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24V – 6000W – 120V/240V Split Phase Camper Solar Wiring Diagram

This DIY camper solar wiring diagram and parts list is a high powered system capable of delivering up to 6000w of power through 120V or 240V split phase (3000w through each L1 & L2. This diagram is also capable of charging via solar at a rate of up to 2900w per charge controller added.

This diagram features:

  • Dual 3000W Inverter Charger
  • 800+ Amp Hours (@12V) of Battery Storage Capacity in a 24V Battery Bank
  • Virtually unlimited Solar Array Capacity
  • Alternator Charging (100A)
  • Shore Power Charging/Passthrough

**Disclaimer & Managing expectations** Setting up dual inverters is NOT a ‘beginner friendly’ task. It DOES require some programming via computer to sync the dual inverters so they will deliver 240V split phase properly (2x 120V legs, 180 degrees out of phase). If you don’t understand the concept of the phrase you just read (and are unwilling to learn this concept)… this setup may be a bit too advanced. That said… here are some good resources that talk about some of the nuances of dual inverter setups:

**PLEASE READ ALL USER MANUALS BEFORE ATTEMPTING THIS INSTALL**


Not quite what you are looking for? Check out other system setups here: https://www.explorist.life/solarwiringdiagrams

History of Changes to this Page (Click to Expand)

Post Published December 10, 2020

TABLE OF CONTENTS

HOW TO USE THIS PAGE – VIDEO

This orientation video will show you how to best use this page to build your DIY Camper Solar Setup. It’s a quick watch but I think it’s pretty important.

DIY Camper Van Wiring Diagram

DIY Camper Solar Parts – Shopping List

The list below is a consolidated parts list for this entire system (Minus the solar charging leg, as that varies greatly from system to system. If you need help designing an appropriate solar array for this system, consider joining the EXPLORIST.life private group: https://www.community.explorist.life ).

For the ‘Quantities’ in the below shopping list, each singular component is listed a quanty per each, wire is listed a quantity of feet, and heat shrink is listed as qty 1 = 2.25″.

For Example:

Qty 1 – Inverter Charger means you need to purchase 1 Inverter Charger

Qty 3 – 4/0 Wire means you need 3 feet of 4/0 wire. This may mean you need to buy 5ft from the product page

Qty 5 heat shrink means you need 5 pieces of 2.25″ heat shrink. This means you’ll need 5 x 2.25″ pieces of heat shrink for a total of 11.25″ of heat shrink.

ProductQtyLink
1/2" Black Heat Shrink38
1/2" Red Heat Shrink4
100 Amp MEGA Fuse1
100Ah Battle Born Lithium Batteries8
120V/240V Power Distribution Center - PD55K0001
150 Amp MEGA Fuse1
150A DC Breaker1
2 AWG Black Wire10
2 AWG Red Wire40
2 AWG x 1/4" Wire Lug2
2 AWG x 5/16" Wire Lug6
3/4" Black Heat Shrink24
3/4" Red Heat Shrink22
3000W Victron Multiplus 24V2
4/0 Black Wire49
4/0 Red Wire29
4/0 x 3/8" Wire Lug2
4/0 x 5/16" Wire Lug30
400 Amp ANL Fuse1
400 Amp MEGA Fuse2
50 Amp Shore Power Cord1
50 Amp Shore Power Outlet1
50A 2-Pole QO Main AC Breaker1
6 AWG Black Wire20
6 AWG Ferrule34
6 AWG Red Wire20
6 AWG x 5/16" Wire Lug6
60A AC Load Center1
Battery Interconnect Bars4
Heavy Duty ANL Fuse Holder1
Lynx Adapter2
Master Disconnect1
Victron Buck Boost 100A1
Victron MK3 USB Programming Dongle1
Victron Orion 24|12 - 70A Converter1
Victron SmartShunt1
Victron VE.Bus Cable2
Victron VE.Direct Cable3
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Camper Solar Parts Detail

The section below will tell you where each of the parts from above fits into the wiring diagram. This is quite lengthy, but if you are having trouble seeing the diagram or just want more clarification that the diagram above doesn’t deliver, hopefully this will help:

Column AColumn BColumn C

Battery Bank Wiring

This section contains all of the parts necessary to wire the battery bank together. These products include the batteries as well as the related wiring parts that you will need to make the battery to battery connections.
ProductQtyLink
100Ah Battle Born Lithium Batteries8
4/0 Red Wire9
4/0 Black Wire9
4/0 x 5/16" Wire Lug12
3/4" Red Heat Shrink10
3/4" Black Heat Shrink10
Battery Interconnect Bars4

