LEESON Electric Motor Rpm A6P11NR1G 691720009840 111321.00 56HZ 1/2 1075 1-PH 115/230

( Brand: Leeson ), ( Manufacturer Part Number: 111321 ), ( Model: A6P11NR1G ), ( Part Type: Hp Motor ), ( Rated Load: Hp ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Teao ), ( Shaft Type: Keyed ), ( Ac Motor Type: Induction/asynchronous ), ( Shaft Diameter: 5/8 In ), ( Insulation Class: B ), ( Mounting Type: Base-mounted, Foot-mounted ), ( Reversible/non-reversible: Reversible ), ( Current Type: Ac ), ( Ip Rating: Ip43 ), ( Service Factor: 1.00 ), ( Nominal Rated Input Voltage: 110 V, 115 V, 120 V, 220 V, 230 V, 240 V ), ( Nema Frame Suffix: Hz ), ( Ac Phase: Single Phase ), ( UPC: 691720009840 )

Review LEESON Electric Motor 56hz 1/2 Hp Rpm 1-ph 115/230 Parts

The **Leeson 111321 (111321.00) Electric Motor** is a robust, high-performance single-phase induction motor designed for reliable and efficient operation in a wide range of industrial, commercial, and residential applications. Engineered with precision, this motor delivers a consistent output of ** horsepower (0.373 kW)** at a nominal speed of **1,075 RPM**, making it ideal for applications requiring moderate torque and steady performance, such as small conveyors, pumps, compressors, fans, and light-duty machinery. Operating at a standard frequency of **56Hz**, this motor is well-suited for regions where this frequency is the primary electrical standard, ensuring compatibility with local power grids without the need for additional frequency converters.

Constructed with durability in mind, the Leeson 111321 features a **1-phase, 115/230-volt** voltage rating, allowing for flexible installation in both standard and dual-voltage setups. This versatility simplifies integration into existing electrical systems, reducing the need for additional transformers or voltage regulators. The motor s compact yet sturdy design incorporates high-quality materials, including a robust **cast iron end shields** and a **slotted laminated core**, which minimize energy loss through hysteresis and eddy currents while maximizing efficiency. The **drip-proof (DP) or totally enclosed fan-cooled (TEFC) enclosure** (depending on the specific variant) ensures protection against dust, moisture, and debris, making it suitable for both indoor and outdoor environments where environmental exposure is a concern.

Performance-wise, the Leeson 111321 excels with its **high starting torque** and **smooth operation**, thanks to its optimized winding configuration and efficient magnetic circuit design. The motor s **ball-bearing support system** provides low-friction operation, reducing wear and extending the lifespan of critical components. Additionally, its **low noise and vibration levels** contribute to quieter operation, which is particularly advantageous in applications where noise reduction is a priority, such as in office equipment, HVAC systems, or sensitive manufacturing processes.

Maintenance is simplified with the Leeson 111321 s **accessible design**, featuring easy-to-reach terminals and a straightforward wiring configuration. The motor s **NEMA Premium efficiency standards** (or equivalent) ensure that it operates at peak performance while minimizing energy consumption, leading to lower operational costs over time. Whether used in a small workshop, a commercial building, or an automated system, this motor delivers a reliable, long-lasting power solution that balances performance, efficiency, and ease of use.

For applications requiring a balance of power and efficiency without excessive complexity, the Leeson 111321 is an excellent choice a dependable workhorse built to meet the demands of modern and traditional machinery alike.

### **Pros and Cons of buying a 1/2 HP, 115/230V, 56Hz, 1-Phase Electric Motor (Model: 111321)**

1. **Standard Specifications** The motor operates at **115/230V**, making it compatible with common household and industrial electrical systems in North America and some other regions. The **56Hz** frequency is standard in many countries, ensuring reliable performance.

2. **Reliable Power Output** With **1/2 horsepower (0.373 kW)**, this motor is suitable for light to moderate-duty applications such as small pumps, fans, compressors, or machinery in workshops, garages, or small businesses.

3. **Single-Phase Design** Being **1-phase**, it is easier to install and requires simpler wiring compared to 3-phase motors, reducing installation complexity and cost.

4. **Common RPM (1075 RPM)** The **1075 RPM** speed is typical for fractional horsepower motors, making it a good match for many standard mechanical loads without requiring additional gearing.

5. **Potential Cost-Effectiveness** If sourced from a reputable supplier (e.g., industrial distributors, online marketplaces, or surplus auctions), this motor may be **affordable** compared to custom or branded alternatives.

- Small **pumps** (e.g., water, oil, or air)

- **Fans** (HVAC, ventilation, cooling)

- **Compressors** (air tools, refrigeration)

- **Conveyor systems** (light-duty)

- **Appliances** (garage door openers, power tools)

7. **Easy Replacement** If an existing motor fails, this model may serve as a **direct replacement** for similar 1/2 HP, 1-phase motors in older equipment.

8. **Durable Construction** Many standard industrial motors are built to last **10,000 hours** under normal conditions, offering long-term reliability if properly maintained.

---

1. **Potential Age or Condition Issues**

- If purchased from a **second-hand or surplus source**, the motor may have **wear and tear**, rust, or internal damage (e.g., worn bearings, damaged windings).

