Rockwell Automation 1606-XLS960FE Power Supply Reference Manual - Manual (Page 11)

All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless noted otherwise.
Rockwell Automation Publication 1606-RM018A-EN-P — February 2014 11
Bulletin 1606 Switched Mode Power Supplies
12. Efficiency and Power Losses
AC 230V
Efficiency typ. 95.0% at 48V, 20A
Average efficiency *) typ. 94.2% 25% at 5A, 25% at 10A, 25% at 15A. 25% at 20A
Power losses typ. 3.2W with activated shut-down
typ. 12.0W at 48V, 0A (no load)
typ. 30.1W at 48V, 10A (half load)
typ. 50.5W at 48V, 20A (full load)
*) 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 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. 12-1 Efficiency vs. output current at 48V,
typ.
Fig. 12-2 Losses vs. output current at 48V,
typ.
Efficiency
4 6 8 10 12 14 16 18 20A
91
92
93
Output Current
94
95%
Power Losses
0 2 4 6 8 10 12 14 20A
10
0
30
40
50
60W
16 18
20
Output Current
Fig. 12-3 Efficiency vs. input voltage at 48V,
20A, typ.
Fig. 12-4 Losses vs. input voltage at 48V, 20A,
typ.
Efficiency
170 190 210 230 250 270Vac
93
94
95
Input Voltage
96%
Power Losses
30
35
40
45
50
55
60W
170 190 210 230 250 270Vac
Input Voltage