DAYTON 2N101K Motor 1/4HP 1725RPM 3PH 781

( Brand: Dayton ), ( Manufacturer Part Number: 2N101K ), ( Part Type: Motor ), ( Battery Included: No )

Review DAYTON 1/4hp 1725rpm 3ph Motor -item#781

The **Dayton 2N101K 1/4 Horsepower, 1725 RPM, Three-Phase Induction Motor (Model 781)** is a robust, compact, and high-performance electric motor designed for industrial, commercial, and specialized applications requiring reliable, efficient, and durable power transmission. Engineered with precision, this motor delivers a consistent output of **1/4 horsepower (0.25 hp)** at a nominal speed of **1725 revolutions per minute (RPM)**, making it ideal for applications where moderate torque and steady rotational speed are essential. Built with a **three-phase AC induction design**, the motor ensures smooth operation and energy efficiency, minimizing power loss while maximizing performance across a wide range of loads.

Constructed with high-quality materials, the Dayton 2N101K features a **NEMA Premium Efficiency frame (Frame 56C)**, which provides a balanced and compact footprint while maintaining structural integrity under continuous operation. The motor s **squirrel-cage rotor** ensures robust starting torque and stable performance, even under varying load conditions, while its **closed, drip-proof (DIP) enclosure** protects internal components from dust, debris, and light splashes, making it suitable for both indoor and outdoor environments where protection against environmental contaminants is necessary. The **Class B insulation system** (130 C rise) enhances thermal performance, extending the motor s operational lifespan and reducing the risk of overheating in demanding applications.

This motor is equipped with a **standard 1/4-inch shaft**, allowing for easy integration with belts, pulleys, gears, or direct-drive mechanisms, while its **bearing assembly** is designed for low friction and minimal wear, ensuring prolonged reliability. The Dayton 2N101K operates efficiently at a **nominal voltage of 208/230V, 3-phase, 60Hz**, making it compatible with most standard industrial power systems. Its **full-load current rating** is carefully optimized to balance performance with energy consumption, contributing to cost-effective operation while maintaining high efficiency standards.

Whether used in **HVAC systems, conveyor belts, small machinery, pumps, or automated equipment**, this motor provides a dependable power source that combines **durability, efficiency, and ease of maintenance**. Its **low-noise operation** and **vibration-dampening design** further contribute to a quieter, smoother workflow, reducing operational disruptions in sensitive environments. With a **nameplate rating of 781**, this motor adheres to strict industry standards, ensuring compliance with safety regulations and performance expectations. Overall, the Dayton 2N101K is a versatile, high-quality motor that delivers consistent power, longevity, and operational reliability for a wide array of industrial and commercial applications.

### **Pros and Cons of buying a Dayton 2N101K (1/4 HP, 3-Phase, 1725 RPM, 781 Series) Motor**

1. **Reliability and Durability** Dayton motors are known for their robust construction, often featuring high-quality materials like die-cast aluminum or steel housings. The 781 series is particularly well-regarded for industrial applications, offering long service life with proper maintenance.

2. **Efficiency** As a 1/4 HP motor, it is designed for moderate power applications, providing a good balance between performance and energy consumption. The 3-phase design ensures consistent torque and smoother operation compared to single-phase motors.

3. **Compact and Lightweight** At 1/4 HP, it is suitable for smaller machinery, conveyor systems, or auxiliary equipment where space is limited. Its lightweight nature makes it easier to install in tight or elevated locations.

4. **Versatility** The 1725 RPM speed is common in industrial settings, making it compatible with a wide range of belts, pulleys, and gear reductions. It can be used in pumps, fans, compressors, and other mechanical applications.

5. **Cost-Effective for Small Applications** For low-power needs, this motor is often more affordable than larger industrial-grade motors while still delivering reliable performance.

6. **Easy Maintenance** Many Dayton motors feature accessible components, such as bearings that can be replaced without major disassembly. The sealed design in some models helps prevent dust and debris ingress.

7. **Compatibility with Variable Frequency Drives (VFDs)** If paired with a VFD, this motor can offer adjustable speed control, extending its usefulness in applications requiring variable torque or speed.

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1. **Limited Power Output** At only 1/4 HP, it is not suitable for heavy-duty or high-torque applications. Overloading can lead to premature failure or overheating.

