SMEM 80A4 Motor Frame 3PH .75 0.55 1450RPM 220/380V

( Brand: Smem ), ( Manufacturer Part Number: 80A4 ), ( Part Type: Hp Motor Frame ), ( Ac Frequency Rating: 50 Hz ), ( Rated Load: Hp ), ( Shaft Type: Keyed ), ( Reversible/non-reversible: Reversible ), ( Current Type: Ac ), ( Unit Type: Unit ), ( Service Factor: 1.65 ), ( Nominal Rated Input Voltage: 380 V, 220 V )

Review SMEM Motor 3ph .75 Hp 0.55 Kw 1450rpm 220/380v 50 Hz Frame Used

The **SMEM 80A4 3-phase 75 horsepower electric motor** is a robust, high-performance industrial drive engineered to deliver reliable power and efficiency in demanding applications. Built to the highest standards of engineering precision, this motor operates at a nominal speed of **1,450 revolutions per minute (RPM)**, making it ideal for a wide range of machinery, including conveyors, pumps, compressors, and heavy-duty industrial equipment. With a **75 horsepower (hp) output**, it provides substantial torque and consistent performance under sustained loads, ensuring optimal productivity in manufacturing, mining, and processing environments.

Designed with a **0.55 power factor**, this motor maximizes energy efficiency while minimizing reactive power, reducing operational costs and lowering the overall electrical demand on the facility. The **220/380-volt (V) dual-voltage capability** allows for flexible integration into various electrical systems, accommodating different voltage configurations without requiring additional modifications. This versatility ensures seamless compatibility with existing infrastructure, whether in standard or high-voltage setups.

Constructed within a **Frame 80 (NEMA 80)** housing, this motor features a sturdy, durable design capable of withstanding harsh operating conditions, including temperature fluctuations, dust, and moisture. The robust enclosure provides protection against environmental contaminants, ensuring prolonged operational life and reduced maintenance requirements. The **50Hz frequency rating** aligns with global industrial standards, making it suitable for deployment in regions where this frequency is prevalent.

The **SMEM 80A4** incorporates advanced bearing systems and high-quality insulation materials, enhancing reliability and reducing the risk of premature wear or failure. Its efficient cooling mechanism, likely featuring axial or radial ventilation, helps maintain optimal operating temperatures, further extending the motor s lifespan. Additionally, the motor s compact yet robust construction allows for easy installation and integration into existing mechanical systems, minimizing downtime during setup.

Whether deployed in continuous operation or intermittent duty cycles, this motor delivers consistent power delivery, minimal vibration, and low noise levels, contributing to a smoother and more efficient workflow. Its compatibility with standard control systems and variable frequency drives (VFDs) also enables precise speed and torque adjustments, making it adaptable to applications requiring variable operational parameters. Overall, the **SMEM 80A4 3-phase 75 hp motor** represents a dependable, high-performance solution for industries seeking durability, efficiency, and long-term reliability in their power generation needs.

### **Pros and Cons of buying a SEM 80A4 3-Phase 75 HP Motor (0.55 PF, 1450 RPM, 220/380V, Frame 80)**

1. **High Power Output (75 HP)** Suitable for heavy-duty applications such as industrial machinery, pumps, compressors, and conveyors, providing sufficient torque for demanding workloads.

2. **Efficient Power Factor (0.55)** While not the highest, it is a standard value for industrial motors, meaning it draws reasonable current for its power output. However, power factor correction may still be recommended for optimal efficiency.

3. **Dual Voltage (220V/380V)** Offers flexibility in installation depending on the electrical infrastructure available, making it adaptable to different regions or voltage requirements.

4. **Standard Frame Size (80)** A widely available frame size, ensuring easy availability of spare parts, replacements, and compatibility with standard industrial equipment.

5. **Reliable Brand (SEM)** SEM (Siemens or a compatible manufacturer) is a reputable name in industrial motors, suggesting good build quality, durability, and after-sales support.

6. **Synchronous Speed (1450 RPM)** Matches common industrial applications, ensuring compatibility with standard gearboxes, belts, and mechanical systems without excessive speed adjustments.

