Design your Electrical System in 10 minutes
Build safe, custom 12V or 24V systems for your camper, boat, 4×4, overlander or off-grid cabin — without technical knowledge or risk.
Skip the forums and guesswork — generate your custom wiring diagram in under 10 minutes.
1. Full acces to our software (valued at €150,-)
Plan unlimited systems with automatic circuit logic, fuse sizing, and cable calculations. Save 6–8 hours of research and design.
Instant access right after signup.
Full Shopping list (valued at €35,-)
Save up to 4 hours of searching with a clear overview of every part you’ve selected — including clickable links to high-quality, trusted suppliers only.
Includes a dedicated fuse and wire section: instantly see what size and length of wire you need, and which fuses to use.
Complete Wiring Guide eBook (valued at €27)
Learn the basics of 12V and 24V systems, cable sizing, fuse selection, and common setup mistakes — in simple, beginner-friendly language.
A perfect companion to your wiring diagram. Use it offline or print it for your own project.
Ongoing Updates & Support (valued at €70)
Access regular software improvements and stay compatible with new devices and systems.
Have a question? We’re here to help — you’ll receive priority support for all your wiring-related doubts.
Our offer 🍀
After signing up, you’ll receive an email with a link to your personal dashboard. You can start building your system right away!
Wiring Diagram Software
Your DIY Wiring Shortcut: All essential tools you need in one package:
€282
€97
- Full access to our software (valued at €150)
- Full shopping list with high-quality links (valued at €35)
- Complete eBook (valued at €27)
- Ongoing updates and personal support (valued at €70)
Built for builders. Trusted by 1000+ across the world.
Building a safe and reliable off-grid electrical system is hard — especially if it’s your first time. Most people spend 20+ hours searching forums, comparing wire sizes, and second-guessing every decision. And even then, they’re not sure if it’s right.
Our Software is built differently.
It’s not just a drawing tool. It’s your system logic, safety check, and planning guide — all in one place.
What makes it work so well?
User-friendly, intuitive interface – built for beginners and professionals
Wire and fuse sizing done for you – no more guesswork
Clear diagram with all connections shown – never wonder what goes where
Compatible with 12V & 24V DC setups
Supports AC inputs and outputs: 120V & 230V
Choose metric or imperial: mm²/meters or AWG/feet
Auto-generated shopping list – every part listed and linked
Saves countless hours of research, calculation and design work
About us
We started Camper-Elektra.com in 2021 to help vanlifers in the Netherlands build safe and reliable electrical systems. Since then, our platform has supported thousands of DIYers with clear, custom wiring diagrams. We’ve seen how challenging it can be to design a safe setup — that’s why we developed easy-to-use software that takes the guesswork out of van electrics.
Watch how easy it is to build your custom wiring diagram
Designed for clarity — even if it's your first time
Our software guides you through every step: from choosing the right devices to fuse ratings and cable sizing. All calculations run in the background, so you can focus on building — not figuring out the tech behind it.
Note: professional license not yet available. Contact us for more information.
Still have questions? We’ve got answers.
We’ve helped thousands of DIYers build safe electrical systems, and many had the same questions you might have right now. Below you’ll find clear answers to the most common ones.
FAQ
General
Who is this software for?
Our software is designed for DIY builders who want to create a safe and reliable off-grid electrical system — whether it’s for a camper, boat, 4×4, truck, overlander or tiny home. Perfect for beginners, but accurate enough for semi-pros.
How long do I have access to the tool?
After payment, you’ll start a one-year license that renews automatically. You can cancel at any time — even right after purchase — and you’ll still have full access until the end of your license period.
What language does it support?
At this moment English and Dutch.
well be adding the following languages soon:
- German
- French
- Spanish
- Itallian
How often can I use the tool?
As often as you want. During your active subscription, you can generate unlimited systems.
Do I need any prior experience with electricity?
No, not necessarily, but some basic knowledge is welcome of course. If you read our eBook, you’ll have a good base to start with.
The tool guides you step by step. Everything is calculated in the background. You don’t need to know about voltages, wire sizes or fuses — we take care of that.
What devices are supported?
Our software works best on a computer, but it’s also fully functional on a tablet.
You can use it on a phone as well, though the experience may be less optimal.
Can I promote the software as an affiliate?
No, we don’t have an affiliate program at the moment. We occasionally collaborate with selected content creators. If that applies to you, feel free to reach out via our contact form.
