The following overview shows the effects of incorrect assignment of the nominal wire cross-section to the crimp contact.

Assignment OK
Optimum crimping of the individual strands = optimum mechanical and electrical properties of the crimp connection!

Nominal cross section too small

Insufficient filling of the cross-section. This results in cavities in the wire crimp.

Improper crimp! As a result, the crimp connection has poorer mechanical and electrical properties.

Important: Reducing the wire crimp height would increase the compression ratio, but this would cause the tips of the crimp flanks to dip into the crimp barrel wall or crimp base and damage the crimp contact.

Nennquerschnitt zu groß

Wire crimp is overfilled and the tips of the crimp flanks do not support each other.

Despite optimum compression, this wire crimp will continue to open due to mechanical stress and temperature changes during use and will fail more or less quickly depending on the application of the crimp connection.

Important: A reduction of the wire crimp height would lead to an over-pressed crimp instead of better support of the crimp flanks!