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Puls DIMENSION YR40 DIN rails power supply din rail power supply U YR40.241 Data Sheet

Product codes
YR40.241
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Page of 17
 
 
YR40.241
 
 
Y-Series 
24-28V,
 
40A,
 
D
UAL 
R
EDUNDANCY 
M
ODULE
 
 
Oct. 2010 / Rev. 1.0 DS-YR40.241-EN 
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted 
www.pulspower.com   Phone +49 89 9278 0    Germany 
19.6.  M
OUNTING 
O
RIENTATIONS
 
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 
influences 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. 19-3 
Mounting 
Orientation  A 
(Standard 
orientation) 
YR40
Redundancy
Module
INPUT
OUTPUT
 
Output Current
0
20
30
40
50
70°C
10
20
30
40A
60
A1
Ambient Temperature
 
 
 
 
Fig. 19-4 
Mounting 
Orientation  B 
(Upside down) 
YR40
Redundancy
Module
INPUT
OUTPUT
 
Output Current
0
20
30
40
50
70°C
10
20
30
40A
60
A1
Ambient Temperature
 
 
 
 
Fig. 19-5 
Mounting 
Orientation  C  
(Table-top 
mounting) 
 
Output Current
0
20
30
40
50
70°C
10
30
40A
60
20
A1
A2
Ambient Temperature
 
 
 
 
Fig. 19-6 
Mounting 
Orientation  D  
(Horizontal cw) 
YR40
Redun
dancy
Mod
ule
IN
PU
T
OUTPUT
 
Output Current
0
20
30
40
50
70°C
10
30
40A
60
20
A1
A2
Ambient Temperature
 
 
 
 
Fig. 19-7 
Mounting 
Orientation  E  
(Horizontal ccw) 
YR40
Redundancy
Module
IN
PU
T
OUTPUT
 
Output Current
0
20
30
40
50
70°C
10
30
40A
60
20
A1
A2
Ambient Temperature
 
 
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