Roof Fan Motor Conversion Kit Compatible with Grainger Part Number 16D517 43Y140 5DVR2 5DVT2 6KWH9 Motor Horsepower 1/4 hp Maximum Motor Speed 1 725 RPM Minimum Motor Speed 300 RPM Nameplate Voltage 115V AC Phase 1 For Fan Type Upblast Fans Shaft Diameter 1/2 in Application Convert Exhaust Fan to Variable Speed Fan Current 3.9 A For Use With 6KWH9 Maximum Motor Horsepower 1/4 hp Motor Enclosure Open Dripproof Motor Type Electronically Commutated Standards cUL UL