Meaning of TK in wiring diagram?

[andys]

As title, does anyone know what a terminal labelled "TK" would mean?

 

[mmi]

As title, does anyone know what a terminal labelled "TK" would mean?

Thermo contact – for thermal protection activation, for example overheat. Normally closed contact – when overheat contact opens. Can/should be used to signal power supply to switch off the feed.

 

[Pauly]

Remember the abbreviations are shortened German so not always obvious

 

[andys]

Thermo contact – for thermal protection activation, for example overheat. Normally closed contact – when overheat contact opens. Can/should be used to signal power supply to switch off the feed.

Great thanks Google had failed me