Full Off-Grid System — Power Board (4B) For Campervan Conversion

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£4,279.02
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Van Layout: Small Van A
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SKU:
SYS-4B-SVA
Full-Time Off-Grid · Full Electric Living · Board-Based Install

Full Off-Grid — Power Board (4B)

✓ XS 50A DC-DC Charging✓ 760W Rigid Solar✓ 3000Va Multiplus II inverter/charger✓ 460Ah Lithium Included✓ Cerbo GX Monitoring
The flagship complete system in one purchase — XS 50A power board, 760W rigid solar, Multiplus II 3000Va inverter-charger, Lynx and Cerbo GX monitoring, mains and a 460Ah lithium battery

One purchase and your camper is a full-time home — 760W of solar, a Multiplus II 3000Va inverter-charger, a 460Ah lithium battery, and proper system monitoring on a touch screen. The aim here is to cover all of your fusing, switching, wiring, battery and charging for the complete electrical system. Every part is specified to work together. This is the system for living in the van, not just escaping it for a weekend. The 12V side runs on our XS 50A power board — the Orion XS DCDC charger at 98.5% efficiency, pre-wired and tested. The solar side is its own pre-wired board with the SmartSolar 150/45 MPPT sized for the 760W array with cold-weather margin. Between them, a Victron Lynx Distributor handles the high-current busbar connections safely. The Multiplus II 3000Va delivers 2400W continuous pure sine — induction cooking, kettle, air fryer, hair dryer — and charges at up to 120A when you hook up. The Cerbo GX with its touch display puts the whole system on one screen, with remote monitoring through the free VRM portal. Pre-programmed in house before dispatch.

  • 12V Power Board (XS 50A) — pre-wired, pre-fused, pre-programmed and tested, with van layout loom and battery cable included
  • Rigid Solar + Power Board Kit — 4× 190W Victron panels on a SmartSolar 150/45 MPPT power board, controller pre-programmed and isolator mounted
  • Victron Multiplus II 3000Va inverter-charger with DC leads and isolator — pre-programmed in house
  • Mains 240V Power Board for Multiplus — 2 x RCBO mains protection, pre-wired via Powercon plugs and tested
  • Interconnects between power boards are done via Heavy Duty Anderson connectors
  • Victron Lynx Distributor — safe, tidy high-current busbar distribution
  • Cerbo GX Mk2 with touch display — whole-system monitoring, remote via VRM
  • Fogstar Drift Gen2 460Ah lithium battery — 5,888Wh with Bluetooth monitoring

☀️ Solar Yield — Real UK Estimates

760W array (4× 190W) — Summer

1,816Wh

approx. 142Ah per day

760W array (4× 190W) — Winter

562Wh

approx. 44Ah per day

Real UK seasonal estimates from our power calculator's solar model — 2.39 effective sun-hours/day in summer, 0.74 in winter. Yields shown per full day.

🔋 Estimated Runtime

Based on the System Builder’s appliance power and daily-use settings, with a 460Ah × 12.8V = 5888Wh lithium battery. Each tile shows one load on its own, with no solar or alternator charging; no reserve or losses are deducted. Real mixed-use runtime will be shorter.

Compressor Fridge (48L)

~18.4 days

40W × 8h/day = 320Wh/day

LED Down Lights x 4

~147.2 days

8W × 5h/day = 40Wh/day

Phone/Tablet Chargers

~147.2 days

20W × 2h/day = 40Wh/day

12V TV (24 inch)

~65.4 days

30W × 3h/day = 90Wh/day

Diesel Heater

~83.6 days

8.8W × 8h/day = 70.4Wh/day

Water Pump

~392.5 days

60W × 0.25h/day = 15Wh/day

🔌 What Can It Run?

The MultiPlus-II 3000VA delivers 2400W of continuous pure sine 240V power and provides up to 120A battery charging on hook-up. Here is what it can realistically run off-grid:

All Small Appliances

10-400W
Phones, laptops, lights and TV together

✓

Standard Kettle

2000-2400W
High battery draw — use sparingly

✓

Microwave

700-1200W
No problem within the total limit

✓

Hair Dryer

1200-2000W
Suitable for normal use

✓

Toaster

800-1500W
Short use

✓

Air Fryer

800-1800W
Check the appliance label

✓

Single-Ring Induction Hob

1800-2000W
High battery draw — short cooking periods

✓

Two High-Load Appliances

2400W
Combined loads above this exceed the continuous limit

✗

Combined Load Examples

Kettle + small background loads: keep the combined total at or below 2400W

Microwave + television + lights + device charging: typically around 1500W

Wattages are typical values — check each appliance label and combined rating. High-power cooking and heating loads draw substantial current from a 12V battery bank.

📦 What's Included

1

12V Power Board (XS 50A)

  • Pre-wired board with the Victron Orion XS 50A charger (98.5% efficiency), fusing, busbars, and terminals installed and tested. Bluetooth via VictronConnect. Brings with it:
  • battery cable kit (25mm²), crimped to order for your layout
  • 12-pin van layout wiring loom — pre-made to your chosen layout with cables for all show appliances
2

Rigid Solar + Power Board Kit (4× 190W)

  • 4× Victron 190W monocrystalline panels with 25-year performance warranty
  • Isolated Solar PV Power Board — SmartSolar 150/45 MPPT controller pre-programmed and isolator mounted, sized for the array with cold-weather voltage margin
  • Array cabling kit — Series connection, MC4, roof-entry gland, inline fusing per string
  • Mount kits for every panel
3

