q DC fans with electronically commutated external rotor motors. Fully integrated commutation electronics. q With electronic protection against reverse polarity, blocking and overloading by PTC-resistor; partially impedance protected. q Metal fan housing. Impeller of fibreglass reinforced plastic PA. Housing with ground lug for screw M4. q Air intake over struts. Rotational direction CW looking at rotor. q Electrical connection via 2 flat pins 2,8 x 0,5 mm. q Mass 390 g. SERIES 4100 Sin te Ba c.
