Rockwell Automation 1769-PB4 Compact I/O Expansion Power Supplies - Manuel (Page 28)

28 Compact I/O Expansion Power Supplies
Publication 1769-IN028B-EN-P - October 2008
Power Dissipation
The following graphs indicate the real electrical power dissipation of the power supply in
function of the electrical load.
1769-PA2 Real Power Dissipation
1769-PB2 Real Power Dissipation
Bus +5V, +24V, and User +24V Load
(Watts)
Real Power Dissipated
(W
atts)
40 30 20 10 0
10
9
8
7
6
5
4
3
2
1
0
60 °C
55 °C
44730
Re
al Power Diss
ipated
(W
atts)
Bus + 5V and 24V Load
(Watts)
60 °C
40 30 20 10 0
10
9
8
7
6
5
4
3
2
1
0
44731