14
CURRENT TECHNOLOGY
®
PX3
TM
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Field Testing:
Your PX3 has been carefully tested before leaving the factory .
However, the performance of this unit as a surge suppression device can be
confirmed in the field prior to startup using a portable DTS-2 Tester .
The optional DTS-2 Tester may have been purchased along with your PX3 or
Field Startup Testing Service
may have been specified during the purchase of
the PX3 .
™
Check with the owner or owner’s representative to see if this test is
required at your site .
If you have questions about Field Startup Testing or would like to
arrange for this service, call Current Technology
®
Technical Support at
800.238.5000.
Confirm Pre-Installation Checklist:
Confirm that the “Pre-Installation
Checklist” found in the beginning of this manual was completed correctly
before proceeding .
Confirm Line Voltage:
Measure the line to line voltages feeding the
panelboard or disconnect and be sure they are within ±10% of the rated
line voltage of the PX3 . Use the following table to determine the range of
acceptable voltages for each model of the PX3 . The power system operating
frequency should be between 47–63 Hz .
Table 3: Acceptable Voltage Ranges for All PX3 Models
PX3
MODEL NO.
NOMINAL
L-L VOLTAGE
-10% TO +10%
L-L VOLTAGE
PX3-xxx-240-2G-xxx-xx-xx
240
216 to 264
PX3-xxx-208-3Y-xxx-xx-xx
208
188 to 228
PX3-xxx-380-3Y-xxx-xx-xx
380
342 to 419
PX3-xxx-480-3Y-xxx-xx-xx
480
432 to 528
PX3-xxx-600-3Y-xxx-xx-xx
600*
540 to 660
PX3-xxx-240-3H-xxx-xx-xx
240
216 to 264
PX3-xxx-240-3D-xxx-xx-xx
240
216 to 264
PX3-xxx-480-3D-xxx-xx-xx
480
432 to 528
PX3-xxx-600-3D-xxx-xx-xx
600*
540 to 660
*Not available with Integral Disconnect
Note:
first “xxx” specifies rating of 050, 080, 100, 125, 150, 200kA
Before Applying Power
Checklist
✓
W A R N I N G !
Do not apply power if the measured voltage is not within the range
specified for the PX3 model being installed.
➤
Apply power to the PX3 by closing the circuit breaker or switch (if any)
feeding the PX3 or closing the PX3 integral disconnect .
W A R N I N G !
