ABB TF42-7.6 Three-Phase Thermal Overload Relay

ABB TF42-7.6 Three-Phase Thermal Overload Relay is an economical electromechanical protection device for the main circuit. This three-pole relay, part of ABB’s TF42 family, is designed for mounting with ABB AF09–AF38 contactors and supports three- and single-phase applications. The TF42-7.6 variant covers a continuous current range of 5.70 to 7.60 A, suitable for motors operating within that full-load current band. It uses a bimetal trip element to sense overheating and trip the main circuit when overload conditions occur, protecting windings and conductors from damage. The 1SAZ721201R1040 part number identifies this unit within ABB’s TF42 lineup. TF42 overload relays are intended for motor protection in main-circuit applications and are designed to mount on AF-series contactors, enabling straightforward protection in standard ABB motor control schemes.