Redarc RS3 Series User Manual

14 | Installation
3 INSTALLATION
3.1 CABLE AND FUSE REQUIREMENTS
WARNING: When exposed to high temperatures (such as found in engine bays and adjacent
exhaust components), use suitably rated high-temperature cables and conduits. Avoid routing cables
over sharp edges or where moving parts of the vehicle could adversely affect the cable. Conduit
should also be used to protect cables against physical damage in vulnerable locations.
CAUTION: Batteries are capable of supplying very large currents. Fuses must be placed as close as
possible to the positive battery terminal to protect the cable from damaging currents — failure to do so
could cause re or personal injury.
NOTICE: A cable size that is below the specication for the installation length, will result in an increased
voltage drop when the inverter is under load. Common symptoms of incorrect cable size may include poor
surge capability, low input voltage warnings, shutdowns, and overheating/melting of the cable.
For cable connections from the Inverter to the supply batteries refer to Table 1 and Table 3 for the
correct cable size; and refer to Table 2 and Table 4 for correct fuse sizes.
REDARC recommend for the cables to be short as possible being no longer than the values
in Table 1 and Table 3 and to apply heatshrink to the DC Input cables.
The cable between the Inverter and battery must be a large enough gauge to prevent excessive voltage
drop over its length. As voltage drop occurs between battery positive and ground, the total cable install
length of positive and negative cable combined must be considered (refer to Figure 7).
Figure 7: Total Cable Length
Positive Cable
(not supplied)
Positive Length
Negative Length
NOTE: Total Length = Positive Length + Negative Length
Negative Cable
(not supplied)
RECOMMENDED CABLE AND FUSE SIZING FOR A 12V INSTALL
Table 1: Recommended Cable Sizing for a 12 V Install
Combined Positive and
Negative Cable Length
R-12-1200RS3 R-12-2000RS3 R-12-3000RS3
mm
2
AWG mm
2
AWG mm
2
AWG
0–1 m (0–3.9')
25 4 50 1 55 1/0
1–2 m (3.9–6.6')
50 1 95 3/0 120 4/0
2–3 m (6.6–9.8')
70 2/0 120 4/0 - -
3–4 m (9.8–13.1')
95 3/0 - - - -

Redarc RS3 Series Specifications

General

Brand	Redarc
Model	RS3 Series
Category	Inverter
Language	English