1SAX311001R1101

ABB 1SAX311001R1101 E80DU-80 Electronic Overload Relay is a self-supplied electronic motor-protection relay designed to provide reliable protection for three-phase motors against overload and phase-failure conditions. It features a broad adjustable setting range of 27 A to 80 A, allowing one relay to cover multiple motor current ratings while maintaining accurate electronic protection. A major feature of the E80DU-80 is its selectable Trip Class 10E, 20E or 30E, making it adaptable to motors with different starting durations and load characteristics. The relay is self-supplied, meaning no separate external control supply is required for its basic protection function. ABB rates the unit at 80 A operational current, 1000 V insulation voltage, and up to 1000 V AC main-circuit operational voltage. ABB documentation lists 250 A short-circuit protection for the E80DU-80.