The TF42-4.2 thermal overload relay is an economic electromechanical protection device for the main circuit, offering reliable protection for motors in the event of overload or phase failure.
The TF42-4.2 thermal overload relay is a 3-pole electromechanical protection device with trip class 10, designed for direct mounting onto AF series block contactors. It features integrated temperature compensation, a test function, a STOP button, and a trip indicator. The relay allows for selectable automatic or manual reset modes. With an adjustable current range of 3.1 to 4.2 A, it provides accurate safeguarding for motors against thermal overloads and phase failures in industrial applications.
Specifications
Application
Motor protection against overload and phase failure
Temperature
-25 ... +60 °C
Working Voltage
AC
Poles
3
Operational Voltage (V)
690
Operational Current (A)
4.2
Auziliary contact types
1 NO + 1 NC
Min Operational Current (A)
3.1
Max Operational Current (A)
4.2
Tripping Characteristic
Class 10
Reset Mode
Automatic or manual
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