The ABB TF140DU-135 thermal overload relay is a robust and high-capacity protection solution for large industrial motors. With an adjustable current range of 100 to 135 A, it is specially designed for direct mounting on ABB AF116 to AF140 contactors. This relay offers dependable protection against overload, phase failure, and unbalanced currents, ensuring reliable motor operation and extended equipment life in demanding industrial environments.
Adjustable current range: 100 – 135 A
Trip class 10A: Fast-acting and accurate overload protection
Phase failure protection: Shields motors from damage caused by single-phasing
Manual and automatic reset modes: Flexible operation for various control systems
Built-in test and stop functions: Enable routine maintenance and easy testing
Direct mounting on AF116 to AF140 contactors: Streamlines installation and wiring
Ambient temperature compensation: Maintains accuracy despite environmental temperature variations
IP20-rated finger-safe terminals: Enhances safety during installation and servicing
Trip indicator window: Allows quick visual fault detection
Industrial-grade, compact design: Built for durability and space efficiency in control panels