
( Brand: Leeson ), ( Manufacturer Part Number: 110143.00 ), ( Part Type: Hp Motor Frame )
The **Leeson 110143.00 Motor (C6T34NB1B)** is a robust, high-performance electric motor designed for demanding industrial applications where reliability, efficiency, and durability are paramount. Engineered to meet stringent performance standards, this ** horsepower (0.373 kW), three-phase induction motor** operates seamlessly across a broad voltage range of **208 230 volts single-phase or 460 volts three-phase**, making it versatile for integration into diverse power systems without the need for additional voltage conversion. Its **3450 RPM synchronous speed** ensures a balanced output, delivering consistent torque and rotational energy for machinery requiring precise, high-speed operation, such as conveyors, pumps, compressors, or automated manufacturing equipment.
Built with **D56 frame dimensions**, this motor adheres to NEMA standards, providing a compact yet sturdy construction that optimizes space utilization while maintaining structural integrity. The **C6T34NB1B** designation indicates a **totally enclosed, fan-cooled (TEFC) design**, which safeguards internal components from dust, moisture, and debris, extending the motor s operational lifespan in harsh or unregulated environments. This enclosure type also enhances safety by preventing accidental contact with live parts, making it ideal for applications in factories, warehouses, or outdoor settings where exposure to elements is a concern.
Under the hood, the motor features a **high-efficiency rotor and stator assembly**, engineered to minimize energy loss and maximize power output while reducing operational costs. Its **three-phase winding configuration** ensures smooth, vibration-free performance, even under heavy loads, contributing to longer bearing and winding life. The motor s **bearing arrangement** typically featuring sealed ball or sleeve bearings is designed to withstand continuous operation with minimal maintenance, reducing downtime and enhancing productivity. Additionally, the **NEMA premium efficiency rating** of this motor underscores its commitment to energy conservation, aligning with modern industrial sustainability goals.
For applications requiring precise control, the **110143.00 motor** can be paired with variable frequency drives (VFDs) to adjust speed and torque dynamically, further expanding its utility in processes where variable speed is critical. Its **IP55 protection rating** (when applicable) further reinforces its resilience against solid contaminants and low-pressure water jets, ensuring dependable performance in challenging conditions. Whether deployed in food processing plants, HVAC systems, or material handling equipment, this motor delivers a harmonious blend of power, efficiency, and longevity, making it a dependable workhorse for industries that demand precision and reliability.
### **Analysis of the Lessons 110143.00 Motor (C6T34NB1B) HP, 3-Phase, 3450 RPM**
#### **Pros**
1. **High Efficiency and Reliability** This motor is part of the **Lessons (now part of Emerson s Climate Technologies)** line, which is known for industrial-grade performance. The **C6 frame** is a robust design commonly used in commercial and light industrial applications, offering durability and consistent operation.
2. **Wide Voltage Range (208-230/460V)** The ability to operate across multiple voltage levels (single-phase 208-230V and three-phase 460V) makes this motor versatile for different electrical setups without requiring significant modifications.
3. **High RPM (3450 RPM)** The **3450 RPM** speed is ideal for applications requiring fast rotation, such as **blowers, pumps, compressors, or conveyor systems**. This speed is well-suited for **HVAC, refrigeration, and industrial machinery** where efficiency in airflow or fluid movement is critical.
4. **Compact and Standardized Frame (D56)** The **D56 frame** is a common industrial motor frame size, meaning it is widely available for repairs, replacements, or upgrades. This reduces downtime and makes maintenance easier.
5. **Three-Phase Capability** Three-phase motors are generally more efficient and powerful than single-phase alternatives, making them better for **continuous-duty applications** with higher load demands.
6. **Potential for Long Lifespan** With proper maintenance (lubrication, cooling, and load balancing), this motor can last **15-20 years or more**, especially in controlled environments.
7. **Compatibility with Variable Frequency Drives (VFDs)** If integrated with a VFD, this motor can be adjusted for **speed control**, further enhancing efficiency in applications like **fan systems or pumps**.
---
#### **Cons**
1. **Single-Phase Limitations (If Used on 208-230V)**
- While it supports single-phase operation, **three-phase motors are generally more efficient and powerful** for continuous use.
- If installed in a **single-phase system**, performance may be slightly reduced compared to three-phase operation at the same voltage.
- Starting a single-phase motor can be **less smooth** than a three-phase counterpart, potentially requiring additional components (like a capacitor start motor).
