ebmpapst Axial Fan DC 171.5x171.5x50.8mm 12V 600m³/h

With speed signal /2, proportional, square-wave signal for external monitoring of the fan motor speed. Direction of rotation counterclockwise looking towards rotor. Connection via single wires AWG 18, 20 or AWG 22, TR 64, speed signal and control input AWG 22. Housing with grounding lug for screw.