SAFETRON REC is a relay card which handles re-occupancy in combination with SAFETRON SL621 or SAFETRON SL630 when these are used with emergency evacuation fitting 794.
The pressure function in SL621 and SL630 has the opposite function and thereby activates re-housing by breaking down the voltage to the door environment. The breakdown can be done by activated fire alarm or by activated emergency fitting 794 which is connected to the SAFETRON REC.
The activation to the pressure is connected via the relay board REC, the microswitch of the emergency evacuation device is connected to the relay board. When the emergency escape fitting is activated, the latching relay switches, which breaks the voltage to the pressure, which is then placed in a mechanically connected position and thus allows re-occupancy.
Reset takes place by potential-free connection to the relay board. SAFETRON REC has alarm outputs NO/NC to signal activated re-homing.