Standard Round Axial Fan, 3 1/2 in Depth, 115V AC, Terminals/ SPEED ADJUSTMENTS: 0 TO FULL SPEED OVERALL DEPTH: 3.260 INCHES NOMINAL LENGTH: 3.500 INCHES NOMINAL FLOW DIRECTION: OUTWARD AMBIENT TEMP AT FULL RATED POWER: 176.0 DEG FAHRENHEIT OPERATING SPEED AT RATED CAPACITY IN RPM: 1600.0 ELECTRICAL CONNECTION TYPE: TERMINAL STATIC PRESSURE AT SPECIFIED AIR FLOW RATE: 0.0 INCHES OF WATER DRIVE TYPE: DIRECT PRIME MOVER TYPE: ELECTRIC MOTOR INCLOSURE TYPE: PARTIALLY INCLOSED MOUNTING FACILITY TYPE AND QUANTITY: 16 UNTHREADED HOLE ROTATION DIRECTION FOR WHICH DESIGNED: CLOCKWISE AIR FLOW RATE: 665.0 CUBIC FEET PER MINUTE NOMINAL VOLTAGE IN VOLTS AND CURRENT TYPE: 115.0 AC PRIME MOVER POWER RATING: 26.0 WATTS PRIME MOVER DRIVE SHAFT BEARING TYPE: BALL PHASE: SINGLE FREQUENCY IN HERTZ: 50.0 AND 60.0 MATERIAL: PLASTIC BLADE MATERIAL: ALUMINUM HOUSING STYLE DESIGNATOR: 32 FIXED