This Pfeiffer air cooling fan unit mounts to the side of HiPace 300H turbo pumps and provides air flow perpendicular to the pump. The HiPace 300H turbo pump's integrated TC 110 drive unit has a 15-pin D-Sub X3 connector which uses a special cable through which power is supplied by an OmniControl 200 or DCU 110 controller. This special cable (part number P103335 or P1011168, sold separately) has several M8 ports on it to power accessories. This air cooling fan plugs into one of the cable's M8 ports. The air cooling unit will always run when the pump is on. This radial air cooling fan unit has Pfeiffer part number PM Z01 301 A.