Section II
General Product Information
006-0007097 02/14/2019
Rev E
20 of 52
UPS-1250DC Guide www.synqor.com
Special Operating Temperature Conditions for the UPS-1250-S-2S “Shallow Rack”
The UPS-1250-S-2S “Shallow Rack” model has a different forced convection cooling system than
the other models in the UPS-1250 family. Depending on the type of input power source, the
UPS-1250-S-2S has two different maximum temperatures ratings. For an AC input source, the
maximum operating temperature is 50 °C. Operating the UPS-1250-S-2S “Shallow Rack” above
50 °C when powered from an AC source or 55 °C when powered from a DC source may result in
a reduced or zero backup battery runtime.
0
200
400
600
800
1000
1200
1400
25
30
35
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50
55
60
Output
Power
(Watts
)
Input Voltage (Vrms)
Output Power vs. Air Temperature
For UPS-1250-S-2S
AC Input > 105 Vrms
AC Input = 90 Vrms
AC Input = 80 Vrms
DC Input > 22V
Figure 5