
( Brand: Worldwide Electric ), ( Manufacturer Part Number: AT1.5-18-56CB ), ( Part Type: 5hp Motor ), ( Rated Load: Hp ), ( Current Type: Universal ), ( Ac Phase: Three Phase ), ( Nominal Rated Input Voltage: 208 V ), ( Service Factor: 1.15 ), ( Insulation Class: F ), ( Actual Rated Input Voltage: 460 ), ( Base Rpm: 1725 ), ( Full Load Amps: 5.0 ), ( Country Of Origin: China ), ( Unit Type: Unit )
The **Electric AT1.5-18-56CB Fractional Horsepower Three-Phase Motor** is a high-performance, compact, and versatile electric motor designed to deliver reliable and efficient power for a wide range of industrial, commercial, and automation applications. Engineered with precision, this fractional horsepower motor operates at **1.5 horsepower (1.12 kW)** and is built to meet stringent performance standards while maintaining exceptional durability. The **AT1.5-18-56CB** designation indicates its specific frame size (18), pole configuration (56), and mounting style (CB, or "C-face" with a 1.5-inch shaft diameter), making it ideal for integration into conveyor systems, pumps, compressors, fans, and other machinery where space efficiency and consistent torque are critical. This three-phase induction motor features a robust **cast aluminum or die-cast housing**, ensuring resistance to corrosion and mechanical stress while minimizing vibration and noise during operation. Its **squirrel-cage rotor** design guarantees smooth acceleration, low maintenance requirements, and extended operational lifespan, even under demanding conditions.
The motor s **1.5 HP output** provides sufficient power for light to medium-duty applications, such as small-scale material handling, HVAC components, or automated manufacturing processes, where precise control and energy efficiency are essential. With a **three-phase AC input**, it operates seamlessly within standard industrial power grids, offering consistent performance across a wide voltage range (typically 200 240V or 380 480V, depending on regional standards). Its **56 pole configuration** ensures a balanced speed-torque curve, delivering optimal efficiency at the motor s rated speed while maintaining stability across varying loads. The **CB mounting style** allows for flexible installation, accommodating both horizontal and vertical setups with ease, and its compact frame size (18) makes it suitable for applications where space is limited without compromising performance.
Built with **high-quality insulation materials**, including Class B or F-rated windings, this motor is engineered to withstand elevated temperatures and prolonged operation, reducing the risk of overheating and extending its service life. The **bearing assembly** incorporates sealed or shielded ball or roller bearings, providing low-friction operation and minimizing the need for frequent lubrication or maintenance. Additionally, the motor s **NEMA or IEC-compliant design** ensures compatibility with standard industrial equipment and control systems, simplifying integration into existing infrastructure. Whether used in food processing, laboratory equipment, or light industrial automation, this fractional horsepower motor combines reliability, efficiency, and adaptability to meet the demands of modern industrial environments. Its robust construction, combined with a focus on energy efficiency, makes it a cost-effective solution for applications requiring dependable, long-term performance.
### **Pros and Cons of buying a Electric AT1.5-18-56CB Fractional Motor (3-Phase, 1.5 HP)**
#### **Pros:**1. **Compact and Lightweight Design** Fractional horsepower motors like this are smaller and easier to install in tight spaces compared to larger industrial motors.
2. **Energy Efficiency** Modern fractional motors, especially those with brushless or permanent magnet designs, tend to be more energy-efficient than older models.
3. **Low Maintenance** Since it s a fractional HP motor, it typically has fewer moving parts than larger motors, reducing wear and tear over time.
4. **Versatility** A 3-phase, 1.5 HP motor can be used in various applications, including industrial machinery, HVAC systems, pumps, and conveyors.
5. **Cost-Effective for Small Applications** For light-duty tasks, this motor may be more affordable than a larger, high-HP motor while still providing adequate power.
6. **Quiet Operation** Fractional motors are generally quieter than larger industrial motors, making them suitable for environments where noise is a concern.
7. **Easy to Replace** If the motor fails, replacing a fractional HP unit is often simpler and less expensive than dealing with a larger motor.
8. **Compatibility with Standard Drives** Many 3-phase fractional motors can be controlled with standard variable frequency drives (VFDs) if adjustable speed is needed.
