Recommended battery capacity (Ah)
100-400
Recommended DC fuse
125 A
Recommended cross section (mm2 ) per +
and - connection terminal *, **
0 – 5 m***
AWG 2
5 – 10 m***
AWG 2/0
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
*** “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 a torque wrench with an 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.
MultiPlus-II 48V 3kVA 120V
Page 12
Installation