Fusing Of The Outputs - Dynacord PRO MATRIX SYSTEM DEM 314 Owner's Manual

2.1 Fusing of the outputs

The battery has individually fused outputs to connect the consumers. Thus all departing plus and
minus lines are protected against excess current and short circuits. Wires with different cross-sections
for consumers with low and high current can be connected to a battery at the same time, providing
the fuse values of their individual outputs are chosen accordingly. The maximum value of the fuses
must not, however, exceed 20 A.
The sum 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 certain outputs are not used, the fuses are to be removed and the fuse values above the fuse
switches are to be covered over with the enclosed blank sticky labels.
The output fused with 3 A is intended to facilitate 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 load stability
due to lower heat dissipation.
Number of lines
16 bis 30
Module type
DEM 287 power amplifier 125 W
DEM 288 power amplifier 250 W
DEM 289 power amplifier 400W
mit NRS 90 144
DPA 4410 power amplifier
DPA 4411 power amplifier
DPA 4120 power amplifier
DPA 4140 power amplifier
Table I Fuse values of the battery outputs for connection of power amplifiers
The following is a guideline for bundled lines
2 bis 5
6 bis 10
Current consumption at Ubat = 24V
Standby rated power
10 mA
10 mA
10 mA
2,5 mA
60 mA
2,5 mA
2,5 mA
Reduction factor
rated power
-10 dB
2,5 A 5,7 A
3,5 A 10,6 A
7,0 A 19,7 A
18 A
7,5 A
18 A
7,5 A
9,1 A
3,74 A
17,3 A
7,1 A
18
0.8
0.7
0.5
Fuse value
7,5 A
10 A
20 A
20 A
20 A
10 A
20 A