Дахові вентилятори з прямим приводом Systemair DHS 450D4 SA

• Available from sizes 400 up to 630

• High efficiency

• Speed-controllable

• Integral thermal contacts

• Excellent sound level

• Extensive range of accessories

• Maintenance-free and reliable

The DVS/DHS/DVSI

sileo

, in sizes from 400 up to 630, is well suited for applications requiring high air volumes at medium pressure and very low noise levels. These models have 3D profiled impellers with backward curved blades and external rotor motors. All motors are speed controllable over the voltage. For speed controlling of the DVS/DHS/DVSI

sileo

roof fans with a frequency converter a type with all pole sine filter is needed! The motors are suspended on effective vibration dampers.

To protect the motors from overheating the

sileo

range motors are equipped with thermal contacts with external leads for connection to a motor protection device. The casing is made from aluminum and the base frame from galvanized steel. Suitable for coastal applications. The impellers of the

sileo

types are manufactured from high-performance composite material with highly efficient 3D fan blade profile technology.

DVS

sileo

with vertical outlet

DHS

sileo

with horizontal outlet

DVSI

sileo

has a 50 mm mineral wool insulation for lower noise levels.