AO Smith Century Motor Three Quarter HP Single Phase 115 230 Volt Square Flange B847

Meet the A.O. Smith Century Motor 3/4 HP, a durable, single-speed solution built to retrofit smoothly into a wide range of equipment. With a proven legacy spanning more than 75 years, this 1-S SqFl motor delivers reliable performance for residential, commercial, and industrial applications, backed by the trusted quality of A.O. Smith / Century and Regal Beloit.

Why this motor stands out

• 3/4 horsepower of dependable power for pumps, blowers, and compact machinery, delivering steady torque when you need it most.
• Single-speed operation (1-S) for predictable, straightforward performance—no complex speed controls to manage in the field.
• Square flange mounting (SqFl) simplifies retrofit projects, aligning with common mechanical footprints to minimize modification time.
• Dual-voltage capability (115/230V) provides installation flexibility across different electrical environments, reducing the need for multiple stock parts.
• Durable, PSC design engineered for long life in demanding environments, with a heritage of reliable operation in HVAC, pool, and spa equipment.
• OEM and replacement ready—a trusted option for original equipment manufacturers and distributors seeking a consistent, long‑term supply of quality motors.
• Global support, local availability—backed by Regal Beloit America (Century/A.O. Smith) and widely stocked by specialty distributors, including Bath & Spa Parts Online, ensuring ready availability and expert guidance.

Ideal applications and use cases

This motor is a versatile replacement and upgrade option for a range of systems:

• Pools, spas, and jetted tubs where dependable, quiet operation is essential
• Residential and light commercial HVAC components requiring a compact, powerful motor
• Small to mid-size pumps and blowers that benefit from a compact, square-flange form factor
• OEM equipment where a proven Century/A.O. Smith motor is part of the design heritage

What problems it solves

• Minimizes downtime with a readily available, long‑standing motor family trusted by technicians and distributors alike
• Reduces retrofit headaches thanks to dual voltage compatibility and square flange mounting
• Provides a reliable, straightforward replacement option that aligns with existing PSC‑based systems

Specifications at a glance

• Horsepower: 3/4 HP
• Speed: 1‑S (single-speed)
• Mounting: SqFl (square flange)
• Voltage: 115/230V
• Model/Code: B847

Installation and maintenance tips

For a smooth replacement experience, verify the mounting footprint and shaft alignment with your existing setup. Ensure correct voltage selection (115V or 230V) and confirm that the capacitor and wiring are suitable for a PSC motor of this size. Keep the motor clean and dry, and perform routine checks on electrical connections to prevent arcing and ensure consistent performance over time.

Why buy from a trusted distributor

As a longtime partner of the HVAC, pool, and spa industries, A.O. Smith / Century motors are backed by a global support network and extensive OEM and replacement inventory. Regal Beloit America’s stewardship ensures ongoing product availability and service across the United States, Mexico, China, and Europe, helping you source exact replacements quickly and confidently. Bath & Spa Parts Online is proud to offer Century/A.O. Smith replacement motors, reflecting decades of experience in the pool and spa sector and a commitment to quality you can trust.

Whether you’re a contractor stockpiling reliable replacements or an OEM designer seeking a proven motor family, the A.O. Smith Century 3/4 HP motor delivers consistent performance, easy integration, and enduring value.