Description
Half HP 48Y Motor 230V 3450 RPM – Dual-Voltage Pool & Spa Motor
Power your pool and spa equipment with confidence using this 1/2 HP, 3450 RPM motor from A.O. Smith (Century Electrical). Built for durability and straightforward integration, it fits standard 48Y frame installations and supports dual-voltage configurations for flexible use across equipment.
- Power and speed: 1/2 HP at 3450 RPM (two-pole, 60 Hz) delivering solid starting torque and reliable runtime for pool pumps, spa pumps, conveyors, or small belt-driven machines.
- Dual-voltage operation: Accepts 208-230 VAC or 460 VAC, simplifying compatibility with existing electrical distributions and reducing spare-part complexity.
- Frame and mounting: 48Y frame design ensures broad mounting compatibility with standard pool and spa equipment.
- Service factor: 1.9 service factor provides extra headroom for brief overloads, helping prevent nuisance trips during startup or surge conditions.
- Electrical current: Max amps of 3.0 A at 208-230 V or 1.5 A at 460 V, aiding in proper wiring and breaker sizing.
- Shaft and connection: 29 mm shaft diameter matches common pump couplings and installation standards for easy alignment.
- Overload protection: Ships without an internal overload protector; pair with a compatible motor starter and external thermal overload protection for safe start-up and long-term protection.
- Brand reliability: Manufactured by A.O. Smith / Century Electrical, known for durable motors designed for pool and spa systems and backed by a legacy of service and support.
This motor is ideal for belt-driven pool and spa equipment, small circulating pumps, and light-industrial applications where space is at a premium. Use it to replace legacy 48Y motors or to outfit new installations where a compact, efficient, dual-voltage drive is beneficial. For optimal performance, pair with an appropriately sized external protector and motor starter, confirm shaft and mounting compatibility, and size protections to 1/2 HP at your operating voltage.
Power your small to mid-size equipment with confidence using the Motor 1/2 HP, 48Y, 230V. Built for durability and straightforward integration, this compact motor delivers reliable torque and efficient operation in a variety of industrial settings.
With a two-pole design spinning at 3450 RPM, it’s ideal for demanding drives that run at 60 Hz. The dual-voltage capability (208-230/460 VAC) provides flexible installation options, whether you’re upgrading existing systems or stocking spares for multiple machines.
Key features that set this motor apart
- Power and speed: 1/2 horsepower at 3450 RPM for solid starting torque and steady running on conveyors, pumps, fans, and machine tools.
- Flexible voltage: Accepts 208-230 or 460 VAC, simplifying compatibility with your electrical distribution.
- Durable frame: 48Y frame preserves mounting compatibility and serviceability with standard industrial practices.
- High service factor: SF 1.9 provides additional headroom for brief overloads, helping absorb surge demands without tripping.
- Compact and efficient: A small footprint that fits tighter spaces while delivering reliable performance.
Important installation note: This motor ships without an internal overload protector. To safeguard equipment and wiring, pair it with a compatible motor starter and thermal overload protection. Proper protection sizing is essential for safe start-up and steady operation under varying loads.
Specifications at a glance
- Horsepower: 1/2 HP
- RPM: 3450
- Voltage: 208-230/460 VAC
- Max Amps: 3.0 A (208-230 V) / 1.5 A (460 V)
- Service Factor: 1.9
- Frame: 48Y
- Overload Protector: None
- Approx. AG: 9-7/8
- Connection Dia.: 29
Ideal applications and practice tips
This motor is well-suited for belt-driven equipment, small pumps, fans, and other light-industrial machinery that benefits from a reliable 1/2 HP drive within a standard 48Y frame. It’s a practical replacement for legacy motors in HVAC, manufacturing lines, or automated systems where space and mounting compatibility matter.
Practical setup tips:
- Confirm your electrical supply matches the dual-voltage range (208-230/460 VAC) before installation.
- Plan for external protection: select a thermal overload relay or motor starter sized for 1/2 HP at your operating voltage.
- Check mounting and shaft connections to align with the 48Y frame footprint and the 29 unit connection diameter.
- Use this motor in applications that can leverage its SF 1.9 for brief overload tolerance, but avoid sustained overloads to protect long-term life.

