Dayton
Dayton 2NKX3 3-Phase Motor 1 HP 143-5T/56HZ Frame
A 1 HP three-phase motor with open drip-proof enclosure, 1760 RPM, 230/460 V operation and 85.5% nominal efficiency for continuous-duty applications
- 1 HP three-phase motor delivers 1760 RPM for steady industrial output
- 230/460 V dual-voltage design fits common North American supply systems
- 5 % nominal efficiency reduces energy cost during continuous duty cycles
- Steel frame with ball bearings withstands 40 °C ambient conditions
- CSA and UL certifications confirm compliance with recognised safety standards
General-Purpose Three-Phase Motor
The Dayton 2NKX3 is a 1 HP three-phase motor built for continuous-duty industrial applications. It fits a 143-5T/56HZ frame and operates on 230/460 V AC at 60/50 Hz. The unit is suited for equipment builders and maintenance teams needing a standard rigid-base motor with CSA and UL listings.
Thermal and Electrical Characteristics
The motor carries a Class F insulation rating and a 1.15 service factor for sustained operation. Nominal efficiency is 85.5 percent at a nameplate speed of 1760 RPM. Full-load current draws 3.1 A at 230 V and 1.60 A at 460 V, with a maximum ambient temperature of 40 °C. No dedicated thermal protection is fitted.
Open Drip-Proof Enclosure and Mounting
An open drip-proof enclosure allows airflow while guarding against falling liquids, making it appropriate for clean, dry indoor settings. The steel frame uses ball bearings and a rigid base for secure mounting. The shaft rotates in either direction, giving installers flexibility without extra accessories. Proposition 65 notices apply.
Highlights
- 1 HP three-phase motor delivers 1760 RPM for steady industrial output
- 230/460 V dual-voltage design fits common North American supply systems
- 5 % nominal efficiency reduces energy cost during continuous duty cycles
- Steel frame with ball bearings withstands 40 °C ambient conditions
- CSA and UL certifications confirm compliance with recognised safety standards
Specifications
| Brand | DAYTON |
|---|
Questions about this item
How do I wire the 230/460 V three-phase supply to the terminal box, and which step is often missed?
Connect L1, L2, L3 to the nine leads per the low-voltage (230 V) or high-voltage (460 V) diagram on the nameplate; the step often missed is bridging the correct leads for the chosen voltage before powering up.
Which component will need replacement first under continuous duty at 40 °C ambient?
The ball bearings are the primary wear item; they require periodic relubrication and eventual replacement after extended continuous-duty operation.
What thermal limit stops the motor first during sustained full-load operation?
The insulation is rated Class F with a 40 °C maximum ambient; sustained overload beyond the 1.15 service factor will reach the winding temperature limit before any other protection activates.
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