AKH0.66K 75/1 A current transformer Overview The AKH0.66K is a compact 75/1 A current transformer designed for reliable current measurement in electrical systems up to 660 V AC. Its small footprint and Class 1 accuracy make it a suitable choice for metering, protection, and control applications. Key specifications - Type: 75/1 A current transformer - Primary current rating: 75 A - Secondary current: 1 A - Accuracy class: Class 1 - Rated voltage: 660 V AC - Dimensions: 30 x 20 (mm) - Compatibility: Designed to work with standard 1 A sensing devices such as meters and protection relays Why you need it - Accurate current measurement: Class 1 accuracy provides reliable current readings for monitoring and protection systems. - Compact and easy to install: The 30 x 20 mm form factor fits in tight control panels and switchgear enclosures. - Safe, barrier-free sensing: Delivers galvanically isolated current measurement suitable for electrical safety and system protection. - Versatile voltage rating: Suitable for use in systems with voltages up to 660 V AC, expanding its applicability in various installations. Performance highlights - Reliable measurement for energy metering and load monitoring - Ready to pair with standard 1 A secondary sensing inputs found in meters and relays - Robust enough for industrial environments while maintaining precise readings Applications and use scenarios - Electrical metering in distribution boards: Connect to an energy meter to accurately track current on a 75 A primary circuit, helping with load analysis and energy management. - Protection relay integration: Use with protection relays to monitor motor and circuit currents, enabling timely tripping and fault detection. - Industrial automation and control: Feed current data into PLCs or monitoring systems to supervise equipment operation, balance loads, and optimize performance. Notes - Primary current path should pass through the transformer core as intended for accurate measurement. - Ensure compatibility with devices that accept a 1 A secondary current and are suitable for up to 660 V AC systems. This description preserves the original product model AKH0.66K and its specifications while highlighting the practical benefits, compatibility, and real-world use cases.