MRO Field Guide

1800 RPM 5 HP 184T vs Baldor-Reliance RL1324A: Which Industrial Motor Fits Your Job?

Choosing between a high-power 5 HP three-phase 184T workhorse and a compact Baldor-Reliance 3/4 HP single-phase 56-frame motor comes down to voltage, frame size, and load. Here's how to decide.

Last updated Aug 17, 2026

Choosing between two industrial motors usually comes down to what you are driving and what power you have available. On one side is a heavy-duty workhorse; on the other is a Baldor-Reliance industrial motor. One is built for demanding equipment; the other is a compact general-purpose motor for lighter jobs. The right choice changes with your mounting space, power supply, and duty cycle. Here is how they compare.

Quick verdict

If you need high output and overload capacity, the Severe Duty Electric Motor is the stronger choice at $330.95. If you need a lighter, lower-cost motor for a compact setup and a 115/230V circuit, the Baldor-Reliance RL1324A at $275 is a sensible fit. The price gap is $55.95.

Spec1800 RPM 5 HP 184TBaldor-Reliance RL1324A
Price$330.95$275.00
Motor output5 HP3/4 HP
Base RPM18001725
PhaseThree-phaseSingle-phase
Frame184TNEMA 56
EnclosureTEFC/IP55Open
Voltage230/460V115/230V

Where each product wins

  • The higher-output motor wins when your equipment needs serious torque for demanding loads.
  • The lower-power motor wins for lighter jobs where a smaller package and simple installation are the priority.

Product notes

1800 RPM 5 HP Electric Motor 184T

1800 RPM 5 HP Electric Motor 184T Frame TEFC 230/460V Severe Duty 3 Phase

If your application centers on moving significant power, this 184T-frame motor delivers 5 HP at 1800 RPM. It has a 1.15 service factor that permits 25% overload, plus Class F insulation to handle high-heat conditions. The keyed 1-1/8-inch shaft gives a secure connection to pumps, compressors, and conveyors, and it is built in the United States. The main limitation is physical: at 104 pounds with a 184T frame, it needs a properly sized base and enough clearance. This is not a drop-in replacement for small general-purpose machines, and the heavy steel construction means mounting and handling require more planning. It is a new motor, so you are working with an unused unit, but the frame and weight make it best suited to permanent installations where the motor can be bolted down and left in place. Choose it when horsepower and sustained duty are non-negotiable.

Baldor-Reliance RL1324A Industrial Electric Motor

Baldor-Reliance RL1324A Industrial Electric Motor

The Baldor-Reliance RL1324A is a 3/4 HP motor with a continuous duty rating, turning 1725 RPM on a NEMA 56 frame. Its single-phase design is easy to pair with conventional shop power, and the open enclosure is meant for cleaner indoor environments. As an open-box item, it offers a Baldor motor in a compact package. The limitation is the open enclosure: it is not suited to dusty, wet, or outdoor locations, so the motor works best indoors where the air is relatively clean. It also provides substantially less power than the 5 HP 184T, so it is best matched to lighter loads like small conveyors, fans, or bench tools rather than heavy industrial pumps and compressors. The continuous duty rating means it can run for long periods, but only within the lower power range this frame is designed for.

Final choice by use case

Choose the Severe Duty TEFC motor if you need high horsepower for pumps, compressors, conveyors, or other demanding machinery and want a TEFC design. Choose the Baldor-Reliance RL1324A if you need a continuous-duty motor for a smaller tool, fan, or light conveyor and the machine is located in a clean, dry area. Both are legitimate options; the right one simply depends on the load and the environment.

Products in this article
1800 RPM 5 HP Electric Motor 184T Frame TEFC 230/460V Severe Duty 3 PhaseUSD 330.95View on eBayBaldor-Reliance RL1324A Industrial Electric MotorUSD 275.00View on eBay
1800 RPM 5 HP Electric Motor 184T Frame TEFC 230/460V Severe Duty 3 PhaseUSD 330.95View on eBayBaldor-Reliance RL1324A Industrial Electric MotorUSD 275.00View on eBay

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