Rockwell Automation Publication 1606-RM104A-EN-P - July 2020
11
Efficiency and Power
Losses
(1) 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 25% of
the time, 75% of the nominal load for 25% of the time, and 100% of the nominal load for 25%
of the time.
Attributes
Values
Notes
AC 100V
AC 120V
AC 230V
Efficiency
Typ
93.6%
94.2%
95.3%
At 24V, 20 A
Average
efficiency
(1)
Typ
93.4% 93.8% 94.5%
25% at 5 A, 25% at 10 A,
25% at 15 A, 25% at 20 A
Power losses
Typ
5.7 W
4.6 W
3.5 W
At 24V, 0 A
Typ
15.6 W
14.8 W
13.2 W
At 24V, 10 A
Typ
32.8 W
29.6 W
23.7 W
At 24V, 20 A
Figure 12 - Efficiency vs. output current at 24V, typ
Figure 13 - Losses vs. output current at 24V, typ
Figure 14 - Efficiency vs. input voltage at 24V, 20 A, typ
Figure 15 - Losses vs. input voltage at 24V, 20 A, typ
Efficiency
4
6
8
10
12
14
16
18
20 A
88
89
90
91
92
93
Output Current
94
95
96%
(a)
(b)
(c)
(a) 100V AC
(b) 120V AC
(c) 230V AC
Power Losses
0
2
4
6
8
10 12 14
20 A
10
0
20
30
40 W
16 18
Output Current
(a)
(b)
(c)
(a) 100V AC
(b) 120V AC
(c) 230V AC
Efficiency
85
120
155
190
225 260 V AC
90
91
92
93
Input Voltage
94
95
96%
Power Losses
0
20
30
40 W
85
120
155
190
225 260 V AC
Input Voltage
10