2. **Potential for Overheating in Heavy Loads**
- A ** HP motor** is designed for **light to moderate loads**. If subjected to **continuous high loads** (e.g., clogged filters, misaligned belts, or excessive resistance), it may **overheat or fail prematurely**.
- Proper **load matching** is essential to avoid strain.
3. **Maintenance Requirements**
- Like all motors, this one requires **regular lubrication (bearings), cooling checks, and vibration monitoring** to prevent wear.
- If not maintained, **bearing failure or winding insulation breakdown** can occur, leading to costly repairs.
4. **Noise and Vibration**
- Motors can generate **mechanical noise and vibration**, especially if the load is unbalanced or the motor is not properly aligned with the driven equipment.
- This may require **shock mounts or balancing** in sensitive applications.
5. **Cost of Replacement Parts**
- While the motor itself may be affordable, **replacement bearings, seals, or windings** can be expensive, particularly if the motor is older or no longer in production.
- **Lessons/Emerson parts may have lead times**, especially for specialized components.
6. **Not Ideal for Extreme Environments**
- Unless specified (e.g., **NEMA 4 or 4X enclosure**), this motor is **not inherently explosion-proof or fully weatherproof**.
- **High humidity, dust, or corrosive environments** may require additional protection (e.g., NEMA 12 or IP-rated enclosures).
7. **Potential for Misapplication**
- If used in an application **beyond its rated capacity** (e.g., continuous duty vs. intermittent), it may **overheat or burn out**.
- **Starting torque** may be insufficient for **high-inertia loads** (e.g., pumps with long pipes), requiring additional starters or soft starts.
---
### **Conclusion**
The **Lessons 110143.00 (C6T34NB1B) HP, 3450 RPM, 3-phase motor** is a **well-suited, efficient, and versatile motor** for **light to moderate industrial, HVAC, or commercial applications** where **fast rotation and reliability** are needed. Its **wide voltage compatibility, standard frame size, and high RPM** make it a practical choice for **blowers, small pumps, compressors, or conveyor systems**.
However, **care must be taken** to ensure:- The motor is **properly sized** for the intended load ( HP may be insufficient for heavy continuous use).
- It is **maintained regularly** to prevent overheating and mechanical failure.
- The **electrical system (single-phase vs. three-phase) matches its requirements** three-phase operation is preferred for optimal performance.
- The **operating environment** does not expose it to excessive dust, moisture, or extreme temperatures without proper protection.
If used correctly, this motor offers **good value for money** and **long-term reliability**. If misapplied or neglected, it may **fail prematurely**, leading to downtime and repair costs.
---
### **Recommendation**
**Buy this motor if:**You need a **reliable, high-RPM, three-phase motor** for **light to moderate industrial use** (e.g., **HVAC fans, small pumps, compressors, or conveyor belts**).
Your electrical system supports **208-230V or 460V three-phase** (preferred for best performance).
The motor will be **properly maintained** (lubrication, cooling, load balancing).
You have access to **replacement parts** (bearings, seals) if needed.
The application does **not require explosion-proof or extreme-environment protection**.
**Avoid this motor if:**You need a **high-torque, heavy-duty motor** (consider a **1 HP or higher** model).
Your system is **single-phase only** and the motor will run continuously under **high load** (performance may suffer).
The operating environment is **extremely harsh** (high dust, moisture, or corrosive conditions without proper enclosure).
You cannot ensure **proper installation and maintenance** (risk of premature failure).
**Alternative Considerations:**- If **three-phase is not available**, consider a **capacitor-start single-phase motor** of similar HP for better efficiency.
- For **higher torque or heavy loads**, a **1 HP or 1.5 HP motor** (e.g., **C6T34NB1C**) may be more appropriate.
- If **explosion-proof or weatherproof** operation is needed, look for a **NEMA 4 or IP-rated motor**.
**Final Verdict:**This motor is a **solid, cost-effective choice for many standard industrial applications** when used correctly. **Prioritize proper sizing, installation, and maintenance** to maximize its lifespan and performance.
26LBS AN 2 QTY 4/28/26. Leeson Motor 110143.00. USED, but in good working condition. REMANUFACTURED, rebuilt.
If you feel like the combined shipping price is not accurate. Some exceptions may apply. NEW, old inventory. Need to combine orders from different listings.
208-230/460V.