Connecting the air-conditioning unit Installation instructions REVO-E
36
The following table lists the cable cross-section specifications:
ATTENTION: The air-conditioning unit (Master/Slave) must be electrical protected in the power supply line (24 VDC and 600 VDC) by the vehicle
manufacturer.
Vehicle mounted A/C-units Wires according ISO 6722 class B (-40°C … 100°C)
Max. ambient temperature
[°C]
Normal cross section
[mm²]
Max. current carrying
capacity calculated according
DIN VDE 0298-4
[A]
Max. allowed fuse rating
according DIN 72581*
70
0,75 13 10
1,0 16 15
1,5 20 20
2,5 27 25
43630
64640
10 62 60
16 84 70
25 110 100
35 135 130
50 169 150
* The fuse has also to be rated for the equipment to be connected.
Voltage drop has to be calculated: Max. allowed voltage drop ∆U on the cable within the A/C unit is 1V.
∆U=
L*I*2
L- length, I- nominal current, A- cross section, κ- electrical conductivity = 56
m
κ*A
Ώ*mm²
If calculated voltage drop is higher then next higher cable diameter has to be used.
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