Casing
Casing manufactured from sea water resistant aluminium. Base frame with integrated inlet cone, manufactured from galvanised sheet. Includes bird guard manufactured from powder coated, galvanised steel.
DVNI with 50 mm acoustic and thermal mineral wool insulation.
Motor
Voltage controllable IEC standard motors and frequency converter controllable IE2 standard motors.
Impeller geometry
Radial impeller with backward curved blades.
Output control
Single phase motors can be speed controlled via a 5-step transformer. In addition, three-phase motors where indicated are step speed controllable via star-delta switching. IE2 motors can only be controlled via frequency converter.
Motor protection
Integrated thermal contacts or PTC thermistors with cables for connection to a motor protection switching device.