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Installing and connecting the refrigerator
6.6
Connecting the refrigerator to DC voltage
A
NOTICE! Damage hazard
• To avoid voltage drops and loss of performance, keep the
connection cable as short as possible and not be interrupted.
Therefore avoid additional switches, plugs or power strips.
• Disconnect the cooling device and other electric consumers from
the battery before you connect the battery to a quick charging
device. Overvoltage can damage the electronics of the device.
The refrigerator can be operated with a 12 V or a 24 V DC voltage supply.
For safety reasons, the refrigerator is equipped with an electronic system to prevent
the polarity being reversed. This protects the refrigerator against reversed polarity
when connecting to a battery and against short circuiting.
To protect the battery, the refrigerator switches off automatically if the voltage is
insufficient (see table below).
Cut-off voltage
Cut-in voltage
1. Determine the required cross section of the cable in relation to the cable length
according to:
– 12 V: fig. d
d
t Ø 2,5 mm²
24
Ø/mm²
12
10
8
6
4
2
0
0
1
2
3
4
12 V
10.4 V
11.7 V
12 Vg
l/m
5
6
7
8
CRX
24 V
22.8 V
24.2 V
EN
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