This ABB Thermal Overload Relay TA25DU is a reliable and efficient unit that provides thermal, overload, and overcurrent protection for your electrical equipment. With a maximum amperage of 4A and a current rating of 2.8-4.A, this unit is suitable for a wide range of applications. It has 3 phases AC/DC current type and comes with 3-pin connections. This unit is sold in a pack of 2-5 and has a power of 3 hp. It is ideal for use in various industries such as business and industrial settings. The protection properties of this unit include thermal protection, overload protection, and overcurrent protection. It is designed to detect and prevent any electrical faults or damages.