The Zhongshan Broad-Ocean model ZWK702B53888015 (often referenced as part number ZWK702B5388801S) is an OEM 1/2 HP electronic commutative (ECM) furnace blower motor. It operates on 115/120 volts, features a variable speed or programmed module design, and is commonly used in residential HVAC air handlers and furnaces (such as Nordyne or Frigidaire systems). Specifications Manufacturer: Zhongshan Broad-Ocean Motor Co., Ltd.Type: ECM Furnace Blower Motor and Module Horsepower: 1/2 HP Voltage: 115/120V (Single Phase)Speed: 1050 RPM class / Variable KMSAH013A07