Reference Manual Instruction Manual

All parameters are specified at 24V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
10 Rockwell Automation Publication 1606-RM044A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
9. Efciency and Power Losses
AC 100V AC 120V AC 230V
Efciency typ. 91.5% 92.6% 93.5% at 24V, 10A
Average efciency *) typ. 91.7% 92.4% 92.4% 25% at 2.5A, 25% at 5A, 25%
at 7.5A. 25% at 10A
Power losses typ. 4.4W 4.9W 6.1W at 24V, 0A
typ. 22.4W 19.1W 16.7W at 24V, 10A
*) The average efciency 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 Efciency vs. output current at 24V,
typ
Fig. 9-2 Losses vs. output current at 24V, typ.
Efciency
23456789
10A
86
87
88
89
90
91
Output Current
92
93
94%
A
.
.
.
1
0
0
V
a
c
B
.
.
.
1
2
0
V
a
c
C
.
.
.
2
3
0
V
a
c
A
B
C
Power Losses
01234567 10A
0
3
12
15
18
Output Current
21
24W
89
A
B
C
6
9
A
.
.
.
1
0
0
V
a
c
B
.
.
.
1
2
0
V
a
c
C
.
.
.
2
3
0
V
a
c
Fig. 9-3 Efciency vs. input voltage at 24V,
10A, typ.
Fig. 9-4 Losses vs. input voltage at 24V, 10A,
typ.
Efciency
85 120
155
190 225 260Vac
88
89
90
91
Input Voltage
92
93
94%
Power Losses
9
12
15
18
21
Input Voltage
24
27W
85 120
155
190 225 260Vac