How does one set the LRD** TeSys overload relays to the automatic trip mode?
Converting an LRD overload relay to automatic reset mode.
Tesys D line overload relays
Products sold and used in the United States
Setting an LRD overload to auto reset mode
The units are shipped from the factory in the manual reset mode. There is a selector just to the right of the trip current adjustment dial and below the test button. It is a a small cover imprinted with an H. Removal of this cover with a small flat-bladed screw driver, or other small tool, allows the conversion of the overload relay to automatic reset mode. Use the small flat bladed screwdriver to move the slider over to the letter A. The recent production devices can be converted back to manual, early production Tesys devices could only be converted once to Automatic.