[email protected]

UNE 21123-1

6 Min Read
UNE 21123 standard refers to the design and cross-sectional area specifications for cables used by utilities on power distribution circuits with voltage ratings up to and including 600/1000V (0.6/1kV). UNE standards are released by AENOR (Asociación Española de Normalización y Certificación), the Spanish Association for Standardisation and Certification. As AENOR is a member of ISO, IEC, and CENELEC, many of its standards are harmonized with European and international conventions.
Technical Department
on04/01/2026

What is UNE 21123 Cable?

UNE 21123 standard refers to the design and cross-sectional area specifications for cables used by utilities on power distribution circuits with voltage ratings up to and including 600/1000V (0.6/1kV). UNE standards are released by AENOR (Asociación Española de Normalización y Certificación), the Spanish Association for Standardisation and Certification. As AENOR is a member of ISO, IEC, and CENELEC, many of its standards are harmonized with European and international conventions.
19 Min Read
DIN VDE 0250 German Standard Flexible Power Reeling Cable
Technical Department
on10/11/2025

What is DIN VDE 0250 Reeling Cables?

DIN VDE 0250 represents the globally recognized German standard for flexible electrical cables designed specifically for cranes, material handling equipment, and mobile machinery applications. As Germany remains the only country to have issued special design regulations for flexible electrical cables covering cranes and material handling equipment, this standard has achieved worldwide acceptance as the ultimate benchmark for tough rubber-sheathed flexible reeling cables.
11 Min Read
UNE 21123 Standard Cable
Technical Department
on10/11/2025

What is UNE 21123 Standard Cable?

UNE 21123 is a Spanish electrical cable standard developed by AENOR (Asociación Española de Normalización y Certificación), the Spanish Association for Standardisation and Certification. This standard specifies the design, construction, and cross-sectional area requirements for cables used in power distribution circuits with voltage ratings up to and including 600/1000V (0.6/1 kV).[1] As a member of ISO, IEC, and CENELEC, AENOR develops standards in conjunction with European and international conventions, ensuring that UNE 21123 cables meet both regional and global safety and performance requirements.[2] These cables are widely used in transmission, distribution, and power networks across industrial installations in Europe and beyond.