AAB RET521 Transformer Protection Terminal FAU Series It provides real-time status and

It provides real-time status and health information for each I/O point

Catalog Description: POWER MODULE +5

and system messages

INPUT 24VDC DUAL 24V TO SINGLE 24V

AAB RET521 Transformer Protection Terminal FAU Series It provides real-time status andDescription The AAB RET521 is a transformer protection terminal designed for fast, selective, and reliable protection of power transformers in utility and industrial networks. Specifications Application: Transformer differential and backup protection Rated Voltage: Supports common medium and highvoltage transformer applications Current Inputs: Multiple CT channels for differential and overcurrent functions Voltage Inputs: VT channels for voltagebased