Wiring Diagram Templates

10 free wiring diagram and electrical circuit templates — open any template in the free online editor, customise it, and export to PNG, SVG, or PDF. No signup needed to start.

• DOL Motor Starter template — Direct-on-line motor starter with overload protection, start/stop control, and running indicator.
• Star-Delta Motor Starter template — Reduced-voltage star-delta starter for 3-phase motors with timer-controlled changeover.
• Forward-Reverse Motor Control template — Reversing motor control with electrical and mechanical interlocking between forward and reverse contactors.
• Lighting Panel Circuit template — Residential lighting panel with breakers, switches, and light fixtures for multiple rooms.
• 3-Way Switch Circuit template — Standard 3-way switch wiring to control a light fixture from two locations, such as a hallway or stairway.
• LED with Resistor template — Basic LED circuit with current-limiting resistor. Great for learning Ohm's law and LED biasing.
• Arduino LED Blink template — Classic Arduino "Hello World" circuit: blink an LED on digital pin 12 with a current-limiting resistor.
• Voltage Divider template — Two-resistor voltage divider circuit. Useful for level shifting, sensor interfaces, and reference voltages.
• H-Bridge Motor Driver template — H-Bridge circuit for bidirectional DC motor control. Basis for L293D and L298N motor driver ICs.
• PLC Input/Output Wiring template — Basic PLC I/O wiring with push buttons on inputs and pilot lights on outputs. Foundation for PLC programming exercises.

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