Installation Manual

Battery Bank Preparation
975-0239-01-01 Rev J 2–15
This manual is for use by qualified personnel only
Overcurrent
protection
Terminal covers Color-coded snap-on DC terminal covers are included to avoid accidental
contact with the terminals. Terminal covers are required for all installations, even
if a Conext XW+ Conduit Box is used. It is also recommended that the shank of
the ring terminals (cable lugs) be covered with heat shrink or some other form of
insulation.
WARNING
DC OVER CURRENT
The NEC/CEC requires both DC over current protection and a DC disconnect
switch for residential and commercial electrical systems. Fuses and
disconnects must be sized to protect the wiring in the system and are required
to open before the wire reaches its maximum current carrying capability.
Failure to follow these instructions can result in death or serious injury.
Note: The NEC/CEC requires both overcurrent protection and a disconnect
switch for residential and commercial electrical systems. These items are not
supplied as part of the inverter, but are included with the Conext XW+ Power
Distribution Panel.
Table 2 -2 Recommended Battery Cable Size Versus Length
Inverter Model Up to 5 Feet (1.5 m) (90°C wire)
Up to 10 Feet (3 m)
(90°C wire)
Conext XW+ 5548
NA
#2/0 AWG (70 mm
2
) #4/0 AWG (120 mm
2
)
Conext XW+ 6848
NA
#4/0 AWG (120 mm
2
) #4/0 AWG (120 mm
2
)
Table 2 -3 Battery Cable (in Conduit) to Maximum Breaker/Fuse Size
Cable Size Required Maximum Breaker/Fuse Size
#2/0 (00) AWG (70 mm
2
)
175 amps
#4/0 (0000) AWG (120 mm
2
)
250 amps
XW-NA-Install.book Page 15 Wednesday, August 12, 2015 2:23 PM