Reference Manual

All parameters are specified at 12V, 1.3A, 230Vac input, 25°C ambient and after a 5 minutes run-in time.unless noted otherwise.
8 Rockwell Automation Publication 1606-RM020A-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. 82.4% 83.0% 82.5% at 12V, 1.3A (full load)
Power losses typ. 0.5W 0.55W 0.75W at 0A
typ. 1.7W 1.6W 1.8W at 12V, 0.65A (half load)
typ. 3.2W 3.1W 3.2W at 12V, 1.3A (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
0.2
77
78
79
80
81
82
83
76
84%
1.4A0.6 0.8 1.2
Output Current
0.4 1.0
a) 100Vac
b) 120Vac
c) 230Vac
b
c
a
Power Losses
00.2 1.4
A
0
0.5
1.5
2.0
4W
2.5
0.4 0.6 0.8
Output Current
1.0 1.2
1.0
3.0
a) 100Vac
b) 120Vac
c) 230Vac
3.5
b
c
a
Fig. 8-3 Efciency vs. input voltage at 12V,
1.3A, typ.
Fig. 8-4 Losses vs. input voltage at 12V, 1.3A,
typ.
Efciency
85 120
155
190 225 260Vac
79
80
81
82
83
84
85%
Input Voltage
Power Losses
2.75
3.25
3.50
3.75
4W
85 120
155
190 225 260Vac
Input Voltage
3.00