Image is Representational - See Manufacturer Specs | DC Fans DC Tubeaxial Fan 60x60x25mm 24VDC 33CFM 3W 6850RPM 41dBA Ball Bearing The 614NHH is a 24VDC Axial Fan with ball bearing speed signal Go/No-go alarm wire leaded power connection. Fibreglass-reinforced plastic (PBT) housing and fibreglass-reinforced plastic (PA) impeller. Motor protected against reverse polarity and locking. Locked-rotor with electronic blocking and overload protection. 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. Exhaust over strut