8.1.1
Max. load dependent on ambient temperature and line voltage.
The maximum permissible temperature for the rated current at rated voltage is speci
fi
ed as rated
temperature.
Since the dissipation of the power loss (heat development) in the device is decisively dependent on
the ambient temperature, the max. load must be reduced at an ambient temperature above the rated
temperature (
following table)!
The average value measured during a 24 h period must be 5 K under the max. ambient temperature.
For installation in a switch cabinet, the device
’
s dissipation and its possible affect on the ambient
temperature must be taken into consideration!
Since the power loss in the device increases with rising line voltage, the following table must be
observed.
Maximal load depending on line voltage and ambient temperature
Type
208 V (-15 %)...415 V (+6 %)
over 415 V (+6 %)...480 V (+10 %)
40
°
C
50
°
C
55
°
C
40
°
C
50
°
C
55
°
C
FU-BS 2,5
2.5 A
2.2 A
2.0 A
2.5 A
1.8 A
1.6 A
FU-BS 5,0
5.0 A
5.0 A
5.0 A
5.0 A
5.0 A
5.0 A
FU-BS 8,0
8.0 A
7.0 A
6.5 A
8.0 A
6.5 A
6.0 A
FU-BS 10
10.0 A
10.0 A
10.0 A
10.0 A
10.0 A
10.0 A
FU-BS 14/16
16.0 A
13.0 A
12.0 A
14.5 A
12.5 A
11.5 A
Installation and Operating Speci
fi
cation
FU Basic
Enclosure
L-BAL-E187-GB 1703 Index 002
Part.-No.
19/22
Summary of Contents for 05459-001
Page 68: ......
