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Protection Class Current Transformers (CTs) are engineered for reliable performance in fault detection and system protection applications. Unlike standard metering CTs, these units maintain high accuracy under extreme fault currents, ensuring that protective relays receive precise signals when it matters most.
Our range covers multiple primary current ratings (100A to 3200A), secondary outputs (1A & 5A), and protection classes such as 5P5, 5P10, 5P15, and 5P20, with various burden (VA) capacities to match your relay and circuit requirements.
These CTs are widely used with overcurrent relays, earth fault relays, and restricted earth fault (REF) relays in transformers, switchgear, industrial feeders, and substation protection schemes. Built for durability and compliance with international standards, they offer consistent accuracy, even during high fault conditions, reducing the risk of relay maloperation.
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