Quick Verdict
Need an industrial motor but not sure whether to prioritize low-speed continuous power or high-speed compressor output? The Baldor-Reliance RL1324A and the Single Phase 5HP SPL Air Compressor Motor answer that question differently. Pick the Baldor-Reliance when you need a steady, general-purpose motor for long-running equipment. Pick the 5HP SPL when you want air-compressor-focused power. The difference is clear: one is a high-output compressor specialist, the other is a steady continuous-duty generalist.
At a Glance
| Feature | Baldor-Reliance RL1324A | Single Phase 5HP SPL Air Compressor Motor |
| Price | USD 275.00 | USD 141.88 |
| Horsepower | 3/4 HP | 5 HP |
| Speed | 1725 RPM | 3450 RPM |
| Voltage | 115/230V | 230V |
| Frequency | 60 Hz | 60 Hz |
| Frame | NEMA 56 | 56 |
| Enclosure | Open | ODP (open drip-proof) |
| Intended use | General industrial motor | Air compressor motor |
Where Each Product Wins
The right choice is not about which motor is better overall; it's about which motor better fits the machine you're driving.
The Baldor-Reliance RL1324A is the stronger match for equipment that runs for long stretches and needs controlled, lower-speed operation. It fits general industrial tasks where steady output matters more than raw speed.
The Single Phase 5HP SPL Air Compressor Motor is the stronger match for compressor service and high-output applications. It also offers extra setup flexibility with its reversible rotation.
Product Notes
Baldor-Reliance RL1324A Industrial Electric Motor
The Baldor-Reliance RL1324A is a 3/4HP single-phase 60Hz motor rated for continuous duty, with a speed of 1725 RPM. It can be wired for either 115V or 230V, which makes it a flexible fit for a 56-frame industrial setup. The open enclosure keeps maintenance straightforward and lets heat escape during operation. Its full-load current is 10 amps at 115V or 5 amps at 230V. At $275.00, the Baldor-Reliance costs more than the alternative, so the value comes from its continuous-duty rating and dual-voltage wiring. It is offered as new open-box. The limitation is the modest 3/4HP output: it does not have the starting torque or speed to serve as a high-volume air compressor motor. Choose it for tasks that call for steady low-RPM operation rather than high-speed bursts.
Single Phase 5HP SPL Air Compressor Electric Motor
The Single Phase 5HP SPL Air Compressor Electric Motor is named for the job it does: supplying 5HP at 3450 RPM on 230V single-phase. It draws 17.6A at full load and comes with a 5/8\" keyed shaft and 1.88\" shaft length, which help when matching a compressor pump or pulley. Its CW/CCW rotation lets you set the direction to fit your compressor setup, and it arrives with a CCW factory rotation. At $141.88, it offers more horsepower than the Baldor-Reliance at a lower price. The trade-off is specialization: this is a 230V-only SPL motor intended for air compressor work, not a general-purpose motor for low-speed tasks. The 3450 RPM speed also makes it a poor fit for equipment that needs slow, steady rotation. If you are outfitting a compressor, the 5HP SPL gives you high-speed power without the premium price.
Final Choice by Use Case
For an air compressor replacement or a high-output motor, choose the Single Phase 5HP SPL Air Compressor Electric Motor. For continuous general industrial work, choose the Baldor-Reliance RL1324A. If you are still on the fence, think about the workload: the compressor motor is built for air compressor cycles, while the Baldor-Reliance is built for ongoing general use.