Battery Bank to Busbars

This section contains all of the parts necessary to wire the battery bank to the main DC distribution busbar (Lynx Distributor). The busbar itself as well as the shunt for the battery monitor and fuse mounted inside to the busbar protecting the positive wire from overcurrent can be found in this section. The busbar is essentially an extension of the battery terminals and allows you to deliver power where it needs to go and houses the fuses necessary to protect the wires leaving the busbar. The Battery monitor allows you to know how full your batteries are, know how much power you are actively gaining or losing, and see the historical data of your power usage.
ProductQtyLink
Lynx Distributor2
Victron SmartShunt1
4/0 Red Wire10
4/0 Black Wire10
4/0 x 5/16" Wire Lug4
4/0 x 3/8" Wire Lug2
3/4" Red Heat Shrink4
3/4" Black Heat Shrink2
400 Amp ANL Fuse1
Heavy Duty ANL Fuse Holder1
Lynx Adapter2
Master Disconnect1

Busbar to Inverter/Charger

This section contains the Inverter Charger and all of the parts necessary to wire the Inverter Charger to the Positive and Negative busbars. The Inverter Charger allows you to re-charge your batteries from 'shore power' and also converts the 24v DC power stored in your battery bank to 120V AC power like you'd find in your standard household wall outlet. The Dual Inverter setup shown also allows 240v power to be provided to 240v appliances through a 120V/240V breaker box.
ProductQtyLink
3000W Victron Multiplus 24V2
4/0 Red Wire10
4/0 Black Wire10
4/0 Black Wire10
4/0 x 5/16" Wire Lug12
3/4" Red Heat Shrink4
3/4" Black Heat Shrink8
400 Amp MEGA Fuse2

Busbar to B2B Charger

This section contains the battery to battery charger as well as the wiring that you need to connect the battery to battery charger to the positive and negative busbars. This will allow you to charge your house battery bank from the engine alternator.
ProductQtyLink
Victron Buck Boost 100A1
2 AWG Red Wire10
2 AWG Black Wire10
2 AWG x 5/16" Wire Lug4
3/4" Red Heat Shrink2
3/4" Black Heat Shrink2
150 Amp MEGA Fuse1

B2B Charger to Alternator

This section contains all of the wiring necessary to connect the battery to battery charger to the starting battery. This will allow you to charge your house battery bank from the engine alternator.
ProductQtyLink
2 AWG Red Wire30
2 AWG x 5/16" Wire Lug2
2 AWG x 1/4" Wire Lug2
3/4" Red Heat Shrink2
150A DC Breaker1

Busbar to DC Fuse Block

This section contains the DC fuse block (which is inside of the AC-DC distribution panel) as well as the wires to connect it to the main DC distribution busbars. This will allow you to deliver power to the DC Fuse block for small branch circuits such as lights, fans, usb outlets, etc..
ProductQtyLink
120V/240V Power Distribution Center - PD55K0001
Victron Orion 24|12 - 70A Converter1
6 AWG Red Wire20
6 AWG Black Wire20
6 AWG x 5/16" Wire Lug6
6 AWG Ferrule2
1/2" Red Heat Shrink4
1/2" Black Heat Shrink8
100 Amp MEGA Fuse1

Busbar to Chassis Ground

This section includes the parts necessary to allow you to ground your negative busbar to the chassis ground. The chassis ground will be connected to the negative busbar on one side and the other side can go to a factory chassis ground or simply anywhere good metal to metal contact can be made between the wire lug and the bare metal of the body or frame of the camper.
ProductQtyLink
4/0 Black Wire10
4/0 x 5/16" Wire Lug2
3/4" Black Heat Shrink2

Shore Power to Inverter/Charger

This section includes the exterior shore power outlet and shore power cord that allows you to plug your camper into shore power as well as all of the wiring that allows you to connect the exterior shore power cord to your inverter charger. This will allow you to not only use shore power for powering your devices but also allow you to charge your batteries from shore power.
ProductQtyLink
50 Amp Shore Power Outlet1
6 AWG 4-Conductor Wire15
6 AWG Ferrule8
1/2" Black Heat Shrink6
50 Amp Shore Power Cord1

Inverter Charger to AC Distribution

This section includes the wiring necessary to connect the inverter charger to the AC side of the AC-DC power distribution panel listed in an earlier section.
ProductQtyLink
6 AWG Triplex Wire30
6 AWG Ferrule24
1/2" Black Heat Shrink24
50A 2-Pole QO Main AC Breaker1
60A AC Load Center1

System Communication

This section includes all of the parts necessary to monitor this system via the Cerbo GX.
ProductQtyLink
Cerbo GX1
GX Touch 501
Victron VE.Direct Cable3
Victron VE.Bus Cable2
Victron MK3 USB Programming Dongle1


Brian Marozzi

Monday 17th of January 2022

Hey Nate,

I’m a huge fan of what you do and offer. I purchased your 24V – 6000W – 120V/240V SPLIT PHASE CAMPER SOLAR WIRING DIAGRAM used your parts lists, watched all of your videos and just finished my installation!!

