Southwire® Voltage Drop Calc vs Electrical Diagram Maker

Southwire's voltage drop calculator will help you determine the proper wire size for an electrical circuit based on the voltage drop and current carrying capacity of an electrical circuit. Determines wire size to meet specific voltage drop limits or calculates voltage drop for a specific conductor run. When sizing conductors, calculations limits wire size to voltage drop and NEC ampacity. Southwire's Voltage Drop Calculator is designed for applications using AWG and KCMIL sizes only.

Electrical Diagram Maker is a practical tool for creating electrical schematics, automotive wiring diagrams, control circuits, installation drawings, and technical documentation on iPhone, iPad, and Mac. Create professional diagrams using ready-to-use symbols, clean 90-degree wiring, customizable wire colors, editable labels, wire size markings, project title blocks, and PDF export. Designed for electricians, automotive technicians, panel builders, engineers, students, installers, and anyone who needs to create or document electrical systems quickly. KEY FEATURES - Create electrical schematics and automotive wiring diagrams - Start electrical or automotive projects with dedicated symbols and templates - Add symbols for power, control, PLC, terminals, motors, lighting, sockets, appliances, circuit breakers, RCD/FID devices, cabinets, junction boxes, solar systems, and more - Use automotive batteries, fuses, relays, switches, sensors, actuators, ECUs, grounds, and multi-pin connectors - Add male and female automotive connectors with 2, 4, 6, 8, 12, 16, or 20 pins - Draw clean 90-degree wire connections with editable routing points - Move individual wiring points to adjust the wire path - Display wire crossings that are not electrically connected - Customize wire colors for easier circuit identification - Show wire sizes directly on the diagram using AWG and mm² labels - Add and edit custom text labels - Resize, rotate, duplicate, and delete symbols - Create multiple portrait or landscape pages - Rename and organize project sheets - Use light and professional dark-blue themes - Add title block details including project name, author, date, file, sheet, page, customer, and drawing title - Share editable project files between Mac, iPad, and iPhone - Import received project files and continue editing them - Export professional PDF drawings with a Pro subscription - Access a built-in user manual from Settings Electrical Diagram Maker helps you create organized technical documentation without complicated CAD software. Start with a blank page or template, place symbols, connect components, add labels, and prepare a clean drawing for installation, diagnostics, planning, study, or customer documentation. PRO SUBSCRIPTION Electrical Diagram Maker Pro unlocks professional PDF export and project information editing. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/