Discomelt II

Properly installed, the thermostat / thermal link combination type 161 791 may be used for applications where a fixed temperature needs to be monitored or controlled and a maximum temperature must not be exceeded, for example in household appliances such as dishwashers and washing machines, small electrical appliances such as coffeemakers, steam generators etc. or in electrically monitored water heaters.

A vaulted bimetal disc is used as a temperature sensing element in the thermostat. The disc is placed in direct contact with the 
mounting plate of the combination therefore reacting quickly to changes in temperature. Upon reaching the preset temperature the bimetal disc operates and opens the electrical circuit. Upon cooling, the disc snaps back into its original position thereby closing the circuit again. The switching temperature is freely selectable within a wide range. The thermal link, approved in accordance with DIN VDE 0821 / EN 60691, has a solder insert in the mounting plate which is in direct thermal contact with the surface that is to be monitored. When the preset temperature is reached, the solder melts causing a pin to move which results in the electrical contacts opening. Resetting is not possible. 5 different preset solder temperatures are available. The two components thermostat and thermal link have a common mounting plate, which is responsible for thermal conduction. This ensures that the thermal information for thermostat and thermal link always comes from exactly the same source.

• easy mounting
• both components mounted onto one base plate with homogenous heat transfer
• very fast response time thanks to integrated solder strut in the base plate
• protected contact system, no cover cap necessary
• large variance in different, discreet fuse temperatures from Tf 206°C up to 318°C
• high continuous operating temperature Th
• high contact opening force
• high dielectric strength and long lifespan
• consistent performance characteristics and product quality through fully automated production

refer to approvals list which is available on request