ASK 31.3 250/5A 2,5VA Kl.0,5 - Plug-on current transformer

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Product information

The plug-on current transformer ASK 31.3 250/5A 2,5VA Kl.0,5 is a compact, high-precision low-voltage measuring transformer of the proven ASK series, specially developed for use in power distribution, switchgear, meter panels and industrial measurement and monitoring systems.

Technical main features:

Type plug-on current transformer (Clip-on Type) – ASK 31.3
transformation ratio 250/5 A (primary rated current 250 A, secondary rated current 5 A)
Rated power / burden 2,5 VA
accuracy class accuracy class 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 strength Icth = 1,0 × Ipr (continuous current 1 × primary rated current)
Thermal rated short-time current strength Ith = 60 × Ipr, 1 s
Insulation class E
Insulation test voltage 3 kV, 50 Hz, 1 min
Dimensions (approx.) Width 50 mm × height 80 mm × depth 35 mm
Weight (approx.) 0,25–0,30 kg (depending on version)
mounting Plug-on mounting, incl. quick-release fastener and insulating protective cap

The ASK 31.3 250/5A 2,5VA Kl.0,5 is characterised by its simple plug-on capability, high reliability and excellent linearity – ideal for applications where precise measurement without dismantling the conductor is required at medium currents (e.g. existing systems, retrofit projects, energy monitoring systems).

We will be happy to supply this model from stock at short notice or configure further primary currents of the ASK 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

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