we have many LT6P0M005FM at our plant and now there is no replacement from Square D, Telemecanique, if one can help us in this regards

 

>TesysT from Schneider is the family that replaced LT6 they don't correspond as a 1 to 1 replacement but you should be able to select an appropriate replacement

http://www.schneider-electric.com/s.../en/shared/automation_and_control/tesys_t.xml