VOLTCRAFT NPI Série Notice D'emploi page 22

300/500/1000/2000 W devices
As high currents flow through the connection cables when operating the inverter (see technical data), the
connection cables must be dimensioned accordingly.
The thicker and shorter the connection cable, the lower the voltage loss in the cable.
High voltage loss may lead to low voltage supply to the inverter, although the battery provides sufficient
supply voltage. Therefore, it is important to keep the connection cable as short as possible.
The 300W and 500W devices are supplied with permanently attached connection cables. The following
lead diameters are required for the 1000W and 2000W devices.
1000W:
2000W:
We recommend securing the connection cable close to the battery with a separate fuse to
prevent damage to the battery through short-circuits of the connection cable (worn cables,
etc.). The fuse must be designed for the max. input current of the inverter.
The high current requires you to ensure that the connection cables are securely connected to both the
battery and the inverter. Therefore, you may only use connection cables with ring terminal lugs.
We recommend only using the optionally available connection cables we supply.
Prior to attaching the inverter to the battery voltage, turn it off. To do so, put the switch (1) to the position
"OFF".
The 300W and 500W inverters are connected to the supply voltage via the permanently installed input
cables (15). The plus pole of the battery must be connected with the red input cable and the minus pole
of the battery with the black input cable.
The 1000W and 2000W inverters are connected to the supply voltage via the two input clamps (4 and 5).
The plus pole of the battery must be connected to the input clamp "POS+" (4), the minus pole of the bat-
tery to the input clamp "NEG-" (5).
Ensure a tight and secure connection of the connection cable to the battery as well as
with the input clamps of the inverter. A poor connection leads to high bridging resis-
tances and leads to overheating.
up to 2 m 25 mm
2
up to 2 m 35 mm
2
up to 3 m 35 mm
2
up to 3 m 50 mm
2
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