Free electrical and automation simulators
Every simulator runs in the browser, for free, on the same engine: wire it, run it, measure it and find faults.
DOL Starter SimulatorFree DOL starter simulator. Wire QF1, KM1, F1, START and STOP yourself, watch the current flow, test the overload and find faults. Works on phones.Star-Delta Starter SimulatorFree star-delta starter simulator with KM1, KM2, KM3 and timer KT1. Watch the motor start in star at about one third of the DOL current, then change to delta.Motor Control SimulatorPractise motor control circuits online for free: DOL, star-delta, forward-reverse, two-speed, VFD, soft starter, pump control and single-phase motors in 2D and 3D.PLC Ladder Logic Simulator with tank level and pump controlFree online PLC ladder simulator: edit rungs, watch contacts and coils change live, and control a tank, pumps and valves with a 4–20 mA level transmitter and alarms.4–20 mA Loop Simulator and Calculator for instrumentationSimulate a 4–20 mA instrument loop: scaling, NE 43 fault currents, loop power budget, calibration points and Pt100 tables. Free for students and technicians.Electrical Fault-Finding Practice with a Virtual MultimeterPractise electrical troubleshooting online: hidden faults in motor circuits, a virtual multimeter with continuity buzzer and a voltage trace.3D Electrical Wiring Simulator for control panelsFree 3D electrical wiring simulator: contactors, overload relays and the motor in a 3D panel, with a realistic wiring view and live current flow.Engineering calculatorsCurrent, power, voltage drop, cable check, transformer, generator, 4–20 mA, pressure and Pt100 with formulas.