© 2016 Sensata Technologies
Page 19
Installation
2.4.4
Wiring the Battery Bank
WARNING:
Lethal currents will be present if the positive and negative cables attached
to the battery bank touch each other. During the installation and wiring process, ensure
the cable ends are insulated or covered to prevent touching/shorting the cables.
Info:
DO NOT connect the DC wires from the battery bank to the inverter until 1) all DC
and AC wiring is complete, 2) the correct DC and AC overcurrent protection has been
installed, and 3) the correct DC voltage and polarity have been veri
fi
ed.
Info:
For the MS Series inverter/charger to perform optimally, a minimum battery bank
of 200 AH is recommended for moderate loads (<1000W) and greater than 400 AH for
heavy loads (
≥
1000W).
Depending upon the voltage of the batteries you use in the installation (6 or 12 VDC), the batteries
must be wired in series, parallel, or series-parallel to provide the correct voltage (see Appendix
B – Battery Information for guidance on wiring batteries together). The interconnecting DC wires
must be sized and rated exactly the same as those used between the battery bank and the inverter.
Place the batteries as close as practical to the inverter, preferably in an insulated and ventilated
enclosure. Allow adequate space above the batteries to access the terminals and vent caps (as
applicable). Also, allow at least 1” (2.5 cm) of space between the batteries to provide good air
fl
ow. DO NOT mount the batteries directly under the inverter.
CAUTION:
Install batteries in a well ventilated area. Batteries can produce explosive
gasses. For compartment or enclosure installations, always vent batteries to the outside.
Info:
To ensure the best performance from your inverter system, batteries should be
of the same size, type, rating, and age. Do not use old or untested batteries.
Figure 2-7, Battery Hardware
Installation
Figure 2-8, Inverter DC Hardware
Installation
battery cable
(with ring lug)
nut
split washer
Battery
Temperature
Sensor
battery
post
CAUTION:
Ensure nothing is
placed between
the cable ring lug
and battery post.
5/16-18
Flange or
Kep nut
battery cable
(with ring lug)
Inverter DC terminal
(
5/16–18 bolt,
5/8" usable length
)
CAUTION:
Ensure nothing is
placed between the DC
terminal and ring lug.