Key Parameters
Category Description / Value
Product Line Eaton ETR (Electronic Thermal Relay)
Series ETR4
Rated Operational Current (Iₑ) Setting Range 55 - 70 A (Continuously adjustable within this range)
Rated Operational Voltage for Main Circuit Up to 690 V AC, 50/60 Hz
Power Supply for Electronics AC, sourced from the main current path (Self-powered)
Tripping Class Class 10 (Standard tripping characteristic for general motor starting)
Protection Functions • Thermal Overload Protection (based on I²t characteristic)
• Phase Failure / Unbalance Protection
• Jam / Stall Protection (short-time pickup setting)
Ambient Compensation Yes (Provides stable performance across a range of ambient temperatures)
Standards Compliance IEC/EN 60947-4-1, UL 508, CSA C22.2 No. 14
Mounting Snap-on mounting onto compatible Eaton contactors (e.g., DILB, DILM series).
Auxiliary Contacts • 1 Normally Closed (NC - 95-96): Trip contact, used to break the control circuit.
• 1 Normally Open (NO - 97-98): Alarm contact, can be used for signaling.
Test & Reset TEST button to simulate a fault, and STOP/RESET button.
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