Systemair DHS 310EV - Centrifugal roof fan, <125W, horizontal discharge

Speed-controllable 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. 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 from galvanised steel. Suitable for coastal applications. DHS with outlet horizontal