Filter
Top Products
2.3 Fusing the inputs and outputs
The batteries have individually fused outputs for the load connections. Thus all plus and minus lines are
protected against excess currect and short. Different line cross-sections for consumers with low and high
current can be connected to a battery at the same time, providing that the fuse values of their individual
outputs are chosen accordingly. The maximum value of the fuses must not, however, exceed 20 A.
The total amount of the currents of all the output fuses in a fuse block must not exceed 50 A.
If the fuse values are changed, the current values printed on the units above the fuse switch are to be
covered with the enclosed sticky labels. The fuse values for the appropriate plus and minus outputs must
always be the same.
If any outputs are not used, the fuses are to be removed and and fuse values above the fuse switches
are to be covered over with the enclosed blank sticky labels.
The output secured with 3 A is intended for connection of the control module DEM 207.
The cross-sections of the lines connected must be correctly dimensioned for the fuse value
selected. Please note that lines laid in cable channels have a lower permissible current loading due to
lower heat dissipation.
The following are guidelines for bundled lines
Number of lines Reduction factor
2 to 5
6 to 15
16 to 30
0.8
0.7
0.5
Module type
Current consumption at Ebat = 24 V
Standby rated power rated power
-10 dB wert
Fuse value
DEM 287 power amp. 125 W
DEM 288 power amp. 250 W
DEM 289 power amp. 400 W
with NRS 90 144
10 mA
10 mA
10 mA
2.5 A
3.5 A
7 A
5.7 A
10.6 A
19.7 A
7.5 A
10 A
20 A
Table I Fuse values of the battery outputs for connection of power amplifiers