Reference guide

Electrical drawing symbols

The standard symbols electricians use on plans and schematics, drawn the same way they appear in the free MarkUp editor. Learn what each one means, then place it on your drawing with one tap.

Socket

Socket outlet where portable appliances and tools are plugged in.

Switch

Single-pole switch that opens or closes a lighting or power circuit.

Lamp

Lamp or light point, drawn as a circle with a cross (luminaire).

Ground

Protective earth (ground) connection to the earthing system.

Resistor

Fixed resistor that limits the current flowing in a circuit.

Capacitor

Capacitor that stores charge between two conductive plates.

Battery

Battery or cell supplying direct current (DC) to the circuit.

Fuse

Fuse that protects a circuit by melting when current is too high.

Diode

Diode that lets current flow in one direction only.

Motor

Electric motor that converts electrical current into rotation.

Junction box

Junction box where cable runs are connected and split.

Breaker

Circuit breaker that trips to protect a circuit from overload.

Use these symbols on your drawings

Every symbol on this page is built into the MarkUp editor. Take a photo of a paper plan or upload a PDF, tap the Symbols tool and place any of them on your drawing — no account needed.

Open the free editor