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Component folio · Charger · Victron

Victron MultiPlus II 12/3000

Model MultiPlus-II 12/3000/120-50

3000VA inverter/charger, 120A charge, transfer switch. 12 V DC input/output.

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Victron MultiPlus II 12/3000
Victron MultiPlus II 12/3000 · 6 terminals
01 — Wiring diagram

How the MultiPlus 3000 is wired

Victron MultiPlus II 12/3000 wiring diagram WIRING DIAGRAM Victron MultiPlus II 12/3000 wiring diagram 12 V battery bank Supplies this load MultiPlus 3000 Victron · MultiPlus-II 12/300… 350 A 120 mm² (4/0 AWG) → DC + 120 mm² (4/0 AWG) → DC − 3 m one way AC IN L AC IN N AC OUT L AC OUT N crimp.studio 215 A · 1.6% drop · ABYC E-11
Victron MultiPlus II 12/3000 wiring diagram, 120 mm² (4/0 AWG) positive feed protected by a 350 A fuse and a matching negative return between the 12 V battery bank and the unit, plus AC IN L, AC IN N, AC OUT L, AC OUT N.

The run drawn here is the 3 m reference run sized below. Sized against ABYC E-11. Boats built to UK or EU rules answer to ISO 13297 — check these figures against it before you build. Confirm your own run length, routing and terminations before ordering — open this part in the designer to size it against your actual system.

02 — Reference run

What size cable and fuse does the MultiPlus 3000 need?

Conductor120 mm²4/0 AWG
Fuse350 Apositive run
Voltage drop1.6%3 m one way
Design current215 A12 V system

Sized against ABYC E-11. Boats built to UK or EU rules answer to ISO 13297 — check these figures against it before you build. The design current is the part's continuous draw. The Crimp engine applies its ordinary continuous-load headroom, voltage-drop budget, terminal clamp, and standard fuse ladder. The 3 m one-way run is a stated reference, not a universal installation prescription.

03 — Catalog specification

Victron MultiPlus II 12/3000 specifications and terminal map

Compatible systems
12 V
Rated power
2,400 W
Continuous draw
215 A
Rated output
120 A
Surge current
500 A

Terminal map

TerminalPolarityDirectionRating
AC IN Lneutralinput50 A
AC IN Nneutralinput50 A
DC +positiveinput400 A
DC −negativeinput400 A
AC OUT Lneutraloutput25 A
AC OUT Nneutraloutput25 A
04 — Supporting parts

What else you need to wire the MultiPlus 3000

  • 6 m total of 120 mm² (4/0 AWG) marine cable
  • Four 120 mm² cable lugs matched to the equipment studs
  • 350 A fuse and holder on the positive run
  • Heat-shrink, strain relief, and terminal boots sized to the cable

Start from this part

Open the canvas with the MultiPlus 3000 already placed, then wire the rest of the system around it. Nothing to install and no sign-up — the project is saved in this browser, and you can download the file whenever you want it.

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05 — Method & provenance

What is known, assumed, and computed.

Catalog profile

The manufacturer, model, ratings and terminal map are maintained as planning data in Crimp's component catalog. Confirm the current manufacturer manual, exact revision and installed nameplate before ordering or wiring.

Engine reference

Sized against ABYC E-11. Boats built to UK or EU rules answer to ISO 13297 — check these figures against it before you build. The published conductor, fuse and voltage-drop result uses the visible reference length and current basis; it is not a universal installation prescription.

Read the complete methodology →
06 — Related components

Alternatives to the MultiPlus 3000

Browse all charger profiles →