AAB RET521 Transformer Protection Terminal FAU Series and system messages

and system messages

offering flexibility in usage

INPUT 24VDC DUAL 24V TO SINGLE 24V

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AAB RET521 Transformer Protection Terminal FAU Series and system messagesDescription 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