I have a 45 ft. Momentum 5th Wheel so with lots of roof space I went with 2 arrays each array has 4-330 watt residential panels wired is series/parallel.

I am simply loving it Thanks so much.

My Question is introducing my generator, (onan 5500) thinking of adding a Autotransformer to convert 240 so I can charge through both legs and wondering what gauge wire to use? Got any wiring diagrams for autotransformers?

Greg

Saturday 1st of January 2022

Hello Nate,

How feasible would it be to use a pair of the new Multiplus II 48/3000 in place of the 24V system shown if alternator charging was removed and most of the 12V system retained? Basically powering only the AC side of an RV and only charging the 12V batteries for that system.

With the 50amp pass-through capability of the MPII, could the inverter then share more of the 6000W across either L1 or L2 without dedicating 3000W to each specific leg?

Kevin K

Friday 31st of December 2021

re: my previous comments

Hey there!

As I continue to research, I keep realizing how I'm still learning these concepts :) I mistakenly thought the 230v MultiPlus's were equivalent to 240v but in fact, they are the European standard at 230v and 50hz.

I think I've found some 240v inverters that could be used in tandem with a step-down autotransformer configuration, but alas, none of them were Victron energy. So if I want to go a full Victron Energy setup, I think that means I'd do a step-up with the Autotransformer (which I believe results in some increased power consumption).

Kevin K

Thursday 30th of December 2021

Hey there! I'm designing a camper build with a primarily off-grid 48v battery + solar array system. I need a 240v AC output to power a mini-split and a collection of 120v AC outputs for household applications. Being a software guy and not an electrical engineer, I've been struggling to figure out how to design a system for both 120v & 240v. I found recommendations to use things like transformers or DC-to-DC converters but couldn't find any diagrams that explained it. But it seems like a split phase dual inverter setup is another choice? (maybe it's more efficient than the other solutions.)

After looking at the Victron MultiPlus and MultiPlus II spec sheets, I think there are a few options that fit my parameters:

120v output: * MultiPlus 2 kVA and 3 kVA * MultiPlus-II 48/3000/35-50

240v output: * MultiPlus 800 VA – 5 kVA * MultiPlus-II (48/*/* options)

Do I need to mix and match MultiPlus versions to configure both 120v and 240v outputs? Would I need to stay within the product version? i.e. two MultiPlus or two MultiPlus-II? (i.e. NOT one MultiPlus and one Multi-Plus-II)

I see a footnote on the MultiPlus 800 VA – 5 kVA and MultiPlus-II 48v options that there are models that "Can be adjusted to 60 HZ. 120 V models available on request". Is that the route to go?

The current design has 3x battery packs in parallel of the EG4 48V 100AH lcd battery.

Thanks for the assistance and I'm sure you've heard this before but the depth of information from Explorist Life is awesome!

URLs: * https://www.victronenergy.com/upload/documents/Datasheet-Multiplus-inverter-charger_2kVA-and-3kVA-120V-US-EN.pdf * https://www.victronenergy.com/upload/documents/Datasheet-MultiPlus-inverter-charger--800VA-5kVA-EN-.pdf * https://www.victronenergy.com/upload/documents/Datasheet-MultiPlus-II-inverter-charger-EN.pdf * https://www.victronenergy.com/upload/documents/Datasheet-MultiPlus-II-48V-3kVA-35-50-120V-EN.pdf * https://www.signaturesolar.us/products/48v-100ah-lcd-battery-by-eg4 * https://cdn.shopify.com/s/files/1/0559/2147/5789/files/48V100AH_LCD_SPEC.pdf?v=1631566461&ref=4_rHcgZ9x-TiF-

Charly

Wednesday 29th of December 2021

Hi Nate!! One dude....You say 100amps from buck boost@ alternator, but I think it would be max at @12v. Victron says max. 50 amps at@24v. It would be great if you could make a video with options to charge from alternator.....(Cyrix-li-ct, buck boost,..)Thanks a lot for your job!!