Technical
How does the software actually work?
Our software guides you through a step-by-step process. You select the components you need, and it automatically handles wiring logic, fuse ratings, cable sizing, and more. Everything is calculated in the background — so you can focus on your build.
How are wire sizes calculated?
The software calculates wire size based on current, voltage, and wire length. We follow accepted engineering standards — and where available, we use official manufacturer guidelines to determine correct cable size.
Both metric (mm²/meters) and imperial (AWG/feet) units are supported.
What’s the voltage drop limit?
Our software calculates voltage drop according to industry best practices to ensure safety and performance. For critical power lines such as battery cables, chargers, and inverters, we apply a maximum voltage drop of 2%. For general 12V or 24V appliances like USB outlets and lighting, we allow up to 6%. These limits are based on proven engineering guidelines to ensure your system runs safely and efficiently.
How are fuses sized?
Fuses are automatically sized based on the maximum current the wire can safely handle, including an allowed voltage drop and a built-in safety margin. Whenever possible, we also follow the specifications provided in the manufacturer’s manual. This ensures both your cables and connected devices are properly protected — without the need to calculate anything yourself.
Does it support lithium batteries with a separate BMS?
No. Our software is designed for so-called drop-in batteries with an internal BMS, or for lead-acid based batteries. We may add support for external BMS configurations in the future, but this is not possible at the moment.
What inverters does it support?
No. Our software is designed for so-called drop-in batteries with an internal BMS, or for lead-acid based batteries. We may add support for external BMS configurations in the future, but this is not possible at the moment.
Can I wire my solar panels in parallel?
Yes, you can choose between parallel and series-parallel setups. You can select up to 5 solar panels.
Does it work with both 12V and 24V systems?
Yes, our software allows you to choose both your alternator voltage and your system voltage. You can select either 12V or 24V for each, depending on your setup. This gives you the flexibility to match your electrical system to your specific vehicle and components.
Does it work with both 230V and 120V systems?
Yes, our software supports both 120V and 230V systems. If your mains voltage is 220V or 240V, you can simply select 230V in the software—this will work just fine. These voltages are close enough that they don’t impact how your setup functions.
What other devices are compatible with the software?
Our software is compatible with a wide range of devices, including inverters, batteries, solar charge controllers, and more. For the full and up-to-date list, please visit our dedicated Compatible Devices page.
Payment & Access
How much does it cost?
€97 per year. You get instant access and can build unlimited systems during your subscription.
What happens after I sign up?
You’ll receive an email with login instructions. From there, you can start building your first diagram in minutes.
Do I get access right away?
Yes. Once your signup is complete, you’re ready to go — no delays.
Can I cancel anytime?
Yes. You can cancel at any time. You’ll retain access until the end of your subscription period.
Do you offer refunds?
Because full access is granted immediately, we don’t offer refunds. But if you run into issues, just contact us — we’ll do our best to fix it.
Reliability & Accuracy
Is the software safe to use?
Yes. Your data is securely stored, and we never share it with third parties. We only track anonymized data to improve the tool.
What if I don’t understand how to use it?
Our documentation walks you through the process. And if you’re stuck, just reach out — we’re happy to help.
Can I mess up my wiring if I use this?
No. That’s the point. The software only lets you pick components and setups that work together — so you can’t select incompatible fuses, wrong wire sizes, or unsafe combinations.
Future & Licensing
Is there a version for professional use?
We’re currently building a professional license for installers and businesses who want to create branded diagrams for their customers. Want early access? Let us know.
Can I use this software for commercial projects?
No, not yet. The current version is for personal use only. Our B2B version is in development.
Ready to skip the guesswork?
Build your own custom wiring diagram in under 10 minutes – no experience required.
Not ready yet? Download our 90-page eBook and learn the basics first – completely free for a limited time.
Wiring Diagram Software
Your DIY Wiring Shortcut: All essential tools you need in one package:
€282
€97
- Full access to our software (valued at €150)
- Full shopping list with high-quality links (valued at €35)
- Complete eBook (valued at €27)
- Ongoing updates and personal support (valued at €70)
eBook
We cover: batteries, inverters, fuses, solar panels, and wiring basics — perfect if you’re just getting started.
€27
€0
- Understand the basics of electronics: Watts, Amps etc.
- We talk about Energy storage, Energy Usage and Engergy Input
- Calculate the cacacity for your dream trip and more