Specialty Drives

The D+H DDS 54/500 is a 24 V DC door-opening drive for compatible single-leaf doors used as smoke make-up air, smoke ventilation or controlled opening doors. The door remains available for normal manual use, while the DDS drive opens it automatically following a fire alarm or another configured control signal. EBSA provides system design, control integration, programming and commissioning support.

The D+H SHD 54/450-BSY+ is a synchronised dual-drive system for opening and closing wide side-hung windows. Two BSY+ chain drives operate each sash together, providing up to 450 mm stroke and opening angles of approximately 65° for natural ventilation and compatible smoke ventilation applications.