Description
1 HP 48Y Frame 3-Phase Motor, 208-230/460V, 3450 RPM, SF 1.65
Powerful, compact, and built for real-world industrial duty, this 1 HP 48Y frame 3‑phase motor delivers reliable torque and versatile voltage options for a range of equipment—from pool and spa pumps to conveyors and compact machinery. Supported by a proven two‑pole design, it starts quickly and maintains steady speed under load.
- Power & speed: 1 HP with a 2‑pole design, delivering 3450 RPM at 60 Hz for consistent, rapid acceleration.
- Frame: 48Y frame shape for broad compatibility with existing mounts and enclosures.
- Electrical type: Three‑phase induction motor engineered for rugged industrial service.
- Voltage options: Dual‑voltage operation—208–230 V or 460 V three‑phase power, simplifying upgrades and replacements across diverse plant layouts.
- Current draw: 4.7 A at 208–230 V and 2.35 A at 460 V, aiding electrical planning and protection sizing.
- Service Factor: 1.65, providing a generous overload margin for short‑duration peaks without compromising longevity.
- Protection: No built‑in overload protector—plan external overload protection or a protective relay to meet safety and code requirements.
- Shaft & mounting details: Shaft connection diameter 29 mm; approximate overall dimension AG of 10‑7/8" for precise coupling and enclosure fitment planning.
- Applications: Well suited for conveyors, pumps, fans, and compact machine tools where space is limited but power needs are steady.
- Brand heritage: From trusted A.O. Smith (AOS) / Century Electrical, combining reliability with compatible, widely used 48Y hardware.
This motor is designed to plug into established systems with minimal downtime during swaps. Its 48Y footprint ensures broad compatibility, while the dual‑voltage capability supports scalable automation and modernization projects. Remember to pair the unit with appropriate external overload protection to align with safety standards and to protect the winding and bearings during abnormal conditions. The combination of 1 HP output, solid SF headroom, and a compact form factor makes it a practical choice for upgrading or replacing older 3‑phase motors in space‑constrained installations.
Powerful, compact, and ready for real-world demanding work, this Motor - 1 HP, 48Y frame, 3 phase is designed to power a wide range of industrial equipment with reliability. Built around a robust two-pole design, it delivers steady speed and torque while staying versatile across different electrical setups.
- Horsepower and speed: 1 HP with a 2-pole design, spinning at 3450 RPM at 60 Hz for quick starts and dependable performance.
- Voltage flexibility: Dual-voltage operation supports 208-230 V or 460 V three-phase power, making it a practical upgrade or replacement in varied plant environments.
- Current draw: 4.7 A at low voltage (208-230 V) and 2.35 A at high voltage (460 V), enabling informed electrical planning and protection sizing.
- Frame and compatibility: 48Y frame ensures compatibility with a broad range of existing equipment and mounting configurations, simplifying replacements and retrofits.
- Strength under load: Service Factor of 1.65 provides a generous overload margin for short-duration peaks without compromising longevity.
- Protection and wiring notes: No built-in overload protector—plan for external overload protection or a protective relay to meet safety and code requirements.
- Physical connection details: Shaft connection diameter 29 and approximate overall dimension AG of 10-7/8, useful for coupling and enclosure fitment planning.
This motor is an excellent fit for conveyors, pumps, fans, and compact machine tools where space is at a premium but power needs are steady. The 48Y frame is a familiar, interchangeable choice for maintenance teams upgrading older installations, helping minimize downtime during swaps. With a 3450 RPM operating speed and a solid 1 HP rating, you get reliable rotational output without sacrificing efficiency in standard 60 Hz systems.
Practical deployment tips
- Match the correct voltage tap to your plant supply (208-230 V or 460 V) to ensure optimal torque and efficiency.
- Plan external overload protection sized to the motor’s 1 HP rating and its 1.65 service factor to guard against electrical faults and overheating.
- Verify shaft and coupling compatibility with a 29 mm connection diameter; ensure proper alignment to maximize bearing life and reduce vibration.
- Ensure adequate cooling and ventilation around the motor, especially in enclosed or hot environments, to maintain performance with the SF headroom.
Who should consider this motor
Maintenance technicians, equipment designers, and operations teams replacing existing 48Y-frame 3-phase motors or scaling up for dual-voltage capability will find this unit a practical, reliable option. Its combination of 1 HP power, 48Y footprint, and 60 Hz suitability makes it a straightforward upgrade path for a variety of industrial applications while preserving space and compatibility with established systems.

