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Questions

  • No : 23280
  • Release Date : 2018/09/12 15:11
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About Low-voltage Power Distribution Products

Is it possible to protect SSC with only MCCB ,although it says that afast-acting type fuse should be used for short-circuit protection?
Category : 

Answer

The short-circuit withstand capacity of the semiconductor in US-N/K/Htype solid state contactor is specified and the flowing current at short-circuit must not exceed the withstand capacity for protecting againstshort-circuit. In order to meet the condition, it is neccessary to combinewith specified protection fuse. Therefore, MCCB can not protect againstshot-circuit since the passing energy exceeds the withstand capacity of thesemiconductor element.
Product Name
Motor Starters
Series
MS-T/N
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