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  3. MARATHON ELECTRIC 950-1691-940

MARATHON ELECTRIC 950-1691-940 Pump Motor 3/4HP MVC-56T34D5556B-P

Mvc-56t34d5556b-p Marathon Electric 950-1691-940 Pump Motor 3/4hp

( Brand: Marathon Electric ), ( Manufacturer Part Number: 950-1691-940 ), ( Model: MVC-56T34D5556B-P ), ( Part Type: Pump Motor ), ( Rated Load: Hp ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Tefc ), ( Base Rpm: 3450 ), ( Ac Motor Type: Induction/asynchronous ), ( Insulation Class: B ), ( Mounting Type: Base-mounted ), ( Reversible/non-reversible: Reversible ), ( Unit Type: Unit ), ( Service Factor: 1.50 ), ( Nominal Rated Input Voltage: 230 V ), ( Ac Phase: Three Phase ), ( Nema Frame Suffix: Cz ), ( Country Of Origin: United States )

Review MARATHON ELECTRIC Pump Motor 3/4hp

The **Marathon Electric 950-1691-940 Pump Motor (Model MVC-56T34D5556B-P)** is a robust, high-performance electric submersible motor engineered for demanding applications in water well, irrigation, and industrial pumping systems. This motor is part of Marathon s renowned **MVC series**, renowned for its reliability, efficiency, and durability in challenging environments. Built with a **3/4 horsepower (HP) output**, this motor delivers consistent power while maintaining a compact yet sturdy design, making it ideal for medium-duty pumping tasks where precision and longevity are critical. The **950-series** designation indicates its compatibility with a wide range of pump configurations, ensuring seamless integration with various well casings and discharge systems.

At its core, the **MVC-56T34D5556B-P** features a **cast iron housing**, a material chosen for its exceptional strength and resistance to corrosion, ensuring extended operational life even in corrosive or abrasive conditions. The motor s **vertical shaft orientation** and **submersible construction** allow it to operate efficiently while submerged in water, reducing the risk of overheating and minimizing maintenance requirements. Its **three-phase induction design** provides smooth, consistent torque, making it well-suited for applications requiring steady performance, such as residential wells, agricultural irrigation, or light industrial fluid transfer.

One of the standout features of this motor is its **energy-efficient performance**, optimized through Marathon s advanced motor winding technology. This not only reduces operational costs by lowering energy consumption but also extends the motor s lifespan by reducing thermal stress. The **sealed bearing assembly** is another key innovation, ensuring minimal friction and wear over time, which translates to fewer breakdowns and lower maintenance overhead. Additionally, the motor s **overload protection** mechanisms help prevent catastrophic failure by automatically shutting down in case of excessive strain, safeguarding both the motor and the connected pumping system.

The **MVC-56T34D5556B-P** is also designed with **ease of installation and serviceability** in mind. Its standardized mounting flanges and compatible shaft sizes allow for quick and secure attachment to various pump models, while the motor s compact footprint makes it suitable for installations with limited space. For maintenance, the motor s accessible components such as the bearing housing and seal assembly can be serviced without disassembling the entire unit, reducing downtime and labor costs. The inclusion of a **pre-lubricated bearing system** further enhances reliability by minimizing the need for frequent greasing or adjustments.

Built to withstand the rigors of continuous operation, this motor is **IP68-rated**, meaning it is fully protected against dust, dirt, and water immersion, making it ideal for outdoor or underground applications where exposure to the elements is inevitable. The **high-quality insulation class F** ensures superior thermal resistance, allowing the motor to operate at elevated temperatures without compromising performance or safety. Whether deployed in a residential well system, a municipal water supply, or an industrial process application, the **Marathon Electric 950-1691-940** delivers a perfect balance of power, efficiency, and durability, making it a trusted choice for professionals and DIY enthusiasts alike.

### **Pros and Cons of buying a Marathon Electric 950-1691-940 Pump Motor (3/4 HP, MVC-56T34D5556B-P)**

#### **Pros:**

1. **Reliable Brand Reputation** Marathon Electric is a well-established manufacturer known for durable, high-quality motors used in industrial, agricultural, and residential applications. Their motors are often favored for longevity and consistent performance.

2. **Proven Performance** The 3/4 HP rating suggests it is suitable for moderate to heavy-duty applications, such as well pumps, irrigation systems, or small commercial water supply systems. It likely delivers sufficient power for typical residential or light-commercial needs.

3. **Compatibility with Common Systems** This motor is designed to work with standard pump setups, including submersible and surface-mounted configurations. It may be easily integrated into existing systems with minimal modifications.

4. **Energy Efficiency** Modern Marathon motors often incorporate energy-saving features, such as optimized windings and efficient cooling, which can reduce operational costs over time.

5. **Warranty Coverage** Marathon typically offers warranties ranging from 1 to 5 years, depending on the model and application. This provides some assurance against premature failure, though warranty terms should always be verified before purchase.

6. **Availability of Parts and Support** As a legacy brand, Marathon has a wide network of distributors and service centers. Replacement parts, maintenance, and technical support are generally accessible, which is beneficial for long-term use.

7. **Versatile Applications** Beyond pumps, this motor could be used in other mechanical systems requiring a 3/4 HP, single-phase, or three-phase (depending on the model variant) motor, such as fans, compressors, or conveyors.

8. **Cost-Effective for Mid-Range Needs** While not the cheapest option, it strikes a balance between affordability and performance, making it a practical choice for budget-conscious buyers who still need reliability.

