The R2E225-BE51-09 is a 115VAC Motorized Impeller/EC Centrifugal Fan with a maintenance-free ball bearing and fiberglass-reinforced plastic PA 6.6 impeller. This R2E225 series Ø225mm backward curved impeller is highly resistance to dirt and dust. It features variable cable exit and very high hydraulic efficiency. The direction of rotation is clock wise as seen from the intake side.