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ELR48P and ELR48V24P Electronic Residual Current Relay Manual

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This document provides technical specifications, wiring diagrams, and configuration instructions for the ABB ELR48P and ELR48V24P front-panel electronic residual current relays, compliant with IEC/EN 60947-2 Annex M. It details adjustable sensitivity (IΔn), delay time settings, minidip switch programming for fail-safe and autoreset modes, and connection terminals for auxiliary power and toroidal transformers.

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