Free tool

Cable Designation Decoder

Decode harmonized cable designations per CENELEC HD 361. Parses each position and explains what it means.

What this tool checks

Checks

✓ Harmonization prefix: H (harmonized) or A (recognized national type)
✓ Voltage code per HD 361: 01, 03, 05, 07, 1
✓ Insulation material code (V, R, S, X, G, B, J, T, E, N, Q, Z)
✓ Optional sheath material code (same letter set)
✓ Optional special construction markers (H, H2, H6, D)
✓ Conductor type after the dash (U, R, K, F, H, D, E)
✓ Core configuration (J/O prefix, count, cross-section)
✓ Explains each segment in plain language

Does not check

✗ National designation systems (German NYM/NYY, British BS, French U-1000, etc.)
✗ Whether the specific combination is commercially available
✗ Current-carrying capacity or installation compliance
✗ Manufacturer-specific suffixes or color codes

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Related guides

Glossary

CENELEC HD 361 Cable Designation Explained: How to Read H07V-U

Understand the CENELEC HD 361 harmonized cable designation system. Decode each position in the cable code: voltage, insulation, sheath, conductor type, and cross-section. With worked examples for common cable types.

Comparison

H05VV-F vs H07RN-F: Which Cable for Your Application?

Compare the two most common harmonized flexible cable types: H05VV-F for domestic and light commercial use, and H07RN-F for industrial and outdoor applications. Covers construction, ratings, applications, and catalog data differences.