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Component folio · Charger · Victron

Victron MPPT 100/20

Model SmartSolar 100/20

20A MPPT, max 290W @ 12V / 1160W @ 48V, 100V PV. The only small SmartSolar that also charges 48V banks; Bluetooth and VE.Direct built in.

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Victron MPPT 100/20
Victron MPPT 100/20 · 4 terminals
01 — Wiring diagram

How the MPPT 100/20 is wired

Victron MPPT 100/20 wiring diagram WIRING DIAGRAM Victron MPPT 100/20 wiring diagram 12 V battery bank Charged by this unit MPPT 100/20 Victron · SmartSolar 100/20 25 A 10 AWG (6 mm²) → BATT + 10 AWG (6 mm²) → BATT − 10 ft one way PV + PV − crimp.studio 20 A · 3.0% drop · ABYC E-11
Victron MPPT 100/20 wiring diagram, 10 AWG (6 mm²) positive feed protected by a 25 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 10 ft reference run sized below. Sized against ABYC E-11 — the US reference, and what Transport Canada accepts as an alternative to TP 1332 for pleasure craft under 24 m. 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 100/20 need?

Conductor10 AWG6 mm²
Fuse25 Apositive run
Voltage drop3.0%10 ft one way
Design current20 A12 V system

Sized against ABYC E-11 — the US reference, and what Transport Canada accepts as an alternative to TP 1332 for pleasure craft under 24 m. 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 10 ft one-way run is a stated reference, not a universal installation prescription.

03 — Catalog specification

Victron MPPT 100/20 specifications and terminal map

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

Terminal map

TerminalPolarityDirectionRating
PV +positiveinput20 A
PV −negativeinput20 A
BATT +positiveoutput20 A
BATT −negativeoutput20 A
04 — Supporting parts

What else you need to wire the MPPT 100/20

  • 20 ft total of 10 AWG (6 mm²) marine cable
  • Four 10 AWG cable lugs matched to the equipment studs
  • 25 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 100/20 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 — the US reference, and what Transport Canada accepts as an alternative to TP 1332 for pleasure craft under 24 m. 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 100/20

Browse all charger profiles →