RVS Power Systems Multi 12-3000-120-100 Pre-Wired Victron Power Board, Portrait

RVS Power Systems Multi 12-3000-100: Complete Off-Grid Power System for Caravans and Motorhomes

Pre-Wired, Programmed, and Certified Victron Power Board — Portrait Layout for Space-Efficient Installation

The RVS Power Systems Multi 12-3000-100 delivers a fully integrated, professionally assembled power system for caravans, motorhomes, and campervans. By combining a Victron 3000VA MultiPlus-II inverter/charger, 50A SmartSolar MPPT controller, 50A Orion XS DC-DC charger, SmartShunt 500A battery monitor, and Cerbo GX communication hub on a single board, this unit eliminates the complexity, time, and risk of a custom electrical build. Every component is pre-wired, programmed, tested, and documented, so you’re not fault-finding before you’ve even left Christchurch.

Engineered for 12V lithium battery systems, the Multi 12-3000-100 suits owners who want reliable, high-capacity power for induction cooking, climate control, and off-grid living. The portrait orientation (approximately 530 x 750 x 170mm) fits neatly behind a fridge, under a bed, or in a seat box, keeping your living space intact.

Why a Pre-Wired, Certified Board Reduces Risk and Saves Time

Custom wiring a multi-component power system requires advanced electrical knowledge, specialised tools, and hours of labour. Mistakes in cable sizing, fuse selection, or termination can cause voltage drop, overheating, or fire. The Multi 12-3000-100 mitigates these risks with correctly rated circuit protection, a validated layout, and electrical work carried out and Certificate of Compliance issued by a registered New Zealand electrician before the board leaves our workshop. Each board is functionally tested before dispatch.

Important: our CoC covers the electrical work on the board itself, built to AS/NZS 3001.2:2022 and AS/NZS 3000:2018. Your installing electrician must still inspect, test, and certify the complete vehicle installation once the board is fitted, including the connections to your battery, solar panels, and vehicle wiring.

Key Components and Benefits

• Victron MultiPlus-II 12/3000/120 Inverter/Charger: Powers 230V appliances up to 2400W continuous, with a 120A mains charger for rapid shore-power top-ups. The automatic transfer switch ensures uninterrupted power when connecting to or disconnecting from the grid.
• Victron SmartSolar MPPT 100/50: Bluetooth-enabled solar charge controller with fast Maximum Power Point Tracking, maximising harvest from your rooftop panels. Pre-terminated with a red Anderson connector for plug-and-play solar input.
• Victron Orion XS 12/12-50 DC-DC Charger: Adaptive charging from your vehicle’s alternator, with a recovery mode for deeply discharged batteries and a grey Anderson connector for straightforward starter battery connection.
• Victron SmartShunt 500A: Precise state-of-charge, voltage, current, and time-to-go data via Bluetooth, with configurable low-battery alarms.
• Victron Cerbo GX: Central monitoring and control for the whole system, remote access and alerts via the VRM Portal, an adjustable AC input current limit so the board never overloads a campsite’s power, and a CAN-bus port for direct communication with an SOK lithium battery’s own BMS, when one is supplied.
• Integrated Protection and Distribution: A fused DC distribution block with correctly rated breakers, a Class T or MEGA main fuse, and 70mm² double-insulated power cable sized for the full inverter load. Type A 30mA RCBOs protect both the incoming AC supply and the inverter output.

Designed for New Zealand Conditions

Every component is selected for durability in mobile and off-grid environments: vibration, temperature swings, and damp. The MultiPlus-II’s toroidal transformer and conformal-coated electronics resist both. All connections use tinned copper lugs to prevent corrosion, and the board is built to a checklist with final inspection before it ships.

Optional: Direct Battery Communication

Pair the board with an SOK lithium battery to connect the Cerbo GX directly to the battery’s own management system over CAN-bus, for cell-level data and BMS-managed charging. Ask us about adding SOK batteries to your order.

Simplified Installation and Documentation

Each Multi 12-3000-100 ships with a wiring diagram and installation guide covering the connections to your solar panels, starter battery, and AC loads, for your installing electrician. Prefer us to handle the full fit-out? Our Christchurch workshop offers installation for North and South Island customers, or ask about freight delivery if you’re using your own electrician.

Power Your Build with Confidence

Choose the RVS Power Systems Multi 12-3000-100 for a turnkey, certified electrical system built in Christchurch. Custom built, plug and play — and backed by paperwork that tells your electrician exactly what’s already been done.