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The Duoetto heater

CABLE LENGTH AND CURRENT CAPACITY GUIDE SHOWING CABLE SIZE IN mm².

Current in amps



C
a
b
l
e

L
e
n
g
t
h

(
m
e
t
r
e
s
)
12
16
20
25
32
50
63
80
105
125
155
1
1
1.5
2.5
4
6
10
16
25
35
50
70
2
2.5
2.5
4
4
6
10
16
25
35
50
70
3
4
4
6
6
10
16
16
25
35
50
70
4
4
6
6
10
10
16
25
25
35
50
70
5
6
6
10
10
16
25
25
35
50
50
70
6
6
10
10
16
16
25
25
35
50
70
70
7
10
10
16
16
16
25
35
50
70
70
Over
8
10
10
16
16
25
35
50
50
70
Over
9
10
16
16
25
25
35
50
70
Over
10
10
16
16
25
25
50
50
70
11
10
16
16
25
25
50
70
70
12
16
16
25
25
25
50
70
Over
13
16
16
25
25
35
50
70
14
16
16
25
25
35
70
70
15
16
25
25
25
35
70
Over
16
16
25
25
35
50
70
17
16
25
25
35
50
70
8 B&S=
8mm²
18
16
25
25
35
50
70
6 B&S=
13.5mm²
19
25
25
25
35
50
Over
4 B&S=
20mm²
20
25
25
35
50
50
3 B&S=
25mm²
30
35
35
50
70
Over
40
35
50
70
Over
50
70
70
Over
60
70
over
70
Over


E.g. Duoetto 12 volt 10 litre Water Heater draws 22 amps per hour on 12 volt and if it is 4 metres from the battery. It requires a cable of at least 8mm² or 8 B&S.
This chart is a guide only.
Note: Cable capacity at 12.6 volt to a maximum loss of 5%.