Overview Product Description US-Nidec 8451UI RESCUE ECM Direct Drive Blower Motor 1 HP - 3/4 HP 1800 VARIABLE SINGLE SPEED OPEN AIR OVER 120/208-240 VOLT 12.4/8.1-7.2 AMP 48Y FRAME 5.5" DIAMETER CCW LEAD END ROTATION 1/2" x 4" SHAFT C-DIMENSION 10.25" Features: Ball Bearings, Electronic Thermal Protection, Brushless Permanent. Adjust motor speed by using on-board, or 0-10 VDC user-supplied external potentiometer. Cross Reference: M055DSJ0754011B, Suitable Replacement M055PWCUL-0316 Product Videos Custom Field Product Reviews