Current Transformers

ECT-20/B Current Transformer

ECT-20/B Current Transformer
Current Transformers

ECT-20/B Current Transformer

ECT-20/B current transformer for 125–250A primary current, accuracy classes 0.2 to 1, round conductor window. Ideal for compact metering and protection panels. The ECT-20/B is a compact current transformer built for primary currents from 125 A to 250 A, with a 20 mm round-conductor window and a 43 mm outer width — making it well suited to space-constrained panels and small switchboards. It's available in accuracy classes 0.2, 0.5/0.5s, and 1, with burden ratings from 1 VA up to 5 VA depending on the class and current level, giving panel builders a single footprint that covers both precision metering and general protection duties. Both 5 A and 1 A secondary current options are supported across all classes.

Technical Specifications

Operational

Measuring frequency50 Hz
Nominal thermal short-time current>60 In
LocationIndoor Installation
Operating Temp.Up to 55 °C
Measuring voltage3 kV 1 min
Max. allowed operating voltage0.72 kV

Electrical

Primary current125~250 A
Burden1~5 VA
Accuracy1-0.5-0.5s-0.2-0.2s Class

Supporting documents

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