- Function and purpose The 5A clamp-on current transformer is a current sensor used to measure electrical current in circuits without breaking the circuit. - Current ratio and meaning Current ratio 300/5 A means primary current up to 300 A is transformed to a 5 A secondary signal for measurement and monitoring equipment. - Accuracy and sensing performance It is designed to accurately sense the current in the circuit, providing reliable measurement for monitoring, metering, and protection applications. - Important parameter The 300/5 A current ratio is a key specification that determines how primary current maps to the secondary current and how it interfaces with standard instruments. - Installation and form factor Clamp-on design enables non invasive installation around a conductor, allowing quick setup without disconnecting power. - Compatibility and integration Provides a 5 A secondary current suitable for connection to standard meters, data loggers, protection relays, and other instruments that accept a 5 A input. - Construction and durability Built for typical electrical environments with a compact clamp-on form factor that supports reliable operation over time. - Performance and reliability Delivers stable and dependable current readings for ongoing monitoring and control in electrical systems. - Use scenario 1: Industrial energy monitoring Clamp around feeder conductors to monitor real time current, supporting energy management programs and demand response. - Use scenario 2: Electrical panel commissioning and testing Measure trunk and branch currents non invasively to verify load distribution without circuit interruption. - Use scenario 3: Power metering and protection systems Feed a standardized 5 A signal to meters and protective relays to enable accurate metering, alarming, and fault detection.