#### **Cons:**1. **Limited Power Output** At only 1.5 HP, this motor may struggle with heavy loads or continuous high-demand applications, requiring frequent cycling or overheating.
2. **Lower Torque at Low Speeds** Fractional motors often have reduced torque at slower speeds, which can limit their effectiveness in applications requiring high starting torque.
3. **Dependence on Proper Voltage and Phase Balance** A 3-phase motor requires balanced power supply; imbalances can cause overheating or premature failure.
4. **Shorter Lifespan Under Heavy Loads** If used beyond its rated capacity, the motor may overheat and fail sooner than expected.
5. **Limited Availability of Spare Parts** Unlike larger motors, finding replacement parts for a fractional HP motor can sometimes be difficult, especially if the model is outdated.
6. **Higher Cost per Horsepower** While the upfront cost may be reasonable, the cost per horsepower is higher than larger motors, making it less efficient for high-power applications.
7. **Sensitivity to Environmental Conditions** Poor ventilation, dust, or moisture can reduce the motor s lifespan, requiring additional protection measures.
8. **Potential for Overheating in Continuous Operation** Unlike larger motors designed for continuous duty, a fractional HP motor may overheat if run continuously without adequate cooling.
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### **Conclusion**
The **AT1.5-18-56CB fractional motor (3-phase, 1.5 HP)** is a suitable choice for **light-duty, intermittent, or low-torque applications** where space and cost are concerns. It offers **efficiency, compactness, and ease of installation**, making it ideal for small industrial machines, pumps, fans, or conveyors where heavy continuous loads are not expected.
However, if the application requires **high torque, continuous heavy-duty operation, or frequent high-load cycles**, this motor may **overheat, underperform, or fail prematurely**. In such cases, a **larger HP motor (e.g., 3 HP or higher) or a motor with higher torque ratings** would be a better long-term investment.
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### **Recommendation**
- **Buy if:**- You need a **small, efficient motor** for **light to moderate-duty tasks** (e.g., small pumps, fans, conveyors, or HVAC components).
- The application involves **intermittent use** rather than continuous operation.
- You are working within **budget constraints** and the motor is compatible with your system s voltage and phase requirements.
- You can ensure **proper ventilation and protection** from dust/moisture to extend its lifespan.
- **Avoid if:**- The application demands **high starting torque, continuous heavy loads, or frequent high-power cycles**.
- You require **long-term reliability without maintenance** larger motors may be more durable in demanding conditions.
- You cannot guarantee **balanced 3-phase power supply**, as this can lead to premature failure.
- The motor will be **operated in harsh environments** (extreme temperatures, high humidity, or corrosive conditions) without additional protection.
- **Alternative Considerations:**- If the motor struggles with torque, consider a **higher HP motor (e.g., 2.0 3.0 HP)** or a **permanent magnet motor** for better efficiency.
- If cost is a concern but reliability is critical, a **reputable brand s motor** (e.g., TEFC or explosion-proof models) may justify a slightly higher upfront cost.
- If adjustable speed is needed, ensure compatibility with a **VFD (Variable Frequency Drive)** before purchase.
**Final Verdict:** This motor is a **good value for small, low-to-moderate demand applications** but may not be ideal for heavy-duty or continuous high-load use. Always verify **load requirements, environmental conditions, and power supply stability** before purchasing.
With an Insulation Class F rating, this motor is built to last, making it the ideal choice for industrial applications that require consistent power and durability. Buyers pay for return shipping. 1725 RPM designed for standard speed applications. 1.5 HP output for powering industrial equipment with ease.
Precision manufactured by WorldWide Electric Corporation. Let us know whats going on, and we ll provide you a return label. This robust 1.5HP motor operates at 1725 RPM, designed for three-phase applications 60Hz with voltage options of 208-230/460V. Some exceptions may apply.
Shipping: Shipping cost: UPS Calculated. Heavy duty industrial motor built for reliable performance. Class F insulation for enhanced thermal protection and durability. Engineered to withstand demanding environments, it features a 40 C temperature rating and 1.15 service factor, ensuring reliability efficiency.
Cash on Pickup.