Reliable monitoring of contactors with mirror contacts
Operational switching of motors, heating etc. is the typical task of the contactor DIL M.
In hazardous situations the contactor DIL M is used to switch off the motor which drives the hazardous motion. The state of the contactor contacts are monitored here via mirror contacts.
If any main contact of a contactor
is closed, no mirror contact (auxiliary NC contact) conform to IEC
Further information about the Contactors