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TF140DU Thermal Overload Relay Operating Instructions

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This document provides operating instructions for the TF140DU thermal overload relay, designed for use in potentially explosive atmospheres (gas, vapor, mist, and combustible dust). It includes safety warnings, applicable standards (IEC/EN 60079 series, EN 50495), and certification details (ATEX, IECEx) for installation and maintenance in hazardous areas.

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