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Product information

The EWSKD 31.8 3x50/1A 10VA Kl.0,5 is a compact, high-precision low-voltage measuring current 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 window-type current transformer (Window-Type) – EWSKD 31.8
  • Transformation ratio 50/1 A (3-fold for three-phase applications, primary rated current 50 A, secondary rated current 1 A)
  • Rated power / burden 10 VA
  • Accuracy class Kl. 0,5 (according to IEC/EN 61869-2 or DIN EN 61869-2)
  • Primary conductor bore For round conductors up to max. Ø 31 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.) Width 52 mm × height 52 mm × depth 35 mm
  • Weight (approx.) 0,25 kg (depending on version)
  • Mounting Rail mounting DIN EN 50022 possible

The EWSKD 31.8 3x50/1A 10VA Kl.0,5 is characterised by its very compact design, high reliability and excellent linearity – ideal for applications where precise measurement in three-phase systems is required at medium currents (e.g. distribution boards, measuring stations, energy monitoring systems with higher 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 quote!


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: 0,5
apparent power (VA): 10
primary current: 3x50
secondary current: 1