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SPAJ 110 C Earth-Fault Relay Product Guide

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This product guide describes the ABB SPAJ 110 C earth-fault relay, designed for selective primary or back-up earth-fault protection in solidly earthed or low-resistance earthed power systems. It features low-set and high-set neutral overcurrent stages with definite or inverse time characteristics, configurable output relays, serial interface for substation integration, and continuous self-supervision.

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