Efficiency and power losses – Rockwell Automation 1606-XLS240F, -XLS240F-D Power Supply Reference Manual User Manual
Page 10

All parameters are specified at 48V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
10
Rockwell Automation Publication 1606-RM045A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
9. Efficiency and Power Losses
AC 100V
AC 120V
AC 230V
Efficiency
typ.
90.4%
91.2%
92.0%
at 48V, 5A
Average efficiency *)
typ.
89.6%
90.0%
90.3%
25% at 1.25A, 25% at 2.5A,
25% at 3.75A, 25% at 5A
Power losses
typ.
5.6W
5.7W
5.9W
at 48V, 0A
typ.
25.5W
23.2W
20.9W
at
48V,
5A
*) The average efficiency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load for 25%
of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with 100%
of the nominal load for the rest of the time.
Fig. 9-1
Efficiency vs. output current at 48V,
typ.
Fig. 9-2 Losses vs. output current at 48V, typ.
Efficiency
1
86
87
88
89
90
91
92
85
93%
120Vac
100Vac
230Vac
5A
2
3
4
Output Current
1.5
2.5
3.5
4.5
Power Losses
0
1
2
3
4
5A
3
6
12
15
18
21
27W
120Vac
100Vac
230Vac
Output Current
9
24
Fig. 9-3
Efficiency vs. input voltage at 48V,
5A, typ.
Fig. 9-4 Losses vs. input voltage at 48V, 5A,
typ.
Efficiency
85
120
155
190
225 260Vac
88
89
90
91
Input Voltage
92
93
94%
Power Losses
8
12
16
20
24
Input Voltage
28
32W
85
120
155
190
225 260Vac