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derating curve

1. The total current capacity of the Toughcon circular connectors depends on the maximum permissible operating temperature. The existing temperature in the circular connector is influenced by the

  • number of contacts (the amperage per contact is generally reduced with increasing number of contacts)
  • wire cross section (larger cross sections conduct more current and produce less heat) 
  • ambient temperature (the current capacity decreases with increasing temperature).

It must be therefore noted that the total current capacity does not cause

the permissible operating temperature to be exceeded. The following diagrames (conductor cross section 2.5 mm ²) serve as a reference point:

drating-curve (klick to enlarge)