Making Dc Wiring Connections - Helios RM-PSW2KVA Series User Manual

2-6. Marking DC Wiring Connections:
Follow this procedure to connect the battery cables to the DC input terminals on the
PSW2KVA/E Inverter. Your cables should be as short as possible (ideally, less than
10 feet / 3 meters) and large enough to handle the required Current in accordance
with the electrical codes or regulations applicable to your installation.
Cables that are not an adequate gauge (too narrow) or are too long will cause
decreased 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 these cables, the greater the voltage drop.
Increasing your DC cable size will help improve the situation.
Our company recommends the following cables for optimum inverter performance
(apply both 120V and 230V versions)
Model No
RM-PSW122KVA
RM-PSW122KVAE
RM-PSW242KVA
RM-PSW242KVAE
RM-PSW482KVA
RM-PSW482KVAE
RM-PSW1102KVA
RM-PSW1102KVAE
RMPSW2202KVA
RM-PSW2202KVA
Also, use only high quality copper wiring and keep cable length short from 3-6 feet.
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.
Wire AWG
#2/0
#2/0
#1/0
#1/0
#2
#2
#8
#8
#16
#16
11
Input Current
233A
230A
114A
111A
54A
52A
24A
24A
12A
12A
Inline Fuse
250A
250A
125A
125A
70A
70A
25A
25A
15A
15A