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US MOTORS KA55PEK73518641 Emerson Motor 91A8301 1/4 1075RPM 208-230V 1PH

Ka55pek73518641 Us Motors Emerson 91a83 / 91a8301 Motor - 1/4 Hp 1075rpm 208-230v 1ph

( Brand: Us Motors ), ( Manufacturer Part Number: KA55PEK73518641 ), ( Model: 91A83 ), ( Part Type: Hp Motor ), ( Rated Load: Hp ), ( Current Type: Ac ), ( Nominal Rated Input Voltage: 230 V ), ( Ac Phase: Single Phase )

Review US MOTORS Emerson Motor 1/4 Hp 1075rpm 208-230v 1ph

The **Emerson 91A83 1/4 HP, 1075 RPM, Single-Phase, 208-230V AC Motor (Model #91A8301, Part #KA55PEK73518641)** is a robust, high-performance electric motor designed for reliable operation in a variety of industrial, commercial, and HVAC applications. Engineered with precision, this compact yet durable motor delivers consistent performance under moderate to heavy-duty conditions, making it an ideal choice for fans, pumps, compressors, conveyors, and other mechanical systems requiring a dependable power source. With a rated output of **1/4 horsepower (0.25 HP)**, it provides sufficient torque and rotational speed (1075 RPM) to efficiently drive connected equipment while maintaining energy efficiency. Built to operate seamlessly within a **208-230V single-phase AC voltage range**, this motor ensures compatibility with standard electrical systems found in most facilities, offering flexibility in installation and integration.

Constructed with Emerson s signature quality engineering, the **91A83** motor features a **squirrel-cage induction design**, which ensures smooth operation, minimal maintenance, and extended service life. Its **NEMA Premium efficiency rating** (or equivalent) optimizes energy consumption, reducing operational costs while delivering consistent performance. The motor s **cast iron end shields and housing** provide superior durability, shielding internal components from dust, moisture, and mechanical stress, while the **ball-bearing support system** ensures smooth, vibration-free operation even under continuous load. Additionally, the motor s **standard NEMA 345 or NEMA 346 frame** allows for easy mounting and alignment with compatible equipment, whether in vertical, horizontal, or custom configurations.

Safety and reliability are paramount in Emerson s design philosophy, and this motor incorporates **overload protection features** to prevent excessive strain on the system. Its **thermal overload relay** (if included or compatible with the application) helps safeguard against overheating, while the **sealed bearing system** minimizes lubrication requirements, reducing maintenance downtime. The motor s **IP54 (or higher) protection rating** (depending on the specific model variant) ensures resistance to dust and splashing water, making it suitable for both indoor and lightly exposed outdoor environments. Whether used in **HVAC systems, industrial machinery, or commercial ventilation**, this motor delivers the balance of power, efficiency, and longevity expected from Emerson s trusted brand.

For applications requiring precise control, the **91A83** can be paired with compatible variable frequency drives (VFDs) to adjust speed and torque dynamically, further enhancing its versatility. Its **standard shaft dimensions** (typically -inch or -inch diameter) ensure compatibility with a wide range of pulleys, belts, and couplings, allowing for seamless integration into existing mechanical setups. With Emerson s reputation for **long-term reliability and OEM-grade performance**, this motor is not just a power source but a dependable component that contributes to the overall efficiency and uptime of industrial processes. Whether in a small workshop, a large manufacturing plant, or a commercial building, the **Emerson 91A83 1/4 HP motor** delivers the performance, durability, and efficiency needed to keep operations running smoothly.

### **Pros and Cons of buying a Emerson 1/4 HP, 1075 RPM, 208-230V, Single-Phase Motor (Model: 91A83/91A8301)**

#### **Pros:**

1. **Reliable Brand Reputation** Emerson is a well-known manufacturer of industrial motors, offering durable and dependable products for commercial and light-duty applications.

2. **Standard Voltage Range (208-230V)** Compatible with most single-phase electrical systems in North America and parts of Europe, reducing compatibility issues.

3. **1/4 HP Capacity** Suitable for small to medium-sized applications such as fans, pumps, compressors, and conveyors, providing adequate power for typical tasks.

4. **1075 RPM Speed** A moderate speed that balances efficiency and torque, making it versatile for applications where high-speed motors may be unnecessary.

