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BATTERY CONNECTION
CABLES AND FUSES SIZE
DC cables (battery – inverter) must be as short as possible. Do not exceed 1,8 meter.
In order to avoid a voltage drop higher than 5% when the product is used at a high power
(and avoid that the inverter is placed in protection mode), DC cables must be of sufficient
!
cross section.
The "Low Battery" protection can intervene if the voltage drop is excessive between the battery
and the converter.
DC cables must be of the proper color: red for the positive cable, black for the negative one.
In order to protect your installation, especially in case of a short-circuit, use a DC ultra fast fuse on the positive
cable placed as close as possible to the battery.
Here is the table to select your cables cross section and the fuse to use between the battery and the inverter.
Model
UNIPOWER 800.12 PRO
UNIPOWER 800.24 PRO
UNIPOWER 1200.12 PRO
UNIPOWER 1200.24 PRO
UNIPOWER 1800.12 PRO
UNIPOWER 1800.24 PRO
UNIPOWER 2400.12 PRO
UNIPOWER 2400.24 PRO
UNIPOWER 3600.12 PRO
UNIPOWER 3600.24 PRO
*For a use of the continous power during 30 minutes per day
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Cable cross section
(max 1,8m)
25mm²
25mm²
25mm²
25mm²
35mm²
25mm²
50mm²
35mm²
70mm²
35mm²
www.uniteck.fr
Recommended
Fuse
battery capacity*
125A
80A
Minimum 100Ah
200A
100A
250A
125A
Minimum 220Ah
350A
200A
500A
Minimum 400Ah
250A
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