Rockwell Automation 1606-XLDC92D Power Supply Reference Manual - Manual (Page 8)

All parameters are specified at 24V, 3.8A, 24Vdc input voltage, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
8 Rockwell Automation Publication 1606-RM023A-EN-P — January 2014
Bulletin 1606 Switched Mode Power Supplies
7. Efficiency and Power Losses
Input 24Vdc
Efficiency typ. 90.5% at 24V, 3.8A
Power losses typ. 0.7W at no output load
typ. 5.5W at 24V, 1.9A
typ. 9.7W at 24V, 3.8A
Fig. 7-1 Efficiency vs. output current at 24V,
typ. Fig. 7-2 Losses vs. output current at 24V,
typ.
Efficiency
1
86
88
90
85
91%
4A 2 3 3.5 2.5
87
89
1.5 0.5
Output Current
Power Losses
0 1 2 4A
0
2
6
10
12W
4
3
8
Output Current
Fig. 7-3 Efficiency vs. input voltage at 24V,
3.8A, typ. Fig. 7-4 Losses vs. input voltage at 24V, 3.8A,
typ.
Efficiency
18 20 22 26 28 32Vdc
91%
88.5
89.5
90.5
90.0
89.0
88.0
24 30
Input Voltage
Power Losses
0
2
4
6
8
10
12W
18 20 24 26 28 32Vdc 30
Input Voltage
22