User Manual

All parameters are specified at 12V, 4.5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless noted otherwise.
8 Rockwell Automation Publication 1606-RM015A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
8. Efciency and Power Losses
AC 100V AC 120V AC 230V
Efciency typ. 83.5% 85.3% 87.2% at 12V, 4.5A (full load)
Power losses typ. 0.45W 0.5W 0.85W at 0A
typ. 4.2W 3.9W 4.2W at 12V, 2.25A (half load)
typ. 10.6W 9.3W 7.9W at 12V, 4.5A (full load)
Fig. 8-1 Efciency vs. output current at 12V,
typ.
Fig. 8-2 Losses vs. output current at 12V,
typ.
Efciency
0
80
84
88
78
90%
4.5
A
0.5 2.521.5
82
86
b
c
a
a) 230Vac
b) 120Vac
c) 100Vac
13.534
Output Current
Power Losses
0
4
8
0
12W
4.5A0.5 2.5 3.51
2
6
b
c
a
10
1.5 234
a) 230Vac
b) 120Vac
c) 100Vac
Output Current
Fig. 8-3 Efciency vs. input voltage at 12V,
4.5A, typ.
Fig. 8-4 Losses vs. input voltage at 12V, 4.5A,
typ.
Efciency
85 120
155
190 225 260Vac
Input Voltage
89%
84
86
88
87
85
83
Power Losses
0
2
4
6
8
10
12W
85 120
155
190 225 260Vac
Input Voltage