5. **Single-Phase Design** Easier to install and operate in residential or small commercial settings where three-phase power may not be available.

6. **Potential for Long Lifespan** If properly maintained, Emerson motors are known for lasting years, especially in controlled environments.

7. **Aftermarket Availability** Parts and replacements are widely accessible due to the motor s popularity and widespread use.

8. **Energy Efficiency** Modern Emerson motors are designed to operate efficiently, reducing energy consumption compared to older models.

#### **Cons:**

1. **Age of the Model** The model number (91A83/91A8301) suggests it may be an older design, potentially lacking the latest energy-saving or smart features found in newer motors.

2. **Limited Smart Features** Unlike newer motors with variable frequency drives (VFDs) or digital monitoring, this motor lacks advanced control options.

3. **Potential for Higher Maintenance** Older motors may require more frequent maintenance, such as bearing lubrication and brush replacement (if applicable).

4. **Noise and Vibration** Some users report that older single-phase motors can be noisier and vibrate more than newer, high-efficiency models.

5. **Energy Costs** While efficient for its class, it may consume more power than a modern, high-efficiency motor over time.

6. **Compatibility with Modern Systems** If integrated into a smart or automated system, this motor may not interface seamlessly with newer control technologies.

7. **Potential for Higher Initial Cost** Depending on the market, buying an older model may not offer the best value compared to newer, more efficient alternatives.

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### **Conclusion:**

The Emerson 1/4 HP, 1075 RPM, 208-230V single-phase motor is a solid, dependable choice for basic applications where reliability and compatibility are priorities. It excels in environments where cost-effectiveness and ease of installation matter more than cutting-edge efficiency or smart features. However, if energy savings, longevity, or integration with modern systems are critical, a newer high-efficiency motor may be a better long-term investment.

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### **Recommendation:** - **Buy if:**

- You need a **reliable, off-the-shelf motor** for a **small-scale application** (e.g., a workshop, garage, or light-duty commercial use).

- You require **immediate availability** and don t need advanced features.

- Budget constraints make newer models impractical.

- **Consider an alternative if:**

- You want **better energy efficiency** (look for NEMA Premium or IE3-rated motors).

- Your application requires **long-term cost savings** (newer motors reduce operational expenses).

- You need **smart control or VFD compatibility** (modern motors with digital interfaces are more versatile).

- You plan to use it in a **high-duty or continuous operation** environment (where wear and tear could be higher).

For most **new installations or high-efficiency needs**, exploring a **NEMA Premium or IE3-rated motor** (such as those from Emerson s newer lines or competitors like ABB, Siemens, or Reliance) would be a wiser long-term choice. However, if this motor fits your current needs perfectly and is priced competitively, it remains a **practical and dependable option**.

Details:

This Item Is like-new. I installed it on my AC for 2 weeks while was waiting new unit.

part #: ka55pek73518641 price

  • $200.00

specifications oelemot:

  • brand: Us Motors
  • mpn: Ka55pek73518641
  • model: 91a83
  • part type: Hp Motor
  • rated load: Hp
  • current type: Ac
  • nominal rated input voltage: 230 V
  • ac phase: Single Phase

general oelemot:

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

offer oelemot:

  • sold: 0
  • availability: In Stock
  • quantity: 1
  • started: February 24, 2026
  • options: Ship-to-home

payments oelemot:

  • other
  • credit card: Mastercard
  • wallet: Paypal

shipping oelemot:

  • class: Standard
  • carrier: FedEx
  • service: FedEx Ground / FedEx Home Delivery
  • type: Calculated
  • cost: $23.32
  • transit: 3-9 Days

returns oelemot:

  • policy: No Returns

seller oelemot:

  • city: Phoenix, Arizona
  • # reviews: 194
  • rating: 100.0%
part type: hp motor, rated load: hp, current type: ac, nominal rated input voltage: 230 v, ac phase: single phase,
category: business & industrial > industrial automation motion controls > electric > general purpose, sku: 20560123966257772,
Us Motors KA55PEK73518641 Is Similar To:
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1 offer $200.00 USD
  • New. Offer #1 priced at $200.00 + $7.26 shipping estimate = $207.26* total. Condition: NEW 1/4 HP, 1075RPM, 208-230V, 1PH.+$7.26 shipping

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