The fire door controller and the electromagnetic door suction form a normally open and normally open fire door control device, which is suitable for the fire center to provide only a linkage signal (no control power supply) or no independent detector with the fire center to form an independent system.
DC-X type fire-fighting electromagnetic door suction has the status of keeping the fire door normally open, and releases the fire door when the power is off. The fire door closes the fire door by the door closing device, and feeds back the door status signal to the fire control center. Comes with a manual release button to manually close the fire door on site.
Used in conjunction with mechanical door closers, the door body positioning device uses electromagnetic principle to generate suction. It has the functions of keeping the fire door normally open at normal times, being able to be released when the power is off, and the mechanical door closer closing the fire door and being in an evacuation state.
The electric door closer usually keeps the normally open fire door in the open state; when a fire occurs, close the fire door, and monitor and record the fire door opening, failure, and closing status information; feedback the information to the fire door monitoring host (or extension); applicable For control of normally open fire doors.