Panel & Switchboard Designer

Web version available (PWA): https://electricalpanel.netlify.app/

Panel & Switchboard Designer is a tool for planning an electrical panel the way it will look on the DIN rail: devices, wires, cables and calculations in one place. It works on a phone, tablet and computer, and you can try it in the browser with nothing to install.

HOW IT WORKS

Pick devices from the library and drag them onto the rails: circuit breakers, RCDs, RCBOs, contactors, relays, surge protectors, meters, distribution blocks, terminals, inverters, batteries and more. Describe each group — what it feeds, its load and cable — and the app builds the diagram, the list of groups and the specification.

AUTO-ASSEMBLY WIZARD

Not sure where to start? Answer a few questions: where the panel will be installed, which big appliances you have, what the main breaker should be. The wizard assembles a minimal working panel that you then adjust by hand. Ready examples are included too: an apartment, a house with a garage and electric gates, a solar power station.

CALCULATIONS AND CHECKS

• Cable voltage drop and losses

• Short-circuit current on the busbars and a check of breaking capacity

• Selectivity of breakers and RCDs, with a hint on what to replace

• Heat dissipation and temperature rise inside the enclosure, with advice if the enclosure is too small

• Fault simulation: pick a line and see which devices trip and what loses power

SOLAR POWER STATIONS

Plan the DC and AC sides of a solar system in the same panel: panels, strings, inverter, battery, breakers and surge protection. The app checks the design and points to the weak spots:

• string open-circuit voltage at low temperature against the inverter's maximum input voltage

• string voltage in the heat against the lower limit of the MPPT window, where the inverter starts losing output

• short-circuit current of the array against the inverter's input limit

• breaker rating against the inverter's power and current

• swapped plus and minus on the cable to the inverter

WIRING

• Automatic wire routing inside the panel

• Wire harness view, shown spread out or assembled

• Voltage mode: switch devices on and off and watch what gets power

• Single-line diagram built from your panel

DOCUMENTS

• Specification and groups list, as PDF/print or CSV

• Drawings in DXF and Visio, pictures in PNG and SVG

• Labels for the panel, ready to print

• For US and Canada: a panel schedule

STANDARDS FOR YOUR REGION

On first launch the app picks the language, standard and supply voltage for your region. Russia and CIS (GOST, PUE), Europe and many other countries (IEC), US and Canada (NEC) — each with its own devices, wire colours and checks. You can change it at any time.

SHARED PROJECT

Several people can work on one panel. You get an 8-digit view code and a separate edit key. Every save is a new version; if a colleague saved before you, the app tells you instead of overwriting their work. Version history lets you roll back. Your name is entered once and used in all shared projects.

LINK FOR YOUR CUSTOMER

Send a link to an interactive diagram that cannot be edited. The customer can rotate the panel, look at the devices and see what each group is for. The diagram updates when you save a new version.

34 LANGUAGES

English, Russian, German, French, Spanish, Italian, Portuguese, Dutch, Polish, Czech, Slovak, Ukrainian, Bulgarian, Kazakh, Serbian, Romanian, Hungarian, Greek, Turkish, Arabic, Hebrew, Japanese, Chinese, Finnish, Swedish, Norwegian, Danish, Estonian, Lithuanian, Latvian, Uzbek, Persian, Thai and Mongolian.

WHO IT IS FOR

Electricians and installers, designers and estimators, panel builders, students, and anyone planning a panel for a home, workshop or solar system.

The internet is needed only for shared projects and customer links.

Note: the app helps with planning and does not replace the requirements of local regulations or a qualified electrician.