Art. no.: 5717
Integral thermal contacts
Low sound level
Maintenance-free and reliable
The DHS models have impellers with backward curved blades and external rotor motors. All motors are speed controllable over the voltage. Frequency inverters must have an allpole sine filter. The motors are suspended on effective vibration dampers.
DHS …EZ / EV / ES: 1~ motor with connection for 2-speeds
DHS …E4: 1-speed motor
DHS …DV / DS: 3~ with Y/D-connection for 2-speeds
To protect the motors from overheating the DHS up to size 311 have integral thermal contacts, from size 355 with external leads for connection to a motor protection device.
The casing is made from aluminum and the base frame is made of galvanised steel. Suitable for coastal applications. The impellers up to size 355 are manufactured from polyamide PA6 25GV, from size 400 in aluminium.
DHS with outlet horizontal
|Air flow||max 2,620||m³/h|
|Capacitance of capacitor||5||µF|
|Temperature of transported air||max 40||°C|
|Max temperature of transported air, when speed controlled||40||°C|
|Sound pressure level at 10m (free field)||37||dB(A)|
|Sound pressure level at 4m (free field)||45||dB(A)|
|Enclosure class, motor||IP54|
|Dimensions and weights|
Roof fan, horizontal discharge.
Round hood made of saltwater-proof aluminium. Base frame with deep-drawn admission nozzle made of galvanised steel sheet, 40 µm powder-coated RAL 7030. Powder-coated bird-protection grid
Free-running, backward curved circular impeller made of polyamide PA6 25GV, balancing quality G 6.3, dynamically balanced acc. to DIN ISO 1940-1.
Voltage controllable external rotor motor,
vibration-free mounted, the motor is placed inside the air flow for cooling. Motor protection by integral thermal contact with leads to a motor protection device.
Speed control via transformer or thyristor.
Terminal box (IP44) on the motor.
For outdoor installation.
Vertical installation position.
Conformance: EN 60335-1
|Document filename||Document filetype|