7. **Three-Phase Design** More efficient and stable than single-phase motors for high-power applications, reducing energy loss and providing smoother operation.

8. **Potential for Long Lifespan** With proper maintenance, industrial motors like this can last decades, making it a cost-effective long-term investment.

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1. **Low Power Factor (0.55)** Indicates that the motor is not highly efficient in terms of power utilization. A lower power factor means higher current draw, which can increase energy costs and may require additional capacitors for correction.

2. **Higher Initial Cost** As a 75 HP motor, it is a premium investment compared to smaller motors. The cost may be prohibitive for small businesses or applications that do not require such high power.

3. **Maintenance Requirements** Industrial motors require regular maintenance, including lubrication, alignment checks, and bearing inspections. Neglect can lead to premature failure and costly downtime.

4. **Space and Installation Constraints** A 75 HP motor is physically large and heavy (Frame 80), requiring adequate space, proper grounding, and possibly specialized mounting or foundation support.

5. **Energy Consumption** While efficient for its class, it will still consume significant power, which may contribute to higher electricity bills, especially in applications running continuously.

6. **Potential for Overkill** If the application does not consistently require 75 HP (e.g., intermittent or light-duty use), the motor may be overpowered, leading to inefficiencies and unnecessary wear.

7. **Compatibility Issues** If the motor is not perfectly matched to the load (e.g., incorrect voltage, frequency, or mechanical coupling), it may experience overheating, reduced efficiency, or premature failure.

8. **Dependence on Voltage Stability** Fluctuations in voltage (especially in 3-phase systems) can affect motor performance, leading to reduced efficiency or damage over time.

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The **SEM 80A4 75 HP 3-phase motor** is a robust, high-performance industrial motor well-suited for heavy-duty applications requiring reliable power output. Its dual-voltage capability, standard frame size, and reputable brand make it a practical choice for many industrial settings. However, its **low power factor, high initial cost, and maintenance needs** must be carefully considered.

If the application demands consistent high power (e.g., continuous operation in manufacturing, mining, or large-scale machinery), this motor is an excellent investment. However, if the load is intermittent or the power requirements are lower, a smaller motor (e.g., 50-60 HP) might be more cost-effective.

- Proper voltage and phase balance.

- Correct sizing relative to the load.

- Regular maintenance (lubrication, cooling checks, alignment).

- Possible power factor correction if energy efficiency is a priority.

- You need a **high-power, reliable 3-phase motor** for continuous heavy-duty use.

- Your electrical system supports **220/380V 50Hz**.

- You have the **space and budget** for a 75 HP unit.

- Maintenance can be consistently performed.

- The application does not require **full 75 HP** capacity (opt for a smaller motor).

- Energy efficiency is critical (consider a motor with a higher power factor or variable frequency drive).

- Budget constraints exist (a slightly lower HP motor may suffice).

- Voltage stability is unreliable (may require additional protection).

For best results, consult an electrical engineer or motor specialist to confirm compatibility with your specific load and system requirements.

Details:

Condition is Used. Shipped with UPS Ground. SMEM MOTOR 80A4 3PH .75 HP 0.55 KW 1450RPM 220/380V 50 hz FRAME B - USED.

part #: 80a4 prices

• $65.00-$90.00

specifications oelemot:

• brand: Smem
• mpn: 80a4
• part type: Hp Motor Frame
• ac frequency rating: 50 Hz
• rated load: Hp
• shaft type: Keyed
• reversible/non-reversible: Reversible
• current type: Ac
• unit type: Unit
• service factor: 1.65
• nominal rated input voltage: 380 V, 220 V

returns oelemot:

• method: Money back
• time: 60 Days
• paid by: Seller
• policy: Returns Accepted

offer oelemot:

• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0
• started: April 21, 2026

seller oelemot:

• rating: 99.6%
• city: Fairfax, Vermont
• # reviews: 4503

shipping oelemot:

• type: Calculated
• transit: 3-8 Days
• carrier: UPS, FedEx
• class: Standard, One-day
• service: UPS Ground, FedEx Standard Overnight
• cost: $86.29

payments oelemot:

• other
• wallet: Paypal
• credit card: Discover

general oelemot:

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