ABB 1SAZ811201R1001 TF65 Thermal Overload Relay

ABB TF65-28 thermal overload relay (order code 1SAZ811201R1001) is an electromechanical motor-protection device in the TF65 family, designed for AF40–AF65 contactors to guard motors against overload in three-phase circuits. The unit provides an adjustable current-setting range of 22–28 A and a fixed trip class of 10, enabling precise alignment with the motor's full-load current and reliable protection against overheating. For compatibility, ABB and distributors list TF65-28 under the part number 1SAZ811201R1001 as suitable for AF40, AF52 and AF65 contactors, with data and catalogs showing the TF65-28 configuration across global markets. As part of ABB's TF65/TF96 family of economical main-circuit protection relays, the TF65-28 provides compact, reliable overload protection for standard low-voltage motor circuits.