Mains 240V Power Board for Multiplus

  • Pre-wired mains board with 2 x RCBO protection, hook-up inlet, and socket outlets, wiring specified for the Multiplus input/output. With Wiring configuration — connect and it works.
4

Victron Multiplus II 3000Va Inverter-Charger (with leads)

  • 2400W continuous pure sine inverter with built-in 120A multi-stage charger and automatic transfer switch. Pre-programmed in house. Supplied with professionally crimped DC battery leads and isolator switch, sized for the inverter's current draw.
5

Victron Lynx Distributor

  • Safe, modular high-current busbar distribution with fusing for the inverter, charger, and battery connections — the tidy way to join a system this powerful.
6

Cerbo GX Mk2 with Touch Display

  • The system's monitoring and control hub — battery, solar, and inverter on one screen, plus remote monitoring through the free Victron VRM portal (internet required).
7

Fogstar Drift Gen2 460Ah Lithium Leisure Battery

  • LiFePO4 lithium with built-in Bluetooth monitoring and battery heating — 5,888Wh of storage. The tank that makes everything else in this kit worthwhile.

⚡ Key Features

01Built for Living In

760W of solar and 5,888Wh of storage cover a real daily budget — fridge, lighting, cooking, devices — with the alternator and hook-up as backup rather than lifeline. This is the system for full-time off-grid.

02Serious 240V, Not a Compromise

2400W continuous pure sine means real appliances, not just phone chargers: induction cooking, kettle, air fryer, hair dryer. And when you do hook up, 120A of charging refills the 460Ah battery overnight.

03Everything on One Screen

The Cerbo GX shows the whole system live — battery state, solar harvest, inverter load — on its touch display, and remotely via the VRM portal. No app-hopping between components.

04Pre-Wired, Tested, Pre-Programmed

The boards are assembled and bench-tested in the UK; the Multiplus II arrives pre-programmed in house. Your installation is routing cables and making connections — not configuring an electrical system.

🔧 Tech Specs

  • DC-DC Charging : Victron Orion XS 50A (98.5% efficiency, Bluetooth, smart alternator compatible)
  • Solar : 4× 190W Victron monocrystalline panels + SmartSolar 150/45 MPPT
  • Inverter : Multiplus II 3000Va — 2400W continuous pure sine, 120A charger, transfer switch, pre-programmed in house
  • Mains : Multiplus power board (2 x RCBO protection, Powercon-linked) with hook-up inlet
  • Monitoring : Cerbo GX Mk2 + touch display, remote via Victron VRM
  • Battery : Fogstar Drift Gen2 460Ah LiFePO4 (5,888Wh, Bluetooth)
  • Distribution : 12-way fusing + Victron Lynx Distributor
  • Layouts : 10 — Small Van A-D, Large Van 1-6 (loom and battery cable drawn to order)
  • Construction : CNC-machined phenolic plywood boards, UK-assembled
  • Warranty : 1 year (Rayne Automotive) + 5 years (Victron)

📐 Component Dimensions

Component dimensions (L x W x H) — tap to expand and check your fit-out space
  • 12V Power Board (XS 50A): 354 x 245 x 150 mm
  • Solar PV Power Board (SmartSolar 150/45 mounted): 245 x 250 x 160 mm
  • Mains 240V Power Board for Multiplus: 350 x 254 x 130 mm
  • Victron Multiplus II 3000Va inverter/charger: 546 x 275 x 147 mm
  • Victron Lynx Distributor: 290 x 170 x 80 mm
  • Victron Cerbo GX Mk2 + GX Touch display: Cerbo GX Mk2 78 x 154 x 48 mm; GX Touch 50 87 x 128 x 12.4 mm / Touch 70 113 x 176 x 13.5 mm
  • 4 x 190W rigid solar panels: 1485 x 668 x 30 mm each (10.5 kg)
  • Fogstar Drift Gen2 460Ah lithium battery: 520 x 238 x 221 mm

🔌 You Might Also Need

MC4 Internal Connector Service

clean pass-through cable entry for the solar run

C-line Sockets & Switches

your 240V outlets and 12V fittings for the living area

Roof-mount fixings & sealant

not supplied with the mount hardware

❓ FAQ

Can this really run a full-time off-grid setup?

Yes — that's the brief. 760W of solar gives roughly 142Ah per summer day, which covers fridge, lighting, devices, and daily cooking with margin. The 460Ah battery carries you through grey stretches, and the alternator and hook-up refill it fast when needed. In the depths of winter you'll lean on driving and hook-ups more — as any solar system does.

Which layout should I choose?

We offer 10 layouts — Small Van A-D and Large Van 1-6 — with looms and cables drawn to order. For a full-time build with fixed appliances, call or email us before ordering and we'll talk through the layout and cable runs — custom layouts are routine for us.

I'm not sure which system level I need.

Try our online System Builder at systembuilder.rayneautomotive.co.uk — it sizes a system to how you actually use your van. If you're cooking electrically most days or living aboard, this is the one; for off-grid trips and weekends the Off-Grid Adventure is the better fit.

What does the Cerbo GX add?

One screen for the whole system instead of separate apps — battery state, solar harvest, inverter load, tank levels if you add sensors — plus remote monitoring from your phone anywhere via the free VRM portal. It's the difference between owning components and having a system.

Vendor: Rayne Automotive
Type: DC Battery Systems
Van Layout: Small Van A, Small Van B, Small Van C, Small Van D, Large Van 1, Large Van 2, Large Van 3, Large Van 4, Large Van 5, Large Van 6
SKU: SYS-4B-SVA