The ABB EF750-800 thermal overload relay is a heavy-duty motor protection device built to safeguard large industrial motors against overload, phase failure, and current imbalance. With an adjustable current range of 250 to 800 A, it is designed for seamless integration with ABB AF580 to AF750 contactors. This relay provides reliable and precise protection, ensuring motor longevity and operational safety in demanding industrial environments.
Adjustable current range: 250 – 800 A
Trip class 10A: Fast and accurate tripping to protect motors from overload damage
Phase failure detection: Protects against motor damage due to single-phasing and voltage imbalances
Manual and automatic reset options: Allows flexibility in operation and control
Integrated test and stop buttons: Facilitate easy testing and manual interruption
Direct mounting compatibility: Designed to fit ABB AF580 to AF750 contactors for streamlined installation
Temperature compensation: Maintains consistent tripping performance across different ambient temperatures
IP20 finger-safe terminals: Ensures safe handling during installation and maintenance
Visual trip indicator: Enables quick detection of faults and status monitoring
Robust industrial design: Durable and compact for harsh industrial environments and efficient panel space usage