WESTINGHOUSE S1178671 Rpm Single Phase Induction Motor 56GE 1/4 115V 1725

( Brand: Westinghouse ), ( Manufacturer Part Number: S1178671 ), ( Model: 56GE ), ( Part Type: Hp Motor ), ( Actual Rated Input Voltage: 115 V ), ( Full Load Amps: 4.9 ), ( Rated Load: Hp ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Open ), ( Base Rpm: 1725 ), ( Ac Motor Type: Induction/asynchronous ), ( Mounting Type: Base-mounted ), ( Current Type: Ac ), ( Ac Phase: Single Phase )

Review WESTINGHOUSE 1/4 Hp 115v Rpm Single Phase Induction Motor

The **Westinghouse S1178671 1/4 Horsepower, 115V, 1725 RPM Single-Phase Induction Motor** is a robust and reliable electric motor engineered for precision performance in a wide range of industrial, commercial, and residential applications. Part of Westinghouse s trusted line of high-quality motors, this compact yet durable unit delivers consistent power with minimal maintenance, making it an ideal choice for applications requiring dependable, efficient operation. With a **1/4 horsepower (0.25 HP) output**, it provides sufficient torque and rotational force for tasks such as driving small conveyors, pumps, fans, compressors, and other light-duty machinery without excessive energy consumption. The motor operates at a standard **115V single-phase voltage**, ensuring compatibility with most household and commercial electrical systems, while its **1725 RPM synchronous speed** ensures smooth, steady performance for applications where moderate speed is required.

Designed with **NEMA Premium efficiency standards**, this motor maximizes energy efficiency, reducing operational costs while minimizing heat generation and wear over time. Its **56C frame size** strikes a balance between compactness and structural integrity, allowing for easy integration into tight spaces without compromising on performance. The **single-phase induction design** ensures reliability and simplicity, as it eliminates the need for complex starting mechanisms often found in multi-phase motors, making it a cost-effective solution for applications where direct-on-line (DOL) starting is feasible. Built with high-grade materials, including reinforced windings and a sturdy end bell construction, this motor is engineered to withstand frequent start-stop cycles, voltage fluctuations, and moderate environmental conditions, providing long-term durability in both indoor and protected outdoor settings.

The **1/4 HP rating** makes this motor well-suited for applications such as small HVAC systems, air purifiers, water pumps, garage door openers, and automated machinery where a balance of power and efficiency is essential. Its **1725 RPM speed** is particularly advantageous for applications requiring moderate airflow or fluid movement, such as ventilation systems, exhaust fans, or light-duty material handling equipment. The motor s **single-phase induction design** also contributes to its quiet operation, reducing noise levels in sensitive environments. Whether used in commercial kitchens, workshops, or residential settings, this Westinghouse motor offers a dependable power source that combines performance, efficiency, and longevity, making it a versatile and practical choice for a variety of mechanical applications.

**Pros and Cons of buying a Westinghouse S1178671 (1/4 HP, 115V, 1725 RPM, Single-Phase Induction Motor, 56 Frame)**

### **Pros**

1. **Reliability and Brand Reputation** Westinghouse is a well-established manufacturer known for producing durable, high-quality electric motors. Their motors are widely used in industrial, commercial, and residential applications, which suggests a track record of reliability.

2. **Standard Frame Size (56C)** The 56 frame is a common size, meaning replacement parts, bearings, and accessories are widely available. This makes maintenance and repairs easier and more cost-effective over the long term.

3. **Single-Phase Design** This motor is designed for standard single-phase power (115V), which is commonly found in homes, small workshops, and many commercial settings. It avoids the need for specialized three-phase wiring, making installation simpler in non-industrial environments.

4. **1/4 Horsepower Capacity** At 1/4 HP, this motor is suitable for light-duty applications such as small fans, pumps, compressors, conveyors, or appliances. It provides enough power for tasks like circulating air, moving fluids, or operating machinery without being overly large or expensive.

5. **1725 RPM Speed** The motor operates at a moderate speed (1725 RPM), which is ideal for many applications where high torque at low speed is not required. This speed is common for general-purpose use and avoids the need for additional gearing in many cases.

6. **Energy Efficiency** While not explicitly rated as "energy-efficient," single-phase induction motors of this type are generally more efficient than older designs. Modern motors like this one typically have better power-to-weight ratios and lower energy losses compared to decades-old models.

7. **Affordability** As a standard, mid-range motor, this unit is likely priced competitively compared to specialty or high-performance motors. It offers a balance between cost and performance for basic applications.

8. **Compatibility with Existing Systems** If you already have machinery or equipment running on 115V single-phase power, this motor will integrate seamlessly without requiring significant electrical upgrades.

9. **Easy Installation** The motor s design is straightforward, and many users can install it themselves with basic tools. No specialized training is typically required for simple applications.

10. **Long Lifespan with Proper Maintenance** With regular lubrication of bearings and protection from environmental contaminants (dust, moisture), this motor can last for many years, often exceeding 10,000 to 20,000 hours of operation.

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### **Cons**

1. **Limited Power for Heavy-Duty Use** At only 1/4 HP, this motor is not suitable for demanding applications that require significant torque or continuous heavy loads. For example, it may struggle with large pumps, high-capacity conveyors, or machinery that operates under sustained high resistance.

2. **Single-Phase Limitations** Single-phase motors are generally less efficient than three-phase motors of the same power rating. They may also have higher starting currents, which can cause voltage drops in systems with weak wiring or insufficient capacity. This can lead to tripped breakers or reduced performance during startup.

