Victron energy MultiPlus 12/3000/120 – 50 - 4.2 Battery cable connection procedure

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4.2 Connection of battery cables
In order to utilize the full capacity of the product, batteries with sufficient capacity and
battery cables with sufficient cross section should be used. See table.
12/3000/120 24/3000/70 48/3000/35
Recommended battery capacity (Ah) 400–1200 200–700 100–400
Recommended DC fuse 400A 300A 125A
Recommended cross section (mm
2
)
per + and - connection terminal
0 – 5 m 2x 50 mm
2
50 mm
2
35 mm
2
5 – 10 m 2x 70 mm
2
2x 50 mm
2
2x 35 mm
2
* ‘2x’ means two positive and two negative cables.
Remark: Internal resistance is the important factor when working with low capacity
batteries. Please consult your supplier or the relevant sections of our book “Energy
Unlimited”, downloadable from our website.
Procedure
Proceed as follows to connect the battery cables:
Use an insulated box spanner in order to avoid shorting the battery.
Avoid shorting the battery cables.
- Undo the four screws at the front of the enclosure and remove the front panel.
- Connect the battery cables: see Appendix A.
- Tighten the nuts well for minimal contact resistance.