A Proper 48V System for Your Bus — Without Overspending.
Watch this to learn how to pick the right bus system for your needs 👇
If you're building a bus or large motorhome and want to live comfortably off grid, this is our entry-level 48V system — dependable for day-to-day use without going overboard on budget.
A Victron MultiPlus-II 3000VA, two solar chargers, alternator charging, a 12V supply and 10kWh of BSLBATT lithium. Start here and expand the battery bank later.
🎁 Every kit includes 3 x free 30-minute phone calls with Landon — a licensed sparky who designed this system and lives off grid in a bus himself. Use them to plan your install, troubleshoot on the day, or get your Victron app set up properly. You're not buying a box of parts and getting left to figure it out yourself.
What's in the Kit
Inverter
1x Victron MultiPlus-II 48/3000/35-32 230V
The heart of the system. 3000VA of 240V power with a built-in battery charger — plug into a caravan park, a power point at home or a generator and it charges your batteries and passes power through automatically.
Monitoring
1x Cerbo GX MK2
1x GX Touch 70 Display
2x VE.Direct Cable 0.9m
1x 2m UTP CAT5 Cable
1x VE.Can to CAN-bus BMS Type B Cable 1.8m
See your solar, battery level and power use on the touchscreen, or check in from your phone through Victron's free VRM portal (with an internet connection).
Distribution & Fusing
1x Noark MCCB 125A 500VDC 2 Pole (main battery breaker)
1x Victron Lynx Distributor
3x 60A MEGA Fuse (solar chargers and 12V supply)
Everything on the DC side is fused and lands on the Lynx Distributor, with the Noark breaker as the main battery isolation — a clean, safe layout that's easy to service.
Solar Chargers
2x Victron SmartSolar MPPT 150/45
1x 4 Pole DC Distribution Enclosure
2x Noark 25A DC Circuit Breaker (solar isolation)
Two separate solar chargers handle up to 4,500W of solar panels. Splitting the array means shade from an air-con unit, roof hatch or tree only affects half of it.
Charges your 48V house batteries from the bus's 12V or 24V alternator while you drive — so a big travel day tops the batteries up even when it's cloudy.
Runs your 12V gear — water pump, fans, lights, USB points and the fridge if it's 12V — straight from the 48V battery bank.
AC Distribution
1x 8 Pole AC Distribution Board
1x Hager 32A RCBO 2 Pole 30mA
1x Hager 16A RCBO 2 Pole 30mA
Batteries
2x BSLBATT 48V 5.12kWh Rack Mount LiFePO4 Battery (10.24kWh total)
Lithium iron phosphate — the safe chemistry. Rack-mounted, tidy, and they talk to the Victron system over CAN-bus. Backed by BSLBATT's 5-year warranty for bus and motorhome installs. 10.24kWh is a good starting point for weekenders and light full-time use.
The battery bank is fully scalable — add more batteries later without replacing the inverter or rewiring the system.
Cables & Lugs
Everything you need to wire the DC side of the system:
2m of 6mm² 2Core+Earth 240V Cable
2m of 4mm² 2Core+Earth 240V Cable
10m of 10mm² Twin DC Cable (solar chargers)
3m of High Quality 35mm² DC Flex Cable
8m of 6mm² Earth Cable
1x Pack 35mm² Lugs with 8mm Hole (25 pieces)
1x Pack 10mm² Lugs with 6mm Hole (25 pieces)
1x Pack 6mm² Lugs with 6mm Hole (10 pieces)
1x Pack Bootlace Pins 10mm² and 6mm²
Wiring Diagram
A professional wiring diagram is included with this kit. It's been purpose-built for this exact system so you know precisely how everything connects together — no guesswork, no Googling. Whether you're handing it to your sparky or working through the install yourself, it makes the whole job a lot smoother.
What Can It Run?
A typical bus or large motorhome on this system would comfortably run:
Fridge/freezer and microwave
Induction cooktop (one zone at a time)
Lighting, TV and entertainment
Laptop, phone charging and small appliances
Coffee machine or kettle (one big load at a time)
Note: This kit does not include solar panels or solar mounting hardware. It also does not include AC wiring beyond the distribution board.
Delivery: we ship Australia-wide from trusted stockists' warehouses — see our Shipping and Returns page for details.
Is This a DIY Kit?
Yes — everything here is designed to be installed by a competent DIYer or licensed electrician. The DC side (batteries, inverter, MPPT) can be self-installed. The AC connections must be done by a licensed electrician to comply with Australian standards.
Not sure if this is the right size for your setup? Book a free call with Landon — he's a sparky who'll give you a straight answer.
📞 Your 3 Free Support Calls — Here's How They Work
When your order is confirmed, you'll receive a unique booking code via email. Use it to book up to 3 x 30-minute calls with Landon directly through our scheduling page — at no extra cost.
Most customers use them like this:
Call 1 — Pre-install planning: Run through your layout, cable runs, and any site-specific questions before you start
Call 2 — During the install: Got stuck or something doesn't look right? Jump on a call and we'll sort it out
Call 3 — Commissioning & setup: Get your Victron Cerbo GX configured, VRM portal connected, and system running properly
Calls must be redeemed within 6 months of purchase. Bookings are made through our Acuity scheduling page at a time that suits you.
Why Zero Grid?
We're not a big box retailer. We're a family travelling Australia in a bus, running the exact kind of systems we sell. When you buy from us you get honest advice, locally stocked gear, and someone who actually picks up the phone.
