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300AA00381A

Parameter Specification (Estimated) Notes Product Type Thermal Overload Relay For 3-phase AC motor protection Series Likely part of the Eaton DILER or Meme series Same series as 300AA00382A Adjustable Current Range e.g., 2.0 - 6.3 A Fine-tuned to match the protected motor's FLC Rated Insulation Voltage (Ui) 690 V / 750 V Rated Operational Voltage (Ue) 690 V AC Compatible Contactors Designed to match specific Trip Class Class 10 Standard trip characteristic (7-10 sec at 600% current) Ambient Temperature -20°C to +60°C Operation without derating Standards IEC/EN 60947-4-1, UL 508, CSA C22.2 Reset Mode Manual or Automatic Selectable Auxiliary Contacts Normally Closed (NC) + Normally Open (NO) For control circuit signaling (e.g., trip indication)

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The Eaton 300AA00381A is a thermal overload relay designed for providing reliable and adjustable protection for three-phase AC motors. It is a component used in combination with a compatible Eaton contactor to create a motor starter assembly. This relay safeguards motors against potential damage caused by overloads, phase failure, and extended starting periods. Its key feature is an adjustable current setting range, allowing it to be calibrated to the specific full-load current (FLC) of the motor it protects. It typically includes a trip indicator and options for manual or automatic reset.