Particular design features: Very rigid compression curve for high air flow at high counterpressure. Low operating noise level at high counterpressure. Standard with PWM control input and speed signal. Other inputs and outputs on request. General features: Housing made of aluminium, impeller made of fibreglass-reinforced PA; housing with grounding lug for M4 x 8 screw (Torx). Protected against reverse polarity and locking. Electrical connection via single strands AWG 22, TR 64, bared and tin-plated. Air exhaust over bars. Direction of rotation counter-clockwise seen on rotor. Mass: 910 g.