The 6224NU is a 24VDC standard or basic speed Axial Fan with ball bearing and wire leaded power connection. Aluminium housing, fibreglass-reinforced PA impeller, housing with grounding lug for screw M4 x 8 (Torx). Fully integrated electronic commutation, electrical connection with flat pin terminals 3 x 0.5mm. Blowing over struts, counter-clockwise direction of rotation looking at rotor and environmentally friendly fan.