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ETR4-69-A

Category Parameter Specification / Typical Value Motor Protection Setting Current Range (Iᵣ) 0.63 - 1 A (This is the core protective range) Tripping Class 10A (Standard tripping time: < 10 sec at 7.2 x Iᵣ) Ambient Temperature Compensation Yes, for stable performance across a range of temperatures Electrical Characteristics Rated Operational Voltage (Uᵢ) Up to 690 V AC Utilisation Category AC-3: Squirrel cage motors Contacts Control Circuit Contacts 1 NO (97-98) - Fault Signal 1 NC (95-96) - Fault Signal Rated Thermal Current (Iᵗʰ) 9 A General Data Mounting Snap-on to compatible Eaton contactors (e.g., DILM series) Reset Mode Manual reset (Standard for safety after a trip) Status Indication Mechanical flag for trip indication Standards IEC/EN 60947-4-1, UL 508, CSA C22.2 No. 14

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The Eaton ETR4-69-A is a compact and reliable thermal overload relay designed to protect three-phase motors from damage caused by overloads and phase failures. It is typically mounted in conjunction with a contactor to form a starter combination. The relay utilizes a bimetallic strip mechanism that responds to heat generated by the motor current. If the current exceeds the set value for a prolonged period, the relay will trip, opening its auxiliary contacts to interrupt the control circuit and disconnect the motor. Its precise current setting range makes it ideal for protecting small, low-power motors in industrial automation and machinery.