
Section II
General Product Information
006-0007097 02/14/2019
Rev E
19 of 52
UPS-1250DC Guide www.synqor.com
1100W
0
200
400
600
800
1000
1200
1400
60
80
100
120
140
160
180
200
220
240
260
280
Output
Power
(Watts)
Input Voltage (Vrms)
Output Power vs. AC Input Voltage
(without switching over to the DC input or the battery)
Steady state
15s transient
2s transient
132V
Figure 3
Note that the full rated output power of 1250 W can be derived from the AC INPUT having
a voltage within this uncommon range for 15 seconds before the UPS will switch over to
the DC INPUT or the BATTERY PACK. Also note that the UPS can drive it full rated power for
a 2 second interval even if the AC INPUT voltage drops below 90 Vrms.
0
200
400
600
800
1000
1200
1400
25
30
35
40
45
50
55
Output
Power
(Watts)
Air Temperature (°C)
UPS Output Power vs. Air Temperature
for UPS-1250-S-1U and UPS-1250-E-2U
V
AC(IN)
>105 V
RMS
or V
DC(IN)
>22 V or
power drawn from the battery
V
AC(IN)
= 90 V
RMS
and V
DC(IN)
<22 V and
power not drawn from the battery
V
AC(IN)
= 80 V
RMS
and V
DC(IN)
<22 V and
power not drawn from the battery
Figure 4