Particular design features: Very smooth running 3-phase fan drive. Very high pressure build-up. Backward-curved RadiCal impeller with maximum efficiency. Standard models available with multifunctional control input for analogue, PWM and speed signal. Compact design with integrated mounting plate and optimised inlet nozzle. General features: Impeller and housing made of fibreglass-reinforced plastic. Electronic commutation completely integrated. Direction of rotation: clockwise, seen on rotor. Direction of air flow: axial air intake, centrifugal air exhaust. Connection via single strands AWG 18, 20 or AWG 22, TR 64, speed signal and control input AWG 22, bared and tin-plated. Mass: 1750 g