3. **Starting Performance** Single-phase induction motors often require additional components (such as a capacitor start or run capacitor) to achieve smooth starting. If the motor lacks built-in starting mechanisms, you may need to purchase and install separate accessories, adding to the cost and complexity.

4. **Sensitivity to Voltage Fluctuations** Motors like this are sensitive to voltage variations. Running at voltages significantly higher or lower than 115V can reduce efficiency, increase wear, or even damage the motor over time. In areas with unstable power supplies, this could be a concern.

5. **Environmental Limitations** Unless specified otherwise, this motor is likely designed for indoor or protected outdoor use. Exposure to extreme temperatures, high humidity, corrosive environments, or dust without proper protection can shorten its lifespan.

6. **Noise and Vibration** Like many induction motors, this unit may produce some noise and vibration during operation, especially if the bearings wear out or if the motor is not properly aligned with its load. This can be a nuisance in quiet environments or sensitive applications.

7. **Limited Customization** This is a standard off-the-shelf motor with fixed specifications. If your application requires non-standard features (e.g., variable speed, specific enclosure type, or special mounting), you may need to source a different model or modify the setup.

8. **Potential for Overheating in Poorly Ventilated Spaces** Motors generate heat during operation, and inadequate ventilation can lead to overheating, reducing efficiency and risking damage. Ensure the motor has proper airflow around it.

9. **Depreciation Over Time** While durable, motors like this may become obsolete as technology advances. Replacement parts may become harder to find in the future, though the 56 frame helps mitigate this risk.

10. **No Built-in Protection Features** Unless specified, this motor may lack built-in overload protection or thermal cutouts. In applications where motor failure could cause damage to other equipment, additional protective measures (such as fuses or relays) may be necessary.

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### **Conclusion**

The Westinghouse S1178671 (1/4 HP, 115V, 1725 RPM, 56 frame) is a solid, reliable choice for light-duty applications where a standard single-phase motor is sufficient. Its strengths lie in its durability, widespread availability of parts, ease of installation, and compatibility with common electrical systems. It is well-suited for tasks such as small fans, pumps, compressors, or conveyors in residential, commercial, or light industrial settings.

However, it is not ideal for heavy-duty or high-torque applications, and its single-phase design may introduce challenges in terms of starting performance and efficiency compared to three-phase motors. Users should ensure their application matches the motor s specifications and that the motor is properly maintained to maximize its lifespan.

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### **Recommendation**

- You need a reliable, mid-range single-phase motor for light to moderate-duty applications.

- Your application requires 115V power and does not demand high torque or continuous heavy loads.

- You value ease of installation, availability of parts, and a well-known brand like Westinghouse.

- The motor s 1725 RPM and 1/4 HP rating align with your equipment s requirements.

- You are willing to perform basic maintenance (e.g., lubrication, cleaning) to ensure longevity.

- Your application requires high torque, frequent starts/stops, or heavy continuous loads. In such cases, consider a higher horsepower motor or a three-phase motor if available.

- Your electrical system is prone to significant voltage fluctuations, which could damage the motor.

- You need a motor with built-in protection features (e.g., thermal overload protection) that this standard model may lack.

- The motor will operate in extremely harsh environments (e.g., high humidity, corrosive chemicals, or extreme temperatures) without proper enclosure protection.

- If you need higher torque or efficiency, explore three-phase motors or variable frequency drive (VFD)-compatible motors.

- For applications requiring frequent starts/stops, consider a capacitor-start or permanent-split capacitor motor.

- If cost is a major concern, check for compatible generic or aftermarket brands that may offer similar performance at a lower price.

Overall, the Westinghouse S1178671 is a practical and dependable motor for its intended use, provided the application matches its capabilities. Always verify the motor s compatibility with your specific equipment and electrical setup before purchasing.

Details:

From the photos/details it appears largely complete as a motor assembly, but any application-specific accessories may be missing. Solid old cast metal housing with exposed pulley shaft and starter/switch assembly. Included is the Westinghouse Type FH motor assembly exactly as shown/described. Westinghouse Type FH 1/4 HP Motor - Fair Vintage Bench Mount, Electric AC motor, bench/base mounted with slotted feet.

Nameplate specs show 1/4 HP, 115V, 4.9 amps, single phase, 60 cycles, and 1725 RPM continuous duty. It has heavy paint loss, oxidation, rust on the mount and shaft hardware, plus grime dust from age/ storage. Good candidate for restoration, display, parts, or someone who knows how to safely inspect and refurbish vintage electric motors. The shaft/pulley area and switch components show corrosion, the front rubber-like isolate/grommet appears cracked, old power leads should be assumed brittle or unsafe until properly inspected replaced.

Condition is fair and being sold honestly as an older, untested motor.

part #: s1178671 prices

• $27.00-$299.88

specifications oelemot:

• brand: Westinghouse
• mpn: S1178671
• model: 56ge
• part type: Hp Motor
• actual rated input voltage: 115 V
• full load amps: 4.9
• rated load: Hp
• ac frequency rating: 60 Hz
• enclosure type: Open
• base rpm: 1725
• ac motor type: Induction/asynchronous
• mounting type: Base-mounted
• current type: Ac
• ac phase: Single Phase

payments oelemot:

• other
• credit card: Diners-club
• wallet: Google-pay

general oelemot:

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

returns oelemot:

• policy: No Returns

shipping oelemot:

• type: Calculated
• service: UPS Ground
• class: Standard
• carrier: UPS
• cost: $30.41
• transit: 4-9 Days

seller oelemot:

• # reviews: 0
• city: Brownsburg, Indiana
• rating: 0.0%

offer oelemot:

• availability: In Stock
• sold: 0
• started: May 7, 2026
• quantity: 1
• options: Ship-to-home

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