27
control of fan speed optimizes the thermal settings for your environment to reduce fan
consumption and lower system power consumption.
Power supply units
The PowerEdge T640 supports up to 2 AC or DC power supplies with 1+1 redundancy, auto sensing, and auto-switching capability.
Table 13. Power supply
specifications
Power supply
Class
Heat dissipation
(maximum)
Frequency
Voltage
Current
495 W AC
Platinum
1908 BTU/hr
50/60 Hz
100-240 V AC,
autoranging
6.5 A-3 A
750 W AC
Platinum
2891 BTU/hr
50/60 Hz
100-240 V AC,
autoranging
10 A-5 A
750 W AC
Titanium
2843 BTU/hr
50/60 Hz
200-240 V AC,
autoranging
5 A
750 W Mixed
Mode HDVC
Platinum
2891 BTU/hr
50/60 Hz
100-240 V AC,
autoranging
10 A-5 A
(for China only)
N/A
2891 BTU/hr N/A
240 V DC,
autoranging
4.5 A
1100 W AC
Platinum
4100 BTU/hr
50/60 Hz
100-240 V AC,
autoranging
12 A-6.5 A
1100 W DC
Gold
4416 BTU/hr
-
-(48-60) V DC,
autoranging
32 A
1600 W AC
Platinum
6000 BTU/hr
50/60 Hz
100-240 V AC,
autoranging
10 A
2000 W AC
Platinum
7500 BTU/hr
50/60 Hz
100-240 V AC,
autoranging
11.5 A
2400 W AC
Platinum
9000 BTU/hr
50/60 Hz
100-240 V AC,
autoranging
16 A
NOTE: Heat dissipation is calculated using the PSU wattage rating.
NOTE: This system is also designed to connect to the IT power systems with a phase-to-phase voltage not exceeding
240 V.
NOTE: If a system with 24000 W AC PSU operates at low line 100-120 V AC, then the power rating per PSU is derated to
1400 W.
NOTE: If a system with 2000 W AC PSU operates at low line 100-120 V AC, then the power rating per PSU is derated to
1000 W.
NOTE: If a system with 1600 W AC PSU operates at low line 100-120 V AC, then the power rating per PSU is derated to
800 W.
NOTE: If a system with 1100 W AC PSU operates at low line 100-120 V AC, then the power rating per PSU is derated to
1050 W.
