Section IV
Multiple UPS Configurations
006-0007129 10/12/2018
Rev B
38 of 60
UPS-1500 3-Phase Guide
www.synqor.com
Three UPS units with AC OUTPUTS Paralleled
The following diagram shows how to connect the output of three UPS units in standard or
expanded redundant parallel configuration. The wiring diagram explains how the AC OUTPUT
cables and the CONFIGURATION cable need to be connected:
L1
N
PEGND
L1
N
PEGND
L1
N
PEGND
REAR PANEL
REAR PANEL
REAR PANEL
L1 N
TO LOAD
PEGND
AC Output
AC Output
AC Output
CONFIGURATION cable SYN-9315 or SYN-9343
When ordering, select the options “F: Floating” for standard parallel, or “R: Redundant” for
redundant parallel. Use CONFIGURATION cable SYN-9315 for standard parallel “F” Type and
SYN-9343 for expanded redundant “R” type parallel units.
If the user is providing the AC OUTPUT cable, the cable size for the blue and red sections
shown above should follow the guide lines in the table below depending on the output voltage
configuration of the UPS units.
UPS AC OUTPUT Voltage
Blue Cable Section Minimum
Wire Size
Red Cable Section Minimum
Wire Size
115 Vac
#14 AWG (2.5 mm
2
)
#10 AWG (6mm
2
)
230 Vac
#16 AWG (1.5 mm
2
)
#12 AWG (4mm
2
)