EWSK 31.5 40/5A 5VA Kl.0,5s

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Product information

The window-type current transformer EWSK 31.5 40/5 A 5 VA Kl. 0,5 is a compact, high-precision low-voltage measuring transformer from the proven EWSK series, specially developed for use in power distribution, switchgear, meter panels and industrial measuring and monitoring systems.

Technical main features:

Type Window-type current transformer (Window-Type) – EWSK 31.5
Transformation ratio 40/5 A (primary rated current 40 A, secondary rated current 5 A)
Rated power / burden 5 VA
Accuracy class Kl. 0,5 (according to IEC/EN 61869-2 or DIN EN 61869-2, protection class)
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 60 mm × height 60 mm × depth 40 mm
Weight (approx.) 0,25–0,35 kg (depending on version)
Mounting Rail and wall mounting possible, including secondary terminals

The EWSK 31.5 40/5 A 5 VA Kl. 0,5 is characterised by its very compact design, high reliability and excellent linearity – ideal for applications where precise protection and measurement is required at moderate currents (e.g. distribution boards, relay systems, energy monitoring systems with protection function).

We are happy to supply this model from stock at short notice or configure further primary currents of the EWSK series for you (30 A to 300 A possible).

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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