AKH0.66100 * 80II Current Transformer is designed for measuring very high primary currents using a standard 5 A secondary. Primary current rating is 3000 A with a secondary of 5 A, giving a 600:1 ratio. Key benefits - Enables safe measurement of large primary currents with a conventional 5 A sensing input. - Compatible with protection relays, metering, and monitoring equipment that accept 5 A CT signals. - Simple integration into switchgear, motor control centers, and test benches that require accurate high-current sensing. - Reliable performance in demanding electrical environments due to its robust design and precise ratio. Important specifications - Model: AKH0.66100 * 80II Current Transformer - Primary current rating: 3000 A - Secondary current rating: 5 A - Ratio: 600:1 - Function: High-current measurement and protection signaling Use scenarios - Utility and industrial switchgear: monitor feeders carrying up to 3000 A and feed a 5 A sensing circuit for protective relays. - Electrical testing and calibration: generate known high primary currents and verify meter or relay accuracy via the 5 A secondary input. - Motor drive and distribution systems: track current for overload protection and performance monitoring without exposing 5 A sensing circuits to large currents. This description aligns with the original product specifications and maintains a clear, professional tone suitable for technical buyers.