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1.14 Load curve – resistive load
Altitude above sea
Temperatur-Derating-Factor
level
2000 m
1
2500 m
0.953
3000 m
0.906
3500 m
0.859
4000 m
0.813
4500 m
0.766
▶ 2.If derating is required, shift all the points in the derating curve by the
temperature derating factor.
Calculation example for shifting the derating curve
￫
Carry out the calculation and shift the derating curve as required
for your application
￫ Section 1.13, "Derating"
72
70
60
50
40
30
20
10
3
24
27
0
0
10
20
30
Figure 6:
Example: Shifted derating curve (blue) at altitude of 3000 m above sea level
1000
500
200
100
50
20
10
0,1
0,2
0,5
1
Figure 7:
Load curve of the relay – resistive load
ESR5-NO-31-24VDC 11/23 MN049018EN Eaton.com
1 Description ESR5-NO-31-24VDC
Example
27 °C x 0.906
55 °C x 0.906
49
40
50
55
60
T
[°C]
A
2
5
10
I [A]
DC
≈
24 °C
≈
49 °C
14
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