SLD | Electrical diagrams

SLD | Electrical diagrams is a practical tool for creating professional electrical installation diagrams on your Android device. With a straightforward drag-and-drop interface, users can quickly place symbols onto a canvas and build single-line schematics that meet industry standards. The app supports both IEC and ANSI symbol sets, making it suitable for a wide range of engineering and maintenance tasks.

Comprehensive Symbol Library

The application includes a vast collection of electrical symbols ranging from common components like circuit breakers, switches, and sockets to specialized items such as thermal relays, photovoltaic panels, and star-delta transformers. Each symbol complies with international standards, so users can confidently design diagrams that are accurate and recognizable. Additional annotation tools allow you to add text labels for voltage, current, power, and other measurements directly onto the schematic.

Basic vs Pro Version

The free Basic version lets you create one diagram and share it as an image, PDF, or file, but it includes advertisements and does not save your work. For users who need to manage multiple projects, the Pro upgrade (available via in-app purchase) unlocks the ability to open, edit, and save unlimited schemes. The Pro version also removes ads and provides extra example diagrams to help you get started faster.

Real-World Usability

Many professionals find this app useful for drafting electrical installations in commercial or residential settings. The drag-and-drop workflow reduces the time spent on repetitive drawing tasks, while the comprehensive symbol library eliminates the need to search for external references. You can export your finished diagrams for printing or sharing, and the local storage keeps your projects private until you choose to export them.

Common Questions

The Pro upgrade is valuable if you regularly work with multiple schematics or need to revise designs over time. Diagrams are stored locally on the device, so transferring them to another device requires manual export. The symbol set strictly follows IEC and ANSI standards, and instructional videos are available within the app to explain various functions. Overall, this app delivers a focused and efficient way to create electrical diagrams without unnecessary complexity.