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Product information

The ECTB 61.35 300/5A 2,5VA Kl.0,5s is a compact, high-precision low-voltage measuring transformer from the proven ECTB series, specifically developed for use in power distribution, switchgear, meter panels and industrial measurement and monitoring systems.

Key technical features:
  • Type current transformer with conductor feed-through – ECTB 61.35
  • Transformation ratio 300/5 A (primary rated current 300 A, secondary rated current 5 A)
  • Rated power / burden 2,5 VA
  • Accuracy class Kl. 0,5 s (according to IEC/EN 61869-2 or DIN EN 61869-2)
  • Primary conductor feed-through For round conductor up to max. Ø 35 mm or busbar up to 61 × 10 mm
  • 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 70 mm × height 80 mm × depth 45 mm
  • Weight (approx.) 0,3–0,4 kg (depending on version)
  • Mounting DIN rail mounting, including insulating protective cap

The ECTB 61.35 300/5A 2,5VA Kl.0,5s is characterised by its very compact design, high reliability and excellent linearity – ideal for applications where precise protection and measurement is required at medium to higher currents (e.g. switchgear, distribution boards, 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 ECTB 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: ECTB
Type number: 61.35
accuracy class: 0,5s
apparent power (VA): 2,5
primary current: 300
secondary current: 5