CR1203
16
5.5 Operating voltage and circuit breakers
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The individual electric circuits must be protected in order to protect the whole system.
Automotive spade-type fuses are recommended.
Designation
Connector 1
Operating voltage
Nominal value fuse
Required triggering
characteristics
VBB
15
Pin 119
8...16 V DC and 16…
32 V DC
Ignition-starter switch
3 A
T
fuse
≤ 120 s at max.
6.25 A
VBB
30
Pin 121
8...16 V DC
5 A
T
fuse
≤ 120 s at max.
6.25 A
16…32 V DC
3 A
T
fuse
≤ 120 s at max.
6.25 A
VBB
0
Pin 114
8...16 V DC and 16…
32 V DC
15 A
-
Digital inputs
Pin 115, 116, 89, 97,
110
8...16 V DC and 16…
32 V DC
3 A
T
fuse
≤ 120 s at max.
6.25 A
Tab. 1: Terminal designation to DIN 72552
Supply cables of the inputs can be secured together with the circuit breaker for VBB
15
.
ATTENTION
Load dump and surge without connection of VBB
0
w
Destruction of the device possible!
u
Always connect VBB
0
, even if the outputs are not used or are not available.
5.6 Shield connection
To ensure the protection of the device against electrical interference and to ensure the safe
function of the device, the housing has to be connected to the body / GND of the supply using
the shortest possible route.
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Establish the connection between the device and the ground of the vehicle using the intended
screw for RAM
®
Mount installation. If possible, use the thread next to the 40-pole AMP connector.
Max. tightening torque: 5 Nm
Fig. 13: Shield connection
