TF42-1.3 - Thermal overload relay 1SAZ721201R1025

Motor protection with ABB TF42-1.3 thermal overload relay

ABB TF42-1.3 thermal overload relay is a reliable and economical device designed to protect electrical circuits, and especially motors, against overload and phase failure. Its compact design and easy installation make it an ideal solution for both professional installers and end-users who care about the safety of their equipment. The device offers a quick response to irregularities, minimizing the risk of damage and downtime.

Functionality and application

The TF42-1.3 relay is designed for direct mounting, simplifying installation and saving time. It provides effective protection against overloads and voltage asymmetry, which can lead to overheating and motor damage. Thanks to the current setting range from 1 to 1.3 A, it is suitable for a wide range of industrial and commercial applications. It has a built-in reset button, allowing for quick restoration of operation after removing the cause of the trip. Automatic reset is an additional function that increases ease of use.

Key features and benefits

• Wide range of applications: ideal for protecting motors in various industrial and commercial applications.
• Fast response: provides instant protection against overloads and phase failures, minimizing the risk of damage.
• Simple installation: direct mounting simplifies installation and saves time.
• Built-in reset button: allows for quick restoration of operation after removing the cause of the trip.
• Automatic reset: ensures ease of use and minimizes the need for manual intervention.
• Trip class 10: provides precise and reliable protection of electrical circuits.
• Auxiliary contacts: equipped with 1 normally open (NO) and 1 normally closed (NC) contact, allowing for signaling the device status or remote disconnection of the circuit.
• Screw connection: ensures a secure and durable connection of electrical wires.

Technical parameters

The TF42-1.3 relay is characterized by a maximum operating voltage of 690 V and a current setting range from 1 to 1.3 A, making it a versatile solution for many applications. It also has auxiliary contacts – one normally open and one normally closed – which can be used to signal the device status or remote disconnection of the circuit. The device complies with applicable safety standards, ensuring reliable protection of the electrical installation. Trip class 10 guarantees a precise response to overloads, minimizing the risk of false alarms or delays in the operation of the protection.