Everything you need to design safe, professional electrical panels.
Drag and drop components onto DIN rails, just like building a real panel.
Place MCBs, RCDs, RCBOs, contactors, surge protectors, and isolators directly onto DIN rails. Resize and reorder with ease.
Choose from standard panel sizes or define custom dimensions. Support for 1-row to multi-row enclosures.
Name every circuit, assign rooms, and add notes. All data flows into your exported schedule automatically.
Catch dangerous configurations before they leave your screen.
Warns when circuit loads exceed breaker ratings or when total panel load approaches main switch capacity.
Ensures all circuits requiring RCD protection have it. Validates 30mA for socket outlets and wet areas.
Validates your design against the selected earthing system (TT, TN-S, TN-C-S, TN-C, IT) and flags incompatibilities.
Checks upstream/downstream coordination to ensure selective tripping without cascading outages.
Issues appear in real time as you design. No need to run a separate validation step — safety is always on.
Built around IEC 60364 and HD 60364 series. Designed to help you meet EU installation standards.
Get the right cable for every circuit, automatically.
Enter load, cable length, and installation method. BreakerBoxx calculates the minimum cross-section per IEC/HD standards.
Ensures cables meet voltage drop limits for the circuit type — 3% for lighting, 5% for other uses.
Supports reference methods A1, A2, B1, B2, C, D, E, F, and more. Derating factors applied automatically.
Professional documents your clients and inspectors expect.
Complete table of all circuits with breaker type, rating, cable size, load, and circuit description.
Itemised list of every component with quantities. Hand it straight to your supplier for quoting.
Visual representation of your DIN rail layout as it will appear in the physical enclosure.
BreakerBoxx is offline-first. No cloud sync, no accounts, no telemetry.
Install it, use it. No activation servers, no license checks that phone home.
We don't collect data. We don't even have the infrastructure for it. Your designs are yours.
Runs on Windows, macOS, and Linux. Built with Tauri for native performance on every platform.