Victron energy MultiPlus-II 48/3000/35-50 120V Manuel page 12

DC CONNECTION PRECAUTIONS
Connect and disconnect DC output connections only after setting any marine
unit switches to off position and removing AC cord from electric outlet or
opening AC disconnect.
EXTERNAL CONNECTIONS TO CHARGER SHALL COMPLY WITH THE UNITED
STATES COAST GUARD ELECTRICAL REGULATIONS (33CFR183, SUB PART I).
GROUNDING INSTRUCTIONS – This marine unit should be connected to a grounded,
metal, permanent wiring system; or an equipment-grounding conductor should be run
with circuit conductors and connected to equipment-grounding terminal or lead on unit.
Connections to unit should comply with all local codes and ordinances
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. The DC cables must be copper and rated 90ºC (194ºF) See table.
Recommended battery capacity (Ah)
Recommended DC fuse
Recommended cross section (mm
0 – 5 m
5 – 10 m
Recommended cable lugs
size
AWG 2/0 Molex part no. 19221-0243
AWG 2 Molex part no. 19221-0233
* Follow local installation rules.
** Do not locate battery cables in a closed conduit.
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 a torque wrench with insulated box spanner in order to avoid shorting the
battery.
Recommended torque: 12 Nm (M8 nut)
Avoid shorting the battery cables.
• Undo the two screws at the bottom of the enclosure and remove the service panel.
Connect the battery cables: see Appendix A.
•
• Tighten the nuts well for minimal contact resistance.
• The connector goes on first, then the flat washer, lock washer and nut. Tighten the nuts well for minimal contact resistance.
10
48/3000/35
100–400
125 A
2 ) *, **
AWG 2
AWG 2/0