What Happens When The Rated Carry Current Is Exceeded At The Switching Section (Contact Section)?

Modified on Sun, 11 May, 2025 at 10:22 PM

The symptoms depend on whether the contacts have power supplied to them only or they are switched as well.
  • Power Supply Only
    Generated heat may cause deterioration of the contacts and/or conductor insulation, and reduce the springiness (reset force) of the contact springs.
  • Switching
    Contact transfer, welded contacts, OFF faults, abnormal consumption, and increase of contact resistance may occur.  

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