The ABB ELECTRIC TF42-24 is an economic electromechanical thermal overload relay designed for reliable and fast protection of motors against overload and phase failure. It features temperature compensation, selectable automatic or manual reset, a trip-free mechanism, and a clear trip indication. This relay connects directly to block contactors for efficient integration..The ABB ELECTRIC TF42-24 is a thermal overload relay with trip class 10, offering protection for the main circuit. It includes features such as temperature compensation, a normally closed (NC) trip contact, a normally open (NO) signal contact, and a trip-free mechanism. The device supports both automatic and manual reset modes and is designed for direct connection to block contactors. Single mounting kits are available as accessories.