TF42-1.0 Thermal overload relay 1SAZ721201R1023

Reliable motor protection – Thermal overload relay TF42-1.0

Thermal overload relay TF42-1.0 is an economical and reliable device for protecting electrical circuits of motors. It provides effective protection against overload and short circuit, minimizing the risk of damage and downtime. It is an ideal solution for both professional installers and end-users looking for solid protection for their equipment. The device is characterized by a fast response to irregularities and the ability to easily configure the current setting range.

Functionality and application

The TF42-1.0 relay is designed to work with AF09 - AF38 contactors. Its main task is to monitor the current flowing through the motor circuit and disconnect the power supply if the permissible value is exceeded. Thanks to this, even short-term overloads do not lead to serious failures. The device has a release class of 10, which means it reacts quickly to sudden current increases, providing optimal protection. In addition, a built-in reset button allows for quick restoration of operation after removing the cause of the trip.

Characteristic features and benefits

• Wide current setting range (0.74…1 A): allows you to match the relay to different types of motors and applications.
• Automatic reset: provides convenient use and minimizes downtime after tripping.
• Built-in normally open (NO) and normally closed (NC) auxiliary contact: enables integration with control systems and alarm signaling.
• Direct mounting: simplifies installation and saves space in the control cabinet.
• Compliance with IEC/EN 60947-1 standards: guarantees safety and reliability of operation.
• Compact dimensions: 45 mm width, 88.3 mm height and 70.5 mm depth allow for easy integration into existing installations.
• Manual reset option: gives control over restoring the device to operation after tripping.
• Temperature compensation: ensures stable operation in various environmental conditions.
• Resistance to shock and vibration: ensures reliable operation even in harsh industrial conditions (11 ms Pulse 25g and 5g / 3 ... 150 Hz).
• Rated operating voltage up to 690 V: enables use in a wide range of electrical installations.
• Screw connection of main contacts: ensures a secure and durable connection of wires with a cross-section of 0.75 to 4 mm².

The TF42-1.0 relay is an investment in the safety and reliability of motor operation, which translates into reduced costs associated with repairs and downtime.