Siemens simovert masterdrives - Derating Curves Explanation

10.99 Technical Data
Siemens AG 6SE7087-6KP50
SIMOVERT MASTERDRIVES Operating Instructions 11-5
10 30 500
25
50
75
100
0
Coolant temperature in °C
Permissible rated current in %
20 40
1000 2000 3000 40000
75
100
Height above sea level in m
Permissible rated input voltage in %
according to VDE 0110 / IEC 664-1
(not required by UL / CSA)
1000 2000 3000 40000
70
80
90
100
60
Height above sea level in m
Permissible rated current in %
Temp
[°C]
Derating
factor K
2
50 0.879
1.045
1.25 *35
1.12540
Height
[m]
Derating
factor K
1
1000
1.0
0.9
2000
0.8
4000
0.845
3000
1.375 *30
1.5 *
25
50
*See note
below
Fig. 11-1 Derating curves
Derating curves