Topmatic helps you select the convenient cross section for your installations. The App is considering the maximum voltage drop, using UNE 20460-5-523 Norm as a reference for current ratings. Available in English, French, Spanish, Dutch, Danish, German, Portuguese and Catalan, it is a useful tool for engineers, installers, dealers, students.
Calcule con Topmatic la sección más adecuada del cable eléctrico. Topmatic considera la caída máxima de tensión y utiliza la norma UNE 20460-5-523 como referencia para las intensidades admisibles, aplicando la normativa del REBT 2002.
Available in Spanish, Portuguese, Catalan, English, French, German, Danish and Dutch, it is a very useful tool for professionals in the electrical sector: distributors, installers, students, etc.