ABB Replacement TF65-47 Thermal Overload Relay

TF65-47 Thermal Overload Relay from ABB Control (model TF65-47, part number 1SAZ811201R1004) is a three-pole overload protection device in ABB’s TF65 family, designed to protect motors in AC control circuits. It provides thermal protection with a Class 10 trip characteristic and covers a full-load current range of 36–47 A for 50/60 Hz systems, making it suitable for motors in the 36–47 A window. The relay is intended for use with ABB contactors as the main circuit protective element in motor starters and includes an auxiliary contact block offering 1 NC and 1 NO contact (1 Form A/1 Form B) for signaling or interlocking. Its physical footprint suits panel mounting and it is DIN-rail mountable with threaded terminals, measuring roughly 101.4 mm high, 54.9 mm wide, and 106.9 mm deep. The enclosure is rated for industrial environments with IP10/IP20 protection levels and an operating temperature range from -25 to 60 C, ensuring reliable operation in a variety of environments. The TF65-47 is a component of ABB’s TF65 series, providing straightforward, economical motor protection for three-phase systems at standard supply frequencies.