EWSKD 31.8 3x50/5A 10VA Kl.0,5s

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Product information

The EWSKD 31.8 3x50/5A 10VA Kl.0,5s is a compact, high-precision low-voltage window-type 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 3x 50/5 A (three independent secondary windings, primary rated current 50 A, secondary rated current 5 A)
Rated power / burden 10 VA
Accuracy class Kl. 0,5 s (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 = 1,0 × Ipr (continuous current 1 × 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 80 mm × height 80 mm × depth 45 mm
Weight (approx.) 0,6 kg (depending on version)
Mounting Screw mounting, wall or rail mounting possible

The [product name] is characterised by its robust design, high reliability and excellent precision in measurement and protection applications – ideal for applications where accurate monitoring in three-phase systems is required at medium currents (e.g. distribution transformers, control cabinets, 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

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