Temperature Derating - Allen-Bradley 1769-PA2 Installation Instructions Manual

Temperature Derating

The following graphs indicate how much current can be drawn from the power supply at the
indicated case temperature without damaging it.
1769-PA2 Output Derating
2.0
1.5
1.0
0.5
0.0
0.0 0.1
2.0
1.5
1.0
0.5
0.0
0.0 0.1
Rockwell Automation Publication 1769-IN028C-EN-P - August 2016
With User +24V Current Draw at 0 Amps
60 °C
0.2 0.3 0.4 0.5
+24V Bus Load (Amps)
With User +24V Current Draw at 0.2 Amps
60 °C
0.2 0.3 0.4 0.5
+24V Bus Load (Amps)
Compact I/O Expansion Power Supplies
0.875
55 °C
0.6 0.7 0.8 0.9
0.675 0.85
55 °C
0.6 0.7 0.8 0.9
1.4
1.0
1.25
0.45
1.0
25