Model and ratings - Model: 0.66/100 80II 690V lowvoltage current transformer - Primary rated current: 2000 A - Secondary rated current: 5 A - Rated voltage: 690 V - Application type: lowvoltage current transformation Key benefits and uses - Enables accurate current transformation for LV systems up to 690 V - Converts large primary currents to a safe 5 A secondary for metering and protection devices - Suitable for integrating with protection relays, meters, and other current measuring instruments that accept a 5 A input - Supports reliable monitoring and protection in electrical installations without altering the primary circuit Important attributes - Function: high-current to low-current transformation for monitoring and protection - Compatibility: designed to work with standard LV protection and metering equipment that accept 5 A CT inputs - Performance: rated to handle up to 2000 A on the primary side with a 5 A secondary output - Operating conditions: built for use in 690 V lowvoltage environments Practical applications - Power distribution panels: monitor and relay-trip the main feeder by providing a 5 A signal from a 2000 A primary - Industrial motor circuits: enable overload protection and energy monitoring for large motors with a safe, scaled current output - Plant-wide metering: feed accurate current data to energy meters and supervisory control systems in LV switchgear and distribution boards Notes - This product is intended for related electrical current transformation applications in 690 V lowvoltage systems - The specification details provided here reflect the stated model, primary and secondary currents, and voltage rating without modification or omission