Choosing between industrial motors starts with the job's power requirement and physical configuration. Here, the decision is clear: the 5 HP 184T motor is aimed at a much higher-horsepower air-compressor application, while the 3/4 HP 56C motor puts more detail around shaft size, reversible rotation, and dual-voltage operation.
Quick verdict
Pick the 1 Piece 5 HP Single Phase Industrial Air Compressor Electric Motor 184T Frame when the application calls for a 5 HP, single-phase motor operating at 208-230V and using an 184T frame. Its listed price is USD 455.00.
Choose the 115V/230V 3/4 HP Electric Motor Single Phase 1725 rpm 5/8'' shaft 56C Frame when a 3/4 HP motor, 56C frame, 1725 RPM rating, keyed 5/8-inch shaft, and CW/CCW reversible rotation match the job. It is listed at USD 144.06. The listed-price spread between them is USD 310.94, reflecting their very different horsepower classes.
At-a-glance comparison
| Detail | 5 HP 184T Air Compressor Motor | 3/4 HP 56C Motor |
|---|---|---|
| Listed price | USD 455.00 | USD 144.06 |
| Phase | Single phase | Single phase |
| Horsepower | 5 HP | 3/4 HP |
| Voltage | 208-230V | 115/230V |
| Frame | 184T | 56C |
| Enclosure | ODTF | TEFC |
Where each motor wins
5 HP 184T Air Compressor Motor: higher-power compressor focus
The 5 HP rating is the defining reason to select this motor. Its title specifically identifies an industrial air compressor use, and the 184T frame plus 208-230V operating range position it for a distinctly larger motor requirement than the 3/4 HP alternative. The listed 27.0-28.5 A amperage range is another useful match point for a higher-output single-phase setup. Choose this direction when 5 HP and the 184T frame are central requirements rather than optional preferences.
3/4 HP 56C Motor: detailed shaft and rotation specifications
The 3/4 HP motor is the more specific choice when the mechanical details in its description align with the intended setup. It lists a 56C frame, keyed 5/8-inch shaft, 1.88-inch shaft length, and 1725 RPM rated speed. It also lists reversible CW/CCW rotation and 115/230V operation. Those details make it the more targeted pick for a lower-horsepower application built around those stated dimensions and rotation needs.
Product notes
1 Piece 5 HP Single Phase Industrial Air Compressor Electric Motor 184T Frame
This is the direct choice for a job that calls for 5 HP in a single-phase motor and is centered on an industrial air compressor. The 184T frame and 208-230V voltage range give the selection a clear operating profile, while the steel material and ODTF enclosure are also specified. Its stated 27.0-28.5 A amperage range further distinguishes it from the smaller motor. The main constraint is equally straightforward: its 5 HP output, 184T frame, and 208-230V configuration make it a specialized match rather than a substitute for a 3/4 HP, 56C-frame motor. At USD 455.00, it also carries the higher listed price in this comparison.
115V/230V 3/4 HP Electric Motor Single Phase 1725 rpm 5/8'' shaft 56C Frame
The appeal here is a tightly defined lower-power specification: 3/4 HP, 1725 RPM, a 56C frame, and a keyed 5/8-inch shaft. Its 115/230V voltage rating and reversible CW/CCW rotation add flexibility within that stated configuration, and the TEFC enclosure is listed for this model. The 11.0/5.5 A full-load amperage specification is also provided for the two voltage settings. Its limitation is horsepower: this is not the comparable choice when the application calls for the 5 HP capacity named in the air-compressor motor. Select it when the 56C frame and shaft specification matter more than moving up to the larger 184T, 5 HP configuration.
Final choice by use case
For a listed 5 HP industrial air-compressor motor in an 184T frame, choose the 1 Piece 5 HP Single Phase Industrial Air Compressor Electric Motor 184T Frame. For a 3/4 HP, 1725 RPM motor with a 56C frame, keyed 5/8-inch shaft, and reversible operation, choose the 115V/230V 3/4 HP Electric Motor Single Phase 1725 rpm 5/8'' shaft 56C Frame. These are not interchangeable power tiers; the correct choice follows the horsepower, voltage, frame, and shaft requirements of the intended equipment.
