ESK 31.3 is a measuring current transformer of the 4000 Series that allows you to measure the primary current in the system (from 50 to 400A) and bring it to a value of 5A or 1A suitable to be read by measuring instruments such as digital and analog indicators and ESAM transducers (ex. ID3004-TA, MI96C, MT-Ca, MT-C, MT-PA1 etc.). The ESK 31.3 transformer is the ideal solution for your system and guarantees an accuracy class of 1% or 0,5%, a FS5 safety factor and an insulation class E. The test voltage is 3kV for 1 ‘ and is built according to EN 60044 / 1-2, IEC 61869/1 + 2.

Cable or bus bar current transformer

  • Accuracy: 1% o 0,5%
  • Cable dimension: 26 mm
  • Bus bar dimension: 30 x 10 mm
  • Range: 50 … 400A

Data Sheet

User Manual



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