classic control sim

Draw the circuit, wire it, and run a live simulation on your phone — no equipment, no electrical risk.

⚡ A real parts library
Contactors, thermal overload relays, MCBs with B/C/D curves, MCCBs, RCCB and RCBO, surge protection (SPD), push buttons, selector switches, indicator lamps, on-delay / off-delay / flasher timers, auxiliary relays, phase monitor, busbars and comb busbar, terminals, 24 V power supply, meters, a generator, and single- and three-phase motors.

🔌 Circuits you actually learn
Direct-on-line (DOL) · motor reversing · star-delta, manual and automatic · timer control · control from several places · alarm and protection circuits · automatic transfer between mains and generator · level, pressure and temperature control.

🧠 PLC and variable speed drive
A LOGO!-style ladder (PLC) editor with timers, counters, markers and a DM8 expansion module, plus a VFD with frequency, ramp and protection settings — both running inside the simulation itself, not as a picture.

🔬 Simulation that shows the truth
Phase and current flow the moment you start · voltage drop, and why it affects a motor differently from a lamp · thermal protection that trips on overload · short-circuit detection isolated at the nearest breaker · coil voltage mismatch warnings · realistic load currents.

🎓 Learn and share
Structured lessons and ready examples that open in one tap · a community where you publish your circuits, browse others, and vote · multi-sheet projects saved and synced across your devices · export diagrams as images, files and PDF.

🤖 AI link
Connect the simulator to an AI app so it can build, wire, run and test a circuit inside your workspace — from a photo of a diagram or a description you type. Everything it does can be undone.

🌍 Nine languages
Arabic · English · Portuguese · Hindi · Turkish · German · Chinese · Korean · Indonesian.

👷 Who is it for?
Electrical engineering and trade-school students, maintenance and installation technicians, instructors, and anyone who wants to understand control logic safely before touching a real panel.

🆓 Free to start
Try the simulator right away with a limited number of parts, no payment. A subscription opens the full library, the lessons and community circuits, and syncs your projects across devices.

Works on phone and in the browser — same projects in both.