Casing
Self supporting aluminium frame construction with highly impact resistant PA6 corners. 30 mm glass wool acoustic and thermal insulation.
Motor
Depending on the version, equipped with voltage controllable external rotor motors or frequency inverter controllable standard motors.
Impeller geometry
Radial impeller with backward curved blades.
Output control
Depending on the version, output control via transformer, star-delta switching or frequency inverter is possible.
Motor protection
Integrated thermal contacts with cables for connection to a motor protection switching device. The motors are equipped with PTC thermistors with cables for connection to a motor protection switching device.