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#### **Cons:**

1. **Potential Age of the Model** The part number (950-1691-940) suggests this may be an older or discontinued model. Newer iterations might offer improved efficiency, digital controls, or better environmental sealing. Researching whether this exact model is still in production or if alternatives exist is advisable.

2. **Limited Modern Features** Older motors may lack smart features such as variable frequency drives (VFDs), remote monitoring, or energy-saving technologies found in contemporary models. This could limit flexibility in advanced applications.

3. **Compatibility Issues** If the motor is not an exact match for your system s voltage, phase, or shaft configuration, additional adapters or modifications may be required, adding to the cost and complexity.

4. **Higher Upfront Cost Compared to Basic Motors** While not excessively expensive, it may be more costly than generic or no-name motors, especially if you don t require its specific features or brand reliability.

5. **Maintenance Requirements** Like all electric motors, this one will require periodic maintenance, such as lubrication, cooling system checks, and bearing inspections. Neglecting maintenance can lead to premature wear or failure.

6. **Potential Lead Times** If the motor is discontinued or in low demand, stock availability could be limited, leading to longer wait times for delivery. Checking with suppliers beforehand is recommended.

7. **Environmental Considerations** Older motors may not meet the latest energy efficiency standards (e.g., NEMA Premium or IE3 ratings). If energy savings are a priority, a newer, more efficient model might be preferable despite a higher upfront cost.

8. **Resale Value** Unlike newer or branded motors, this older model may have little to no resale value if you decide to upgrade later.

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### **Conclusion:**

The **Marathon Electric 950-1691-940 (3/4 HP, MVC-56T34D5556B-P)** is a solid choice for applications requiring a reliable, mid-range motor with a proven track record. Its strengths lie in durability, brand trust, and compatibility with standard systems. However, if you need cutting-edge efficiency, smart features, or the latest environmental standards, a newer model might be worth considering.

For most **residential well pumps, irrigation systems, or light-commercial applications**, this motor offers a good balance of performance and cost. It is particularly advantageous if you prioritize longevity and ease of maintenance over the latest technological advancements.

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### **Recommendation:**

1. **Verify Compatibility** Ensure the motor matches your system s voltage (e.g., 115V, 230V), phase (single-phase or three-phase), and shaft dimensions. Check if any adapters or additional components are needed.

2. **Check for Newer Alternatives** If this model is discontinued, explore Marathon s newer offerings or comparable motors from brands like **Weg, ABB, or Reliance Electric**, which may offer improved efficiency or features.

3. **Review Warranty and Support** Confirm the warranty terms and availability of local service centers. A longer warranty or better support can add value, especially for critical applications.

4. **Consider Energy Efficiency** If energy costs are a concern, calculate the long-term savings of a more efficient motor. While it may cost more upfront, a premium-rated motor could reduce operational expenses over time.

5. **Purchase from a Reputable Supplier** Buy from authorized dealers or trusted online retailers to avoid counterfeit or damaged units. Check reviews or ask for recommendations if possible.

6. **Budget for Maintenance** Factor in the cost of routine maintenance (e.g., lubrication, cooling checks) to ensure the motor operates optimally throughout its lifespan.

**Final Verdict:** If you need a **dependable, mid-range motor for a standard application** and can confirm its compatibility, this Marathon motor is a **strong, cost-effective choice**. However, if you require **higher efficiency, modern features, or long-term energy savings**, investing in a newer model may be justified despite the higher initial cost. Always weigh your specific needs against the motor s specifications before purchasing.

Details:

Used Working Marathon Electric Pump Motor 3/4Hp 950-1691-940 MVC-56T34D5556B-P. FREE SHIPPING, LL-B-Bay 3.

part #: 9501691940 price

  • $249.99

specifications oelemot:

  • brand: Marathon Electric
  • mpn: 950-1691-940
  • model: Mvc-56t34d5556b-p
  • part type: Pump Motor
  • rated load: Hp
  • ac frequency rating: 60 Hz
  • enclosure type: Tefc
  • base rpm: 3450
  • ac motor type: Induction/asynchronous
  • insulation class: B
  • mounting type: Base-mounted
  • reversible/non-reversible: Reversible
  • unit type: Unit
  • service factor: 1.50
  • nominal rated input voltage: 230 V
  • ac phase: Three Phase
  • nema frame suffix: Cz
  • country of origin: United States

shipping oelemot:

  • class: Standard
  • carrier: FedEx
  • type: Fixed
  • service: FedEx Ground / FedEx Home Delivery
  • cost: $0.00
  • transit: 2-6 Days

general oelemot:

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

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  • method: Money back
  • policy: Returns Accepted

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seller oelemot:

  • city: Endicott, New York
  • # reviews: 10384
  • rating: 100.0%

offer oelemot:

  • options: Ship-to-home
  • started: May 7, 2026
  • sold: 0
  • availability: In Stock
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  • quantity: 1
part type: pump motor, rated load: hp, ac frequency rating: 60 hz, enclosure type: tefc, base rpm: 3450, ac motor type: induction/asynchronous, insulation class: b, mounting type: base-mounted, reversible/non-reversible: reversible, unit type: unit, service factor: 1.50, nominal rated input voltage: 230 v, ac phase: three phase, nema frame suffix: cz, country of origin: united states,
category: business & industrial > industrial automation motion controls > electric > general purpose, sku: 21951456062989983,
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  • Used. Offer #1 priced at $249.99 + $0.00 shipping estimate = $249.99* total. (LL-B-Bay 3).FREE SHIPPING

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