Rockwell Automation Publication 1606-RM100A-EN-P - July 2020
11
Power Supply - 24V, 5 A, 120 W, Single-phase Input Reference Manual
Efficiency and Power
Losses
Functional Diagram
Attribute
AC 100V
AC 120V
AC 230V
Notes
Efficiency
Typ
92.9%
93.6%
94.3%
At 24V, 5 A
Typ
92.7%
93.5%
94.5%
At 24V, 6 A (Power Boost)
Average efficiency
(1)
)
Typ
91.3%
91.7%
92.0%
25% at 1.25 A, 25% at 2.5 A
25% at 3.75 A. 25% at 5 A
Power losses
Typ
1.3 W
1.3 W
1.4 W
At 24V, 0 A
Typ
4.6 W
4.4 W
4.1 W
At 24V, 2.5 A
Typ
9.2 W
8.2 W
7.3 W
At 24V, 5 A
Typ
11.3 W
9.8 W
8.4 W
At 24V, 6 A (Power Boost)
(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 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.
Figure 14 - Efficiency Versus Output Current at 24V, Typ
Figure 15 - Losses Versus Output Current at 24V, Typ
Figure 16 - Efficiency Versus Output Current at 24V, 5 A, Typ
Figure 17 - Losses Versus Output Current at 24V, 5 A, Typ
Efficiency
1
2
3
5
6 A
89
90
91
92
93
94
95%
Output Current
4
(a)
(b)
(c)
(a) 100V AC
(b) 120V AC
(c) 230V AC
88
87
Power Losses
2
0
4
6
8
12W
5
10
1
4
Output Current
(a)
(b)
(c)
(a) 100
V AC
(b) 120
V AC
(c) 230
V AC
Efficiency
120
180
230
264VAC
89
90
91
92
Input Voltage
93
94
95%
100
Power Losses
120
180
230
264VAC
5
6
7
8
Input Voltage
9
10
11W
100
Output
Over-voltage
Protection
PFC
Converter
Output
Voltage
Regulator
Power
Converter
Output
Filter
Output
Voltage
Monitor
Output
Power
Manager
Temperature
Shut-down
Input Fuse
Input Filter
Input Rectifier
Inrush Current Limiter
VOUT
L
N
DC OK
Contact
DC OK
LED
DC-ok
Relay
