2 INSTALLATION GUIDE
Output Wire Diameter Selection
To ensure the house battery is charged as quickly as possible, use the appropriate
cable to connect the BMS to the house battery. The BMS should be mounted as
close as possible to the house battery. Table 2.3.2 lists the recommended cable
sizes based on a cable voltage drop of 0.3V @ 15A.
Minimum cable size is 2.9 mm² or 5mm auto (less than 1m length). Maximum
cable size is 8mm² or 6B&S (no need to use values higher than this). For longer
runs using 8mm² is recommended, however this will lower effi ciency by up to 3%
(the recommended maximum length is 5m).
NOTE: Redarc has determined these recommended cable sizes based on 50°C
maximum ambient temperature, a single cable loom and does not include any
connection losses. The installer is responsible for ensuring that these cables
are indeed suitable for the vehicle installation.
Distance (metres) from
BMS1215S2 to House
battery
Recommended Cross
Sectional Area
(mm²)
Recommended
Diameter
Equivalent
0.5 2.9 5mm auto
0.75 3.2 6mm auto
1 4 6mm auto
1.25 5 8 B&S
1.5 6 8 B&S
1.75 7 8 B&S
2 8 6 B&S
Figure 2.3.2 - Recommended cable sizes
based on a cable voltage drop of 0.3V @ 15A
17
To Next Page
Loading...
