There is also IEC 61131-3 – for ladder-logic symbols.The graphic symbols used for electrical components in circuit diagrams are covered by national and international standards, in particular: These symbols are largely standardized internationally today, but may vary from country to country, or engineering discipline, based on traditional conventions. Pictogram used to represent various electrical and electronic devices or functions Common circuit diagram symbols (US ANSI symbols)Īn electronic symbol is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, resistors, and transistors, in a schematic diagram of an electrical or electronic circuit.
