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3-5. DC Wiring Connections
Follow this procedure to connect the battery cables to the DC input terminals
of the Inverter. The cables should be as short as possible (less than 10 feet /
3 meters ideally) and large enough to handle the required current in
accordance with the electrical codes or regulations applicable to the
installation. Cables that are not an adequate gauge (too narrow) or too long
will deteriorate inverter performance such as poor surge capability and
frequent low-input voltage warnings and shutdowns.
These low input voltage warnings are due to DC voltage drop across the
cables from the inverter to the batteries. The longer and narrower the cables,
the greater the voltage drop.
Increasing DC cable size helps improve the situation. SAMLEX AMERICA
INC. recommends the following cables for optimum inverter performance.
Model No
Wire AWG
Inline Fuse
SA-2000K-112
# 2/0
250 A
SA-2000K-124
# 1/0
125 A
3-5-1. Connect the cables to the power input terminals on the rear panel of
the inverter. The red terminal is represents positive (+) and black
terminal represents negative (-). Insert the cables into the terminals
and tighten the screw to clamp the wires securely.
Ensure all the DC connections are tight (torque to
9 – 10 ft-lbs, 11.7 – 13 Nm). Loose connections may
cause overheat and fire.
WARNING!
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