DORMA’s new range of EM hold-open magnets provides the perfect complement to a technically and aesthetically advanced range of fire and smoke check door products. These new market-orientated developments are characterized by their ease of fixing and functional elegance. And thanks to comprehensive quality assurance, they also offer maximum reliability and service life.
The statutory regulations which apply in many countries allow fire and smoke check doors to be held open for a limited period of time by electro-magnetic hold-open devices which, in the event of a fire, are de-energized to release the door so as to enable automatic closing.Manual release
It must also be possible to manually release any hold-open device. According to the applicable guidelines for hold-open systems, a manual release pushbutton is necessary when employing electromagnets in such applications. The pushbutton employed must be red, carry the wording “Close door”, be located in the immediate vicinity of the door, and must not be hidden when the door is in its hold-open position.Benefits for the trade/distributor