FR-series 

Robust saftey switches F400 for harsch environments. 

Fire resistent, designed and constructed to withstand 400 ° C for 120 minutes in accordance with EN 12101-3: 2015 as fire resistance classification F400 120 min. Systems and components for flue and fire gases, requirements for fire and gas fans and mechanical fire ventialtion.

The switch is specially developed to be resistant at very high temperatures for a long time.

The switches also comply with standard IEC 60947-3. When a safety switch is to be used only to separate the load, it is necessary to have both an electrical switch for start and stop load in an electrical circuit and a separate electrical switch as a safety switch. Version with Aux-contact is both NO/NC