Description
1.5 HP 2-Speed 56J Frame Motor — 208-230/460V, 3450 RPM
Designed for pool and spa equipment and other light-to-mid duty drives, this 1.5 HP, 2-speed 56J frame motor from A.O. Smith / Century Electrical delivers dependable performance in a compact, easy-to-integrate package. Its dual-voltage capability offers flexible wiring for a range of installations.
- Horsepower: 1.5 HP (1-1/2 HP) for reliable, continuous operation in small to mid-size drives
- Speed: 3450 RPM (2-pole design) for steady belt-driven or direct-coupled performance
- Voltage: Dual-voltage 208-230V and 460V to fit different electrical infrastructures
- Current: Max 6.8 A at 208-230V; 3.4 A at 460V for appropriate wiring and protection sizing
- Frame: 56J frame — compact form that fits a wide range of pool, spa, and compact pump housings
- Shaft: Threaded shaft enables secure mounting with pulleys, sprockets, or couplings
- Protector: None — external protection within the system design is expected
- Service Factor: 1.3 for added margin under peak or start-up loads
- Connection Dia.: 29 mm (approx.) for consistent coupling fit
- Approx. AG: 11-5/16 in – compact depth reference for installation planning
Benefits for pool and spa installations include easier mounting with a threaded shaft, flexible voltage options to match your electrical system, and reliable 3450 RPM performance that supports steady water flow and ventilation in compact equipment. The 1.3 service factor provides a buffer during brief overloads, while the 56J frame maintains compatibility with common drive components. Backed by the trusted reliability of A.O. Smith / Century Electrical, this motor is a practical, no-nonsense choice for technicians upgrading or replacing 2-pole, 1.5 HP drives in pool pumps, spa circulating systems, blower assemblies, and other light-to-mid duty applications.
Meet a dependable workhorse for light to mid-duty machinery: the Motor - 1.5 HP, 2 SP 56J Frame Motor. Built for versatility, it delivers solid speed and torque in a compact, easy-to-integrate package that fits a wide range of equipment—from conveyors and small pumps to fan assemblies and processing line drives.
Key specifications at a glance
- Horsepower: 1.5 HP (1-1/2 HP)
- Speed: 3450 RPM (2-pole design)
- Voltage: 208-230/460 V (dual voltage for flexible wiring options)
- Max current: 6.8 A at 208-230 V; 3.4 A at 460 V
- Service Factor: 1.3
- Frame: 56J
- Shaft: Threaded
- Protector: None
- Approx. AG: 11-5/16
- Connection Dia.: 29
Why this motor stands out
This 56J-frame, 2-pole motor is designed for straightforward, reliable operation across a variety of drive configurations. The threaded shaft simplifies mounting and coupling with pulleys, sprockets, or couplings, reducing setup time and ensuring a secure, slip-free connection. Dual-voltage capability lets you tailor your installation to your electrical infrastructure—use 208-230 V for standard shop power or switch to 460 V for higher efficiency in larger drives.
Practical use cases
- Conveyors and Material Handling: steady 3450 RPM helps maintain consistent belt speed and throughput.
- Small Pumps and Blowers: responsive torque without large-size equipment.
- Machining and Tooling: reliable drive for light to moderate loads in compact machines.
- HVAC and Ventilation: suitable for compact fan assemblies requiring a robust, easy-to-drive motor.
Installation and best practices
For optimal performance, pair this motor with appropriate V-belt or direct-coupled drive components sized for 1.5 HP and a 56J frame. Ensure secure mounting on a rigid base, maintain proper alignment with the driven component, and select compatible wiring for your chosen voltage. The threaded shaft supports confident, torque-resistant attachment, but verify the pulley set-screw tension and coupling fit before powered operation.
Who should consider this motor
Ideal for technicians and facility operators upgrading or replacing 2-pole, 1.5 HP drives on small to mid-size equipment. If you need a compact, dependable motor with flexible voltage options, straightforward shaft coupling, and a proven 3450 RPM performance profile, this 56J frame motor is a practical, no-nonsense choice.