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IE3 Motor Starter and Contactor FAQ
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This document addresses frequently asked questions about technical changes needed for Manual Motor Starters (MMS) and contactors to handle IE3 premium efficiency motors, including increased magnetic tripping levels and AF contactor technology. It also covers precautions for replacing IE2 motors with IE3, overload device adjustments, and the use of ABB's SOC selection tool for proper motor starter coordination.
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