Dold MK9151N.12 2-450K AC230V 0,2-20S Safety relay, Part N: 0054100

Level monitoring and control for conductive liquids and powders, e.g. maximum and minimum filling levels, overfilling and protection against dry running
Monitoring and control of the mixing ratio of conductive liquids
General resistance monitoring tasks, e.g. limit temperature detection with PTC
Contact protection relay with time delay