TF42-10 Thermal overload relay 1SAZ721201R1043

Motor and Circuit Protection – Thermal Relay TF42-10

The TF42-10 thermal relay is a reliable device used to protect electric motors from overload and phase failure. Designed to work with AF09, AF12, AF16, AF26, AF30 and AF38 series contactors, it provides comprehensive protection in industrial and commercial applications. Its compact design and easy installation make it an ideal solution for both installers and end-users.

Construction and Functionality

The TF42-10 relay features a current setting range of 7.6 to 10A, allowing for precise adjustment to the protected installation. It has a built-in reset button, enabling quick restoration of operation after a shutdown caused by an overload. Automatic reset simplifies operation, and the ability to manually reset increases control over the system. Equipped with one normally open (NO) auxiliary contact and one normally closed (NC) contact, it allows for signaling the device status and remote circuit disconnection. Class 10 release ensures a quick response to overloads, minimizing the risk of damage to protected equipment.

Application and Compatibility

The TF42-10 relay finds application in a wide range of applications, from simple home installations to advanced industrial systems. It is particularly recommended for protecting electric motors used in pumps, fans, conveyors and other equipment exposed to overloads. The possibility of direct mounting on contactor blocks or separate mounting using additional accessories provides installation flexibility. It meets IEC/EN 60947-1 standards, guaranteeing safety and reliability. Thanks to the rated voltage of up to 690V, it is compatible with most standard electrical installations.