Dayton
Dayton 53DD28 Three-Phase Motor 2 HP 143/5T Frame
Three-phase general-purpose motor delivering 2 HP at 1745 RPM with 208-230/460 V operation and 86.5 percent nominal efficiency
- Delivers 2 HP power for demanding industrial tasks
- Runs efficiently at 86.5 percent nominal efficiency reducing energy costs
- Operates on 208-230/460V three-phase supply for versatile installation
- Withstands harsh environments with IP23 open drip-proof steel frame
- Handles continuous duty cycles with 1.15 service factor reliability
Three-Phase Motor 2 HP 143/5T Frame
The Dayton 53DD28 is a general-purpose three-phase motor rated at 2 HP with a 143/5T frame. It suits industrial machinery, pumps, fans and conveyor drives that require a standard NEMA footprint. The open drip-proof enclosure and rigid base mounting fit typical indoor installations where exposure to dripping liquids is limited. Buyers needing a wash-down or totally enclosed design should look elsewhere.
Thermals Noise Power Draw
Insulation class F and a 1.15 service factor allow continuous duty at up to 40 degrees C ambient temperature. Nominal efficiency is 86.5 percent at full load, drawing 5.7 to 5.3 amps at 208-230 V or 2.7 amps at 460 V. The motor carries CSA and UL recognition. No internal thermal protection is fitted, so external overload devices must be provided by the installer.
Upgrade Path
This unit replaces an existing 2 HP three-phase motor in the same 143/5T frame with compatible voltage and speed ratings. The jump is worthwhile when the current motor lacks the 1.15 service factor or class F insulation needed for higher ambient loads. It does not suit applications that require a different frame size, single-phase supply or built-in thermal switches.
Highlights
- Delivers 2 HP power for demanding industrial tasks
- Runs efficiently at 86.5 percent nominal efficiency reducing energy costs
- Operates on 208-230/460V three-phase supply for versatile installation
- Withstands harsh environments with IP23 open drip-proof steel frame
- Handles continuous duty cycles with 1.15 service factor reliability
Specifications
| Brand | DAYTON |
|---|
Questions about this item
How do I wire the 208-230/460V three-phase motor for low voltage, and what step is often missed?
Connect the nine leads in parallel for 208-230V operation; the step often missed is verifying the nameplate full-load amps of 5.7-5.3 A match the overload setting.
Which parts will need replacement first on this 143/5T frame motor with ball bearings?
The ball bearings are the primary wear item; plan to inspect and relubricate or replace them per the manufacturer's schedule for continuous duty at 1745 RPM.
What thermal limit stops this 2 HP motor with 1.15 service factor during sustained heavy loading?
The insulation class F rating and 40°C maximum ambient temperature define the thermal limit; exceeding either reduces winding life before the 86.5% nominal efficiency drops.
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