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E 320 DU Overload Relay Installation Instructions

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This document provides multilingual installation, maintenance, and safety instructions for the ABB E 320 DU overload relay, compliant with EN/IEC 60947-4-1 and featuring single phasing sensitivity. It details technical specifications such as tripping current limits, ambient temperature range, mounting positions, and manual/automatic reset and test functions for three-phase motor protection.

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