Cable

Cable helps you design safe low-voltage electrical systems for boats, RVs, campervans, and off-grid installations. Enter your electrical loads and Cable calculates the correct wire gauge, checks voltage drop, and recommends fuse sizes — so your wiring meets safety standards and runs efficiently. FEATURES • Wire sizing for 12V, 24V, and 48V systems • Voltage drop calculations with configurable limits • Fuse and circuit breaker recommendations • Battery bank sizing • Charger management • Component library with real products and affiliate links • Wiring diagram export (PDF and PNG) • Bill of materials export • Metric (mm²) and imperial (AWG) wire standards • Works offline

Version 1.9.0 – built for boats, vans and off-grid 12/24 V systems: • Daily energy balance: consumption, solar/alternator yield, autonomy in days • Starter battery kept separate from your house bank • Voltage drop per load, insulation 70/105 °C, engine-room derating • Bill of materials with main fuse, battery switch, busbars, shunt and tinned marine wire • JSON backup export and import • Privacy switch for usage statistics • Many fixes, incl. correct fuse ratings in the parts list