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Component folio · Charger · Victron

Victron MPPT 250/100

Model SmartSolar 250/100

MPPT solar charge controller. 100A output, max 1450W @ 12V, 250V PV. Bluetooth built in; 12/24/48V battery voltage auto-detected.

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Victron MPPT 250/100
Victron MPPT 250/100 · 4 terminals
01 — Wiring diagram

How the MPPT 250/100 is wired

Victron MPPT 250/100 wiring diagram WIRING DIAGRAM Victron MPPT 250/100 wiring diagram 12 V battery bank Charged by this unit MPPT 250/100 Victron · SmartSolar 250/100 125 A 35 mm² (2 AWG) → BATT + 35 mm² (2 AWG) → BATT − 3 m one way PV + PV − crimp.studio 100 A · 2.5% drop · ABYC E-11
Victron MPPT 250/100 wiring diagram, 35 mm² (2 AWG) positive feed protected by a 125 A fuse and a matching negative return between the 12 V battery bank and the unit, plus PV +, PV −.

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 MPPT 250/100 need?

Conductor35 mm²2 AWG
Fuse125 Apositive run
Voltage drop2.5%3 m one way
Design current100 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 unit's rated output. 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 MPPT 250/100 specifications and terminal map

Compatible systems
12 V / 24 V / 48 V
Rated output
100 A
Typical charge current
100 A
PV open-circuit limit
250 V

Terminal map

TerminalPolarityDirectionRating
PV +positiveinput70 A
PV −negativeinput70 A
BATT +positiveoutput100 A
BATT −negativeoutput100 A
04 — Supporting parts

What else you need to wire the MPPT 250/100

  • 6 m total of 35 mm² (2 AWG) marine cable
  • Four 35 mm² cable lugs matched to the equipment studs
  • 125 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 MPPT 250/100 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.

Open the canvas →

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 MPPT 250/100

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