Installation | 15
Table 2: Recommended Fuse Sizing for a 12 V Install
12 V Inverter R-12-1200RS3 R-12-2000RS3 R-12-3000RS3
Fuse Size (A) 200 250 450
Fuse Type MEGA MEGA MEGA
Fuse ratings are suitable to these recommended minimum cable sizes.
RECOMMENDED CABLE AND FUSE SIZING FOR A 24V INSTALL
Table 3: Recommended Cable Sizing for a 24 V Install
Combined Positive and
Negative Cable Length
R-24-1200RS3 R-24-2000RS3 R-24-3000RS3
mm
2
AWG mm
2
AWG mm
2
AWG
0–1 m (0–3.9')
16 6 25 4 35 2
1–2 m (3.9–6.6')
25 4 50 1 55 1/0
2–3 m (6.6–9.8')
35 2 55 1/0 95 3/0
3–4 m (9.8–13.1')
50 1 95 3/0 120 4/0
4–6 m (13.1–19.7')
70 2/0 120 4/0 - -
Table 4: Recommended Fuse Sizing for a 24 V Install
24 V Inverter R-24-1200RS3 R-24-2000RS3 R-24-3000RS3
Fuse Size (A) 100 150 225
Fuse Type MIDI or MEGA MIDI or MEGA MEGA
Fuse ratings are suitable to these recommended minimum cable sizes.
3.2 LUG REQUIREMENTS
The DC Input terminals are equipped with M8 (5/16") studs. It essential to select a cable lug designed to
suit an 8 mm (5/16") stud and the required cable gauge for your installation.
If your selected lug size doesn't allow for re-attachment of the shrouds use an alternative method to
cover and protect the terminal studs.
Figure 8: Lug Stud Hole Size
29mm (1.14")
34mm (1.34")
19.2mm
(0.75")
8mm (5/16")
Stud Hole
8mm
(5/16")
14mm
(0.55")
26mm (1")
Input Terminal
13mm
(0.5")
24mm (0.95")
12mm
(0.5")
Inverter
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