Max. Load Dependent On Ambient Temperature And Line Voltage - Helios FU-BS Series Manual

Installation and Operating Specification FU Basic
8.1.1

Max. load dependent on ambient temperature and line voltage.

The maximum permissible temperature for the rated current at rated voltage is specified 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 (
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
FU-BS 2,5
FU-BS 5,0
FU-BS 8,0
FU-BS 10
FU-BS 16
L-BAL-E187-GB 2004 Index 003
following table)!
208 V (-15 %)...415 V (+6 %)
40 °C 50 °C
2.5 A 2.2 A
5.0 A 5.0 A
8.0 A 7.0 A
10.0 A 10.0 A
16.0 A 13.0 A
Part.-No.
55 °C 40 °C
2.0 A 2.5 A
5.0 A 5.0 A
6.5 A 8.0 A
10.0 A 10.0 A
12.0 A 14.5 A
19/22
over 415 V (+6 %)...480 V (+10 %)
50 °C
1.8 A
5.0 A
6.5 A
10.0 A
12.5 A
Enclosure
55 °C
1.6 A
5.0 A
6.0 A
10.0 A
11.5 A