2. **3-Phase Dependency** Requires a stable 3-phase power supply (typically 208V, 230V, or 460V, depending on the model). Single-phase power sources will not work without additional equipment (e.g., a phase converter), adding complexity and cost.

3. **Noise and Vibration** Like many small motors, it may produce noticeable noise and vibration, especially if not properly balanced or if the load is misaligned.

4. **Sensitivity to Environmental Conditions** Exposure to extreme temperatures, humidity, or corrosive environments (unless specified as NEMA 4 or 12) can reduce lifespan. The standard NEMA 1 enclosure offers basic protection but is not ideal for harsh settings.

5. **Limited Availability of Spare Parts** While Dayton is a reputable brand, finding replacement parts (e.g., bearings, windings) may be challenging compared to more widely stocked motors.

6. **Potential for Overheating in Continuous Use** If operated at or near maximum capacity for extended periods without adequate cooling, the motor may overheat, reducing efficiency or causing failure.

7. **Higher Initial Cost Than Single-Phase Alternatives** While still affordable for its class, a 3-phase motor will generally cost more upfront than a comparable single-phase motor (e.g., a 1/4 HP single-phase induction motor).

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The **Dayton 2N101K (1/4 HP, 3-phase, 1725 RPM)** is a **practical choice for light-to-medium industrial applications** where space efficiency, reliability, and 3-phase compatibility are priorities. It excels in conveyor systems, small pumps, fans, or auxiliary machinery where consistent torque and moderate power are needed. However, it is **not ideal for high-torque, single-phase, or heavy-duty applications** due to its limitations in power output and power source requirements.

For **small workshops, hobbyists, or applications with limited power demands**, this motor offers a **good balance of performance and affordability**. If the application involves **harsh environments, high loads, or single-phase power**, alternative motors (e.g., NEMA 4 enclosures, larger HP ratings, or single-phase equivalents) should be considered.

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- You need a **reliable, compact 3-phase motor** for a **light-duty industrial or mechanical application** (e.g., conveyor belts, small pumps, or auxiliary equipment).

- Your setup already has **3-phase power** (208V, 230V, or 460V).

- You require **moderate speed (1725 RPM)** and can accommodate its **1/4 HP limitations**.

- You prioritize **brand reputation** and **ease of maintenance** over maximum power output.

- Your application requires **high torque, continuous heavy loads, or single-phase power**.

- You operate in **extreme environments** (high dust, moisture, or temperature) without proper enclosure upgrades.

- You need **adjustable speed control** without a VFD, as the motor s fixed speed may not be flexible enough.

- You cannot justify the **higher cost** compared to single-phase alternatives for your specific needs.

- For **single-phase applications**, look at **1/4 HP single-phase induction motors** (e.g., from Reliance, TECO, or Dayton s own single-phase line).

- For **higher torque or harsh environments**, consider **NEMA 4 or explosion-proof enclosures** (e.g., Dayton 2N101K with upgraded housing).

- For **adjustable speed needs**, pair this motor with a **VFD-compatible 3-phase motor** (e.g., Dayton 2N102K series).

- For **larger applications**, evaluate **1/2 HP or 3/4 HP 3-phase motors** (e.g., Dayton 2N102K or 2N103K) if your load requires more power.

Details:

DAYTON 2N101K 1/4HP 1725RPM 3PH MOTOR -ITEM#781 - USED FOR TESTING.

part #: 2n101k price

• $240.00

specifications oelemot:

• brand: Dayton
• mpn: 2n101k
• part type: Motor
• battery included: No

general oelemot:

• condition: Used
• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors

shipping oelemot:

• service: UPS Ground, FedEx Ground / FedEx Home Delivery, FedEx Ground Economy, USPS Ground Advantage
• class: Standard, Economy
• cost: $26.11
• transit: 4-7 Days
• type: Calculated
• carrier: UPS, FedEx, USPS

payments oelemot:

• wallet: Apple-pay
• credit card: Discover
• other

returns oelemot:

• policy: No Returns

seller oelemot:

• # reviews: 133
• rating: 100.0%
• city: Vancouver, Washington

offer oelemot:

• options: Ship-to-home
• started: April 16, 2026
• availability: In Stock
• quantity: 1
• sold: 0

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