Samlex America S1500 - Manual (Page 14)

3-5. Making DC Wiring Connections：
Follow this procedure to connect the battery cables to the DC input terminals
of the Inverter. Your cables should be as short as possible ( ideally, less
than 6 feet / 1.8 meters ) enough to handle the required current in accordance
with the electrical codes or regulations application. Cables are not an
adequate gauge ( too narrow ) or too long will decrease the inverter
performances such as poor surge capability and low input voltage warnings
frequently and shutdowns. UVP warning presents due to DC voltage drop
across the cables from the inverter to the batteries.
The longer or narrower the cables, the greater the voltage drop.
Increasing your DC cable size will help improve the situation.
Model No Wire AWG Inline Fuse
S1500-112 # 2 200A
S1500-212 # 2 200A
S1500-124 # 4 130A
S1500-224 # 4 130A
S1500-148 # 6 50A
S1500-248 # 6 50A
WARNING!
The installation of a fuse must be on positive cable.
Failure to place a fuse on “+” cables running between
the inverter and battery may cause damage to the
inverter and will void warranty.
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