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5 Current-Carrying Capacity (Derating curve)
VDE 0627 DIN IEC 48B/560/CD specifies how connectors are identified. therefore dependent self-heating and the temperature the
environment where the connector employed.156
4. measurement technique is
used which measures the temperature measuring spot the
component (approximately the hottest point) and the temperature the
immediate vicinity the component with various currents.
Section 5. 4.1 amongst other technical details, stipulates that the rated
current stated A.195: Connector label
4.1 Determining the Rated Current
DIN IEC 512, Part specifies how determine the current-carrying
capacity (derating curve).
Extract from VDE 0627 (IEC 48B/560/CD)
Examples markings for rated current, rated voltages, rated impulse
voltage and pollution degree
Marking connector PSD with rated current rated voltage 500
V, rated impulse voltage and pollution degree3, for the use in
any system, preferably unearthed delta-earthed systems:
16 500 16A 500V 6kV 3
Fig.5. The current-carrying capacity determined the
upper temperature limit the materials, contacts, connecting parts and the
plastic.
.2
