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ABB OVR T2 Surge Protective Device Installation and Operating Instructions

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This document provides installation, safety, and operating instructions for the ABB OVR T2 series surge protective devices (SPDs), including models OVR T2 1N and OVR T2 3N with various voltage ratings (275V, 440V) and configurations (P, TS). It includes technical specifications, wiring diagrams, coordination guidelines, and multilingual safety warnings for qualified electricians.

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