CrimpVictron Orion XS 12/12-50
Non-isolated 50A DC-DC charger with high efficiency.
Open in Crimp →
How the Orion XS 50A is wired
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.
What size cable and fuse does the Orion XS 50A need?
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.
Victron Orion XS 12/12-50 specifications and terminal map
- Rated output
- 50 A
- Typical charge current
- 48 A
Terminal map
| Terminal | Polarity | Direction | Rating |
|---|---|---|---|
| IN + | positive | input | 70 A |
| IN − | negative | input | 70 A |
| OUT + | positive | output | 50 A |
| OUT − | negative | output | 50 A |
What else you need to wire the Orion XS 50A
- 20 ft total of 6 AWG (16 mm²) marine cable
- Four 6 AWG cable lugs matched to the equipment studs
- 70 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 Orion XS 50A 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.
Installation notes from the field
What it does
Charges a house battery from the vehicle's alternator circuit at up to 50 A, with input and output current limits you set in VictronConnect. It is non-isolated (input and output share a negative), and at around 98.5% efficiency it runs without a fan.
Wiring it
The input side comes from the starter battery or alternator feed; the output side goes to the house bank. Both legs carry real current, so both get sized and fused — not just the output. Engine-run detection works from the input voltage, so no ignition-trigger wire is required in the common case.
What people get wrong
Sizing the input wiring for the 50 A output. A DC-DC charger is not lossless and its input voltage can sit below its output voltage while charging, so the input side draws more than 50 A — around 60 A at full load. Victron's manual calls for a 60–70 A fuse on the input; an input leg wired at 50 A runs hot and nuisance-blows.
Supporting parts
- Fuses on both legs, at the battery end of each run — the input per the manual's 60–70 A recommendation
- Cable lugs matched to the unit's terminals and the fuse holders
- A negative return sized like the positive runs — non-isolated does not mean current-free
Verified against the manufacturer's datasheet, checked 2026-08-01. Manufacturer datasheet →
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 →