3WA9111-0AA31 SIEMENS

The 3WA9111-0AA31 is an external metering current sensor designed as an accessory for 3WA series circuit breakers, specifically tailored for monitoring the neutral (N) conductor. This sensor is compatible with frame size 1 circuit breakers within the 3WA range. It facilitates precise current measurement in the neutral conductor, providing valuable data for power monitoring and analysis. The sensor is engineered for bus bar connection, ensuring a secure and reliable electrical connection. The package includes a copper bar, simplifying the installation process and ensuring optimal conductivity. By accurately measuring the neutral current, this sensor aids in detecting imbalances and potential faults within the electrical system. This capability is crucial for maintaining system stability and preventing equipment damage. The 3WA9111-0AA31 enhances the functionality of the circuit breaker, enabling comprehensive power management and protection. Its robust design and precise measurement capabilities make it an essential component for advanced electrical systems.