VE150 Cooling Unit
16
ELECTRICAL CONNECTIONS
The electronic unit must be connected directly to the battery or the main switch, protected by safety
systems: fuses, automatic switches or circuit breakers in the case of AC power. The fuse for the direct
current electrical connection must be at least 15 A for 12 VDC and at least 7.5 A for 24 VDC.
It is very important to use cables with the right cross-section for the main power supply.
The minimum cross-section of the cables, in proportion to the distance between the unit and battery, is
shown in the table:
Cable cross-section
(mm²)
Max length (m) 12 VDC
Max length (m) 24 VDC
2.5
0 – 2.5
0 – 5
4
2.5 – 4
5 – 8
6
4 – 6
8 – 12
To avoid loss of voltage and power, the cable must be as short as possible and not be interrupted.
The electrical unit includes electronic protection against polarity reversal. To protect the battery, the unit
shuts off automatically when the voltage is no longer sufficient.
12 VDC
24 VDC
Cut-Out
Cut-In
Max
Cut-Out
Cut-In
Max
9.6 V
10.9 V
17 V
21.3 V
22.7 V
31.5 V
If the cooling unit is supplied with a connection to earth with an AC network (100-240 VAC), it is necessary
to insert a protective circuit breaker between the electrical mains and the cooling unit (∆I 0.03 A).
