MX150 offers high reliability and ease of unattended operation across a range of
applications. The MX150 now replaces the MX100 and includes:
* Timer and voltage/frequency settings adjustable without
disconnection
from the power section
* Built-in diagnostics with displays for immediate
troubleshooting
* LED indicators for ease of viewing and long life
* Nonvolatile memory--clock battery backup not required for
standard
switch operation
* Processor and digital circuitry isolated from line voltage
* Inputs opto-isolated for high electrical immunity to
transients and noise
* Communications header for remote annunciator/network interface
panel
* 7 day timed exerciser load/no-load selectable,
pushbutton/timer operation
(CDT memory backup battery included)
Optional features include NEMA 3R for outdoor use, auxiliary
contacts, enhanced C/D exerciser timer, extra power pole to switch neutral, single phase,
etc.
Application Flexibility
The ZTG Automatic Transfer Switch combines reliability and flexibility in a small
package for transferring loads between the utility and generator sets. The ZTG
Transfer Switches work together with any remote-start generators using two-wire
control. The control monitors utility and emergency standby power generator set
power. When utility power fails or is unsatisfactory, the control starts the
generator set and transfers the load to the generator set. The transfer switch
immediately senses when utility power is restored. It automatically transfers back
to utility power, shutting down the generator and instantly resetting itself for the next
power interruption. No action is required by site staff.
Design Features
Plenty of enhanced designed features:
* Close differential 3 phase undervoltage
sensing of the normal source (user adjustable)
* Underfrequency sensing of normal source (user adjustable)
* Voltage and frequency sensing of the emergency source (user
adjustable)
* Test switch (fast test/load/no load) to simulate normal source
failure
* Test is automatically bypassed should the emergency source
fail
Enclosures
The transfer panel and control are mounted in a single door NEMA 1 (indoor) or
optional 3R (outdoor) enclosure.
Specs
NOTES:
1) The start time delay prevents nuisance generator starts during momentary utility
power variations; transfer time delay allows generator set to stabilize before load is
applied; retransfer delay prevents needless power interruption if return of utility power
is momentary; stop delay allows gradual generator set cool down; undervoltage sensing of
utility supply provides reliable starting of generator set during brownout conditions.
2) This switch is not service entrance rated. This generally means that you
need a service entrance rated device between this switch and your utility meter.
3) The standard ZTG contactor comes with 3 power poles to switch the 3 phase
conductors. It does NOT switch the neutral, which is acceptable in most areas of the
USA. See article 250.20 of the 2002 NEC. If there are special requirements in
your area that require switching the neutral (as dictated by local codes or electrical
inspectors) order an extra pole using the drop-down menu below.
4) Two single pole double throw auxiliary switches (1 on the utility and 1 on the
emergency contactor) are available as an option. These are useful for remote
indication of the switch position or to turn off loads that should not run when on
generator power. To order use the drop-down menu below.
Customers who purchased this product also ordered:
(click underlined words to see product pages)
Battery charger BATTEND022
Extended warranty option recommended for applications in severe
environments or where frequent switching operations of more than once per week
are expected.
Select options using drop-down menus. Price adders for extra
options will be automatically included in price shown by shopping cart.
Item Number: ZTGK15
Your Price: $1,469.00
Shipping Weight: 69 lbs.
This item normally ships in 4-5 weeks after order acceptance. Click here
for the latest lead time for this product.
