Reference Manual

All parameters are specified at 24V, 80A output current, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM011A-EN-P — February 2014 17
Bulletin 1606 Switched Mode Power Supplies
17.6. Mounting Orientations
Mounting orientations other than input terminals on the bottom and output on the top require a reduction in
continuous output power or a limitation in the maximum allowed ambient temperature. The amount of reduction
inuences the lifetime expectancy of the power supply. Therefore, two different derating curves for continuous
operation can be found below:
Curve A1 Recommended output current.
Curve A2 Max allowed output current (results in approximately half the lifetime expectancy of A1).
Fig. 17-3
Mounting
Orientation A
(Standard
orientation)
Redundancy
Module
OUTPUT
INPUTS
Output Current
0
20 30 40 50
70°C
20
40
60
80A
60
A
1
Ambient Temperature
Fig. 17-4
Mounting
Orientation B
(Upside down)
Redundancy
Module
OUTPUT
INPUTS
Output Current
0
20 30 40 50
70°C
20
40
60
80A
60
A
1
Ambient Temperature
Fig. 17-5
Mounting
Orientation C
(Table-top
mounting)
Output Current
0
20 30 40 50
70°C
20
60
80A
60
40
A
1
A
2
Ambient Temperature
Fig. 17-6
Mounting
Orientation D
(Horizontal cw)
Redundancy
Module
OUTPUT
INPUTS
Output Current
0
20 30 40 50
70°C
20
60
80A
60
40
A
1
A
2
Ambient Temperature
Fig. 17-7
Mounting
Orientation E
(Horizontal ccw)
Redundancy
Module
OUTPUT
INPUTS
Output Current
0
20 30 40 50
70°C
20
60
80A
60
40
A
1
A
2
Ambient Temperature