Dorma TS73 EMF EN4-6 Electro Magnetic Hold Open Door Closers Body Only Silver

Door closer is a mechanical device that closes a door in a controlled manner, preventing it from slamming. A door closer function is a hydraulic device that is used to automatically close a door after it has been opened. Door closers are commonly used as a fire prevention measure, typically installed on fire doors, as well as helping to prevent draughts.

Combination of hydraulic door closer and electromagnetic hold-open unit. Hold-open of the door is performed under electromagnetic control. In the event of a fire, door is reliably closed by the integral hydraulic closer. Closing cycle is also initiated by manual door operation or automatically in the event of a power failure.