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REA 10 Arc Fault Protection System Product Guide

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This document describes the REA arc fault protection system for air-insulated low and medium voltage switchgears, which detects electric arc light alone or with overcurrent to deliver trip commands in under 2.5 ms. It covers system components including REA 101 main modules and REA 103, 105, and 107 extension modules, along with sensor types, technical data, mounting, and ordering information.

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