Samlexpower SSW-350-12A Manuel Du Propriétaire page 4

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IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT WIRING INFORMATION
Substantial power loss and reduced battery operating time results from inverters installed with wires that are
not sized correctly based on the length and the current required to be carried. Current flowing through a wire
produces voltage drop along its length due to the resistance of the wire and due to the value of the current
carried through it. The resistance of the wire is inversely proportional to the cross-sectional area of the wire
(designated in mm or AWG) and directly proportional to its length i.e. thinner and longer wire has higher
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resistance and hence, produces higher voltage drop. Similarly, thicker and shorter wire has lower resistance and
hence, produces lower voltage drop. Hence, symptoms of low DC input voltage / battery power can result from
wires that are either excessively long or have an insufficient cross-sectional area (designated in mm or AWG).
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The wires should be sized based on the maximum current they are required to carry and the distance between
the battery and the inverter to limit the voltage drop to 2% to 5%.
Wires are rated based on its insulation, temperature and operating environment. Please ensure that the wire
insulation is of the appropriate type for the operating environment.
The installer/operator should be especially aware of the requirements to maintain secure, tight, water-resistant
electrical connections and to provide for strain relief for DC wires and appliance wiring.
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