Component folio · Charger · Victron

Orion-Tr Smart 48/12-30

Isolated 48→12 V step-down DC-DC charger, 30 A output. The canonical converter on a 48 V hybrid sailboat / ePropulsion install: feed it from the 48 V epro bank's positive bus, run the output to a 12 V buffer battery or directly to the house bus. Galvanic isolation between input and output, so the 48 V negative does not have to be bonded to the 12 V negative.

Open in Crimp →

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Victron Orion-Tr Smart 48/12-30 · 4 terminals

01 — Reference run

A sizing result with its assumptions attached.

Conductor10 mm²8 AWG

Fuse40 Apositive run

Voltage drop2.6%3 m one way

Design current30 A12 V system

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.

02 — Catalog specification

The part the engine actually sees.

Rated output: 30 A
Typical charge current: 28 A
Canvas footprint: 200 × 110 px

Terminal map

Terminal	Polarity	Direction	Rating
IN +	positive	input	12 A
IN −	negative	input	12 A
OUT +	positive	output	30 A
OUT −	negative	output	30 A

03 — Supporting parts

What belongs around it.

6 m total of 10 mm² (8 AWG) marine cable
Four 10 mm² cable lugs matched to the equipment studs
40 A fuse and holder on the positive run
Heat-shrink, strain relief, and terminal boots sized to the cable

See what it changes in your system

With JavaScript enabled, describe your existing boat, van, or off-grid system here. The model supplies topology; Crimp's engine computes the attachment, resized runs, checks, and supporting basket.