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 — Open an editable direct-on-line motor starter template with start/stop control, contactor seal-in, overload protection, and a running indicator. Open in editor.
• Star-Delta Motor Starter template — Edit a star-delta starter template with main, star, and delta contactors, timed changeover, overload protection, and interlocking. Open in editor.
• Forward-Reverse Motor Control template — Start with an editable reversing motor circuit containing forward and reverse contactors, seal-in contacts, overload protection, and interlocks. Open in editor.
• Lighting Panel Circuit template — Edit a multi-circuit lighting panel template with incoming supply, branch protection, switches, luminaires, neutral, and protective conductors. Open in editor.
• 3-Way Switch Circuit template — Open an editable two-location lighting-control template showing line, two traveller conductors, common terminals, the luminaire, neutral, and grounding intent. Open in editor.
• LED with Resistor template — Edit a basic LED circuit with a DC source, current-limiting resistor, polarized LED, and return path. Open in editor.
• Arduino LED Blink template — Open an editable Arduino LED circuit with a digital output, current-limiting resistor, external LED, and ground connection. Open in editor.
• Voltage Divider template — Edit and simulate a two-resistor voltage divider with an input source, midpoint output, and return reference. Open in editor.
• H-Bridge Motor Driver template — Open an editable conceptual H-bridge showing four switching devices, a DC motor, direction control, supply, and return paths. Open in editor.
• PLC Input/Output Wiring template — Edit a PLC I/O wiring template with a 24 VDC supply, field pushbuttons, digital inputs, digital outputs, and pilot lights. Open in editor.

Need a finished drawing instead? Browse thousands of ready-made wiring diagrams.