Monitoring of direct or alternating current in live installations. An exceeding or falling below the set values is displayed and a switching process is triggered. The integrated 7-segment display provides information about the causes of the error. By means of a manual input on the device the current type to be measured (AC or DC), an upper and a lower threshold value, the delay time as well as the error memory (on or off) can be set. The two current measuring ranges can be selected via the connection terminals. An error acknowledgment can be performed directly on the device as well as via an external contact. Connection with screw terminals.This text is machine translated.