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ABB OVR T1-T2 Surge Protective Device Installation Instructions

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This document provides multilingual installation, safety, and technical specifications for the ABB OVR T1-T2 series surge protective devices (SPDs), including models such as the 1N 50-255 P TS and 1L 25-255 C. It covers mounting on DIN rails, conductor connections, grounding requirements, remote contact signaling, and compliance with IEC 61643-11 and UL 1449 standards.

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