TF42-0.41 Thermal overload relay 1SAZ721201R1014

Motor protection with thermal relay TF42-0.41

Thermal relay TF42-0.41 is a reliable device used to protect electric motors from overload. Its function is to monitor the current flowing through the motor and, if the permissible value is exceeded for a certain period of time, to disconnect the power supply, protecting it from damage. This is a key element ensuring continuity of operation and extending the life of connected devices.

Functionality and application

This relay is widely used in industrial installations, construction and anywhere where protection of electric motors is required. Thanks to its design and adjustment possibilities, it allows precise adaptation to the specific needs of a given system. This is particularly important in applications where motors operate under variable load conditions. The device is designed for direct mounting, which facilitates its integration with existing systems.

Characteristics and benefits

• Wide current setting range: Allows adaptation to motors with a power of 0.31 to 0.41 A, providing optimal protection for different types of loads.
• Class 10 tripping: Ensures a quick response to overloads, minimizing the risk of motor damage. Class 10 means that the relay trips within 2 to 10 seconds at a current 6 times higher than the rated current.
• Resettable (automatic and manual): Allows for quick restoration of operation after removing the cause of the overload. Automatic reset is particularly useful in applications requiring minimal downtime. Manual reset with a test function allows you to check the correct operation of the relay after a failure.
• Built-in auxiliary contacts (NO/NC): Allow signaling the device status or remote control of other system elements. The availability of one normally open (NO) and one normally closed (NC) contact increases the flexibility of application.
• Temperature compensation: Ensures stable operation in various temperature conditions, maintaining constant protection parameters.
• Phase failure detection: An additional function increasing the safety of motor operation – the absence of one phase causes the device to switch off.
• Rated operating voltage up to 690 V: Allows the use of the relay in a wide range of electrical installations with different rated voltages.
• Screw connection: Provides a solid and reliable connection of power and control wires.

The TF42-0.41 relay is a solid solution for professionals and users looking for reliable protection for their electric motors. Its compact size and easy installation make integration with existing systems simple and intuitive.