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.