Features

Centrifugal roof fan with vertical discharge, with efficiency optimized aluminium casing and new developed high performance centrifugal impeller Casing from seawater-resistant aluminium with integrated protection guard. Motor support and base plate with inlet cone from galvanised steel. Base plate with threaded bolts for connection of intake air accessories (hole pattern to DIN 24155, page 3). Bird guard according to DIN EN ISO 13857 on the outlet as standard. High efficiency backward curved centrifugal impeller made from galvanised sheet steel. Dynamically balanced to DIN ISO 1940-1. Driven by energy-saving, speed-controllable EC external rotor motor with maximum efficiency. Maintenance-free and interference-free, ball bearing mounted. Integrated electronic temperature monitoring for EC motor and electronics. With an internal potentiometer as standard for setting any fan speed between min. and max. speed. Continuously variable speed control with external potentiometer or continuously variable speed control with EUR-EC universal control system. Connection via standard terminal box (IP65) on the outside of the casing.