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Product information

The ring core current transformer EWSKD 31.8 3x75/5A 5VA Kl.0,2 is a compact, high-precision low-voltage measuring transformer of the proven EWSKD series, specially developed for use in power distribution, switchgear, meter panels and industrial measurement and monitoring systems.

Technical main features:
  • Type ring core current transformer (Window-Type) – EWSKD 31.8
  • Transformation ratio 3 x 75/5 A (primary rated current 75 A, secondary rated current 5 A per phase)
  • Rated power / burden 5 VA
  • Accuracy class Kl. 0,2 (according to IEC/EN 61869-2 or DIN EN 61869-2)
  • Primary conductor bore For round conductors up to max. Ø 28 mm (window bore)
  • Maximum operating voltage Um ≤ 0,72 kV
  • Rated frequency 50–60 Hz
  • Thermal rated continuous current Icth = 1,2 × Ipr (continuous current 1,2 × primary rated current)
  • Thermal rated short-time current Ith = 100 × Ipr, 1 s
  • Insulation class E
  • Insulation test voltage 3 kV, 50 Hz, 1 min
  • Dimensions (approx.) Ø 80 mm × height 45 mm
  • Weight (approx.) 0,55–0,65 kg (depending on version)
  • Mounting Screw fastening, incl. mounting plate

The EWSKD 31.8 3x75/5A 5VA Kl.0,2 is characterized by its very compact design, high reliability and excellent linearity – ideal for applications where highly precise measurement is required at medium currents (e.g. 3-phase distributors, measuring stations, energy monitoring systems with moderate power requirements).

We are happy to supply this model from stock at short notice or configure further primary currents of the EWSKD series for you.

Contact us for your individual offer!


3D models and more files to each product can be found in our download area downloadarea
Properties
Type-Name: EWSKD
Type number: 31.8
accuracy class: 0,2
apparent power (VA): 5
primary current: 3x75
secondary current: 5