Updated Diagram 600W Toyota Hiace System


New Member
Apr 16, 2021
Big thanks to everyone who helped me out with my first drawing. I made some updates to the design based on the feedback I got and am much happier with the system. I'm still a bit unsure about my choices for fuses and wire gauges so I may be a bit conservative there. I changed the diagram style hopefully it's easier to read. I expect small loads on this system, about 150-200W continuous load. But it would be nice to accommodate a power tool now and again so peak loads of ~1500 to 2000 W are expected. Please let me know if I missed anything!

Original Post is here:
Parts List
$1,006Batteries12/24vDeep Cycles 3.2v 280ah Lifepo4 272ah Lishen Lifepo4 Battery - Buy Lifepo4 Battery 280ah 3.2v,Lishen Lifepo4,Lifepo4 272ah Product on Alibaba.com
$227Amp Solar Charge Controller24vAmazon.com: Victron Energy SmartSolar MPPT 100V 30 amp 12/24-Volt Solar Charge Controller (Bluetooth): Industrial & Scientific
$128BMS24v8s BMS 100a LifePo4 Battery Management System for 24v DIY Batteries, Programmable, Bluetooth Included. – Overkill Solar
$215Inverter24vAmazonSmile: Xijia 2000W (Peak Power 4000W) Pure Sine Wave Inverter DC 24V to AC 120V 60HZ Solar Converter for Home Use car (DC24V (Range 20V-30V) 2000W): Car Electronics
$3612V Transformer24v to 12vAmazonSmile: uxcell New BIG-Size Voltage Converter Regulator DC/DC DC 24V to DC 12V 40A 480W Buck Transformer Waterproof: Electronics
$12Entry Gland2-6mmAmazonSmile: Link Solar Weatherproof ABS Solar Double Cable Entry Gland for All Cable Types 2mm² to 6mm² for Solar Project on Rv, Campervan, Boat: Garden & Outdoor
$16Battery Fuse100ampAmazonSmile: WindyNation ANL Fuse Holder + ANL Fuse (2pcs 100A Fuse): Car Electronics
$27Charge Controller Breaker40ampAmazonSmile: T Tocas 50 A Circuit Breaker amp breakers with Switch Manual Reset for Boat Marine RV Yacht Battery Trailer Bus Truck, 12V - 48V DC, Waterproof (50A): Automotive
$48BusBar150ampAmazonSmile: Blue Sea Systems 150 Amp Common BusBar with 4 studs and a cover, 2307: Sports & Outdoors
$66Fuse Box2xAmazonSmile : Blue Sea Systems 5025 ST Blade Fuse Block - 6 Circuits with Negative Bus and Cover, 3.32'' x 4.89'' : Auxiliary Fuse Block : Sports & Outdoors
$28Breaker30ampAmazonSmile: T Tocas 30 Amp Surface-Mount Circuit Breakers with Manual Reset, 12V- 48V DC, Waterproof (30A): Automotive
$52GFCI Panel Mount20ampLeviton Ground Fault Circuit Interrupters - LevitonProducts.com
$5Junction Box1xJunction Box Outdoor Waterproof IP68 3 Way Plug Line M25 Coaxial Cable Connector Wire Range 4 to14mm Electrical External Power Cord Junction Boxes - - AmazonSmile
$18Outlet4xJourneyman-Pro 5279 15 Amp 120-125 Volt, NEMA 5-15 Flanged Outlet, Black Commercial Grade, 2 Pole-3 Wire, Straight Blade Plug Charger Receptacle (w/Front Cover) - - AmazonSmile
$24.00Junction BoxFor BusbarOtdorpatio Junction Box IP65 Waterproof ABS Plastic Electrical Project Case Power Junction Boxes, Project Box with Fixed Ear Black 7.87 x4.72 x2.95 inch (200x120x75 mm) - - AmazonSmile
$30.00On/Off Switch2xAmazonSmile: Battery Switch, 12V 24V 48V Battery Disconnect Master Cutoff Switch for Marine Boat RV ATV UTV Vehicles, Waterproof Heavy Duty Battery Isolator Switch (On/Off): Automotive
$11.00Cable Glands1xCable Gland Nylon Plastic Waterproof Adjustable, Cable Glands Joints Wire Protectors- Pg7, Pg9, Pg11, Pg13.5, Pg16 35pcs - - AmazonSmile
$609Fridge12v/24vTF65 Semi- Truck and commercial truck refrigerator (truckfridge.com)
$25Lights Ceiling12vAmazonSmile: acegoo RV Boat Recessed Ceiling Light 4 Pack Super Slim LED Panel Light DC 12V 3W Full Aluminum Downlights, Warm White (White): Automotive
$602 Gear Fans12vAmazonSmile: Noctua NF-A20 PWM, Premium Quiet Fan, 4-Pin (200x30mm, Brown): Computers & Accessories
$21Fan Controller12vAmazonSmile: Noctua NA-FC1, 4-Pin PWM Fan Controller (Black): Computers & Accessories
$724x 110VJourneyman-Pro 5279 15 Amp 120-125 Volt, NEMA 5-15 Flanged Outlet, Black Commercial Grade, 2 Pole-3 Wire, Straight Blade Plug Charger Receptacle (w/Front Cover) - - AmazonSmile
RV Ceiling Fan
USB Ports
USB-C Ports
12V Ports
Update to this diagram in case anyone else is building a similar system. I adjusted all of my gauges and fuses, I think I've got it just about right.