- Without a **test run or inspection**, hidden defects (e.g., short circuits, insulation breakdown) may not be immediately apparent.

2. **Compatibility Risks**

- **Voltage mismatch** (if not properly wired for 115V or 230V) can damage the motor.

- **Frequency mismatch** (if used in a 60Hz system outside the U.S., performance may vary slightly).

- **Mechanical fit** The shaft size, mounting holes, or coupling dimensions may not match the application, requiring additional adapters.

3. **Lack of Warranty or Support**

- If bought from an **unverified seller**, there may be **no warranty**, making repairs or replacements difficult.

- No customer support for troubleshooting or replacements.

4. **Energy Efficiency Concerns**

- Older or generic motors may have **lower efficiency** (e.g.,

- If used in a **high-run-time application**, this could increase operational costs.

5. **Limited Performance for Heavy Loads**

- At **1/2 HP**, this motor is **not suitable for continuous heavy-duty use** (e.g., large pumps, high-torque machinery).

- May **overheat or stall** if the load exceeds its rated capacity.

6. **Potential for Counterfeit or Low-Quality Units**

- If purchased from **untrusted online sellers**, there is a risk of receiving a **fake or substandard motor** that fails prematurely.

- Always verify the **manufacturer s reputation** and **product authenticity**.

7. **Maintenance Requirements**

- Like all motors, it requires **regular lubrication (bearings), cooling (if enclosed), and voltage checks** to prevent failure.

- Poor maintenance can **reduce lifespan significantly**.

8. **No Brand-Specific Support**

- If it s a **generic or no-name motor**, troubleshooting may be harder compared to branded motors (e.g., Siemens, WEG, TECO, Reliance).

---

### **Conclusion**

This **1/2 HP, 115/230V, 56Hz, 1-phase electric motor** is a **practical and cost-effective choice** for **light to moderate-duty applications** where compatibility with standard electrical systems is required. It offers **reliability, ease of installation, and versatility** for small machinery, pumps, fans, and compressors.

However, **potential downsides** such as **lack of warranty, risk of hidden defects, energy inefficiency, and compatibility issues** must be carefully considered. If purchasing **new or from a trusted supplier**, the pros outweigh the cons. If buying **used or from an unverified source**, additional **testing and inspection** are strongly recommended.

---

### **Recommendation**

- **Purchase from a reputable industrial distributor** (e.g., Grainger, McMaster-Carr, local electrical supply stores).

- **Check for NEMA or IEC compliance** to ensure proper sizing and efficiency.

- **Consider a slightly higher efficiency model** (e.g., NEMA Premium) if energy savings are a priority.

- **Inspect thoroughly** for rust, burnt smells, unusual noises, or overheating during a test run.

- **Test voltage and current draw** to ensure it operates within specifications.

- **Verify mechanical fit** (shaft size, mounting, coupling) before installation.

- **Buy from a trusted source** (e.g., industrial auctions, verified eBay sellers, or local machine shops).

- **Avoid generic motors** opt for **branded, high-efficiency models** with warranties.

- **Consult an electrician or mechanical engineer** to ensure proper sizing and installation.

- If the motor is **only for a temporary or low-risk application**, the **cost savings** may justify the purchase, provided due diligence is done.

- **Pair with a surge protector** to prevent electrical damage.

This motor is a **good general-purpose choice** for **small-scale, non-critical uses** where cost is a factor. However, **for high-reliability or heavy-duty applications, investing in a higher-quality, warranted motor is strongly advised.** Always **prioritize quality, compatibility, and safety** over cost alone.

Details:

This is a new motor but damaged on the top. Capacitor and the capacitor cover are smashed. Capacitor will need to be replaced and the cover fixed or.

part #: 111321 prices

• $150.00-$483.28

specifications oelemot:

• brand: Leeson
• mpn: 111321
• model: A6p11nr1g
• part type: Hp Motor
• rated load: Hp
• ac frequency rating: 60 Hz
• enclosure type: Teao
• shaft type: Keyed
• ac motor type: Induction/asynchronous
• shaft diameter: 5/8 In
• insulation class: B
• mounting type: Base-mounted, Foot-mounted
• reversible/non-reversible: Reversible
• current type: Ac
• ip rating: Ip43
• service factor: 1.00
• nominal rated input voltage: 110 V, 115 V, 120 V, 220 V, 230 V, 240 V
• nema frame suffix: Hz
• ac phase: Single Phase
• upc: 691720009840

payments oelemot:

• credit card: Diners-club
• other
• wallet: Paypal

offer oelemot:

• options: Ship-to-home
• quantity: 1
• sold: 0
• started: February 26, 2026
• availability: In Stock

general oelemot:

• condition: For parts or not working
• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors

shipping oelemot:

• transit: 4-7 Days
• type: Calculated
• cost: $0.00
• service: USPS Ground Advantage
• class: Standard
• carrier: USPS

seller oelemot:

• # reviews: 1789
• city: Kansas City, Kansas
• rating: 100.0%

returns oelemot:

• policy: Returns Accepted
• time: 30 Days
• paid by: Buyer
• method: Money back

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