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Trade Counters Home > FLOOR SPRINGS: ELECTRO MAG > ELECTRO MAG HOLD OPEN
Electro-magnetic hold open floor spring - allows a fire door to be held open electro-magnetically to provide free flow of traffic. However in the event of a fire (or power failure) the magnet is released and the floor spring will close the fire door securely.
Fixed spring strength: EN4/5/6
Click here for Declaration of Performance
This product has been discontinued and the nearest equivalent will the dormakaba BTS80 EMB (you will need to move and re-set the cement box as the spindle is in a different location)