Century Motors 733A Motor

The Century Motors 733A Motor is a heavy-duty 1/2 HP blower motor designed for high-demand HVAC unit heater and direct-drive blower applications. Engineered as a direct replacement for Fasco D817, this 1140 RPM unit features a Permanent Split Capacitor (PSC) design that ensures consistent efficiency across 115/208-230 Vac single-phase electrical systems. Built with a NEMA 48Y frame and a totally enclosed (TEAO) housing, it provides superior protection against dust and debris in air-over environments. The motor utilizes ball bearings and a resilient base to minimize vibration and mechanical wear during continuous duty cycles.

For contractors, the reversible rotation and 1/2" x 5" shaft offer maximum installation flexibility across various equipment brands. This single-speed motor includes a 10MFD 370V capacitor and features automatic thermal overload protection to prevent winding failure during high-ambient operation. Whether you are performing an AC blower motor replacement or upgrading a commercial unit heater, the Century 733A provides the 5.6-2.8 Amps performance profile required for reliable air moving applications.

• Universal Compatibility: Serves as the primary PSC blower motor replacement for A.O. Smith 733, Fasco D817, and Universal Electric HF3L7069.
• Multi-Voltage Flexibility: Operates on 115V or 208-230V, allowing for a broader range of service calls with a single truck-stock unit.
• Durable Construction: Features Class B insulation and ball bearings rated for 60°C ambient temperatures.
• Smooth Operation: The resilient mounting and 1140 RPM speed profile reduce harmonic noise in residential and commercial ductwork.

Is the capacitor included with the 733A?
Yes, this motor is supplied with the required 10MFD 370V capacitor to ensure proper starting torque and efficiency right out of the box.

Can this motor be used in both heating and cooling applications?
This is an air-over (TEAO) motor, meaning it must be mounted within the airflow. It is ideal for unit heaters and direct-drive blowers where the moving air cools the motor housing.

How do I change the rotation direction?
The reversible rotation is easily adjusted by switching the internal lead connections as specified on the motor’s wiring diagram located on the nameplate.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.