The 405 is a 5VDC Axial Fan with speed signal, Go/No-go alarm, PWM control input, moisture protection, Sintec sleeve bearing and wire leaded power connection. Fibreglass-reinforced plastic (PBT) housing and fibreglass-reinforced plastic (PA) impeller. Left direction of rotation looking at rotor, air exhaust over bars direction of air flow with single strands 28AWG, TR 64, bared and tin-plated leads. The DC axial compact fan is suitable for high air performance with moderate pressure build-up. The flow of air through the fan blades is parallel to the rotation axis. 6000RPM Speed rating 0.9W Rated power Noise 18.0 dB(A) RPM 6000 RPM -20 to 70°C Maximum ambient temperature range Protected against reverse polarity and locking