TECO WESTINGHOUSE E4506 Ac Electric Motor Rpm Tefcbb Eok 1200 5808B 460-V

( Brand: Teco Westinghouse ), ( Manufacturer Part Number: E4506 ), ( Part Type: Ac Hp Motor ), ( Rated Load: Hp ), ( Nema Design Letter: Design B ), ( Special Motor Construction: Severe Duty Motor ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Tefc ), ( Base Rpm: 1188 ), ( Ac Motor Type: Induction/asynchronous ), ( Shaft Diameter: 4.875 ), ( Insulation Class: F ), ( Mounting Type: Foot-mounted ), ( Current Type: Ac ), ( Service Factor: 1.15 ), ( Nominal Rated Input Voltage: 460 V ), ( Ac Phase: Three Phase ), ( Country Of Origin: United States )

Review TECO WESTINGHOUSE 450 Hp Ac Electric Motor 1200 Rpm Fr Tefcbb 460 Eok

The **Teco-Westinghouse E4506 450 Horsepower Electric Motor** is a robust, high-performance industrial motor engineered to deliver exceptional reliability, efficiency, and durability in demanding applications. Part of the trusted **E-Series** lineup, this **450 horsepower (HP) motor** operates at a nominal speed of **1200 revolutions per minute (RPM)**, making it ideal for heavy-duty machinery such as compressors, pumps, conveyors, and industrial fans where consistent torque and power are critical. Built with **Westinghouse s proven engineering expertise**, this motor combines advanced design features with premium materials to ensure long-term operational integrity in harsh environments.

This motor is classified as a **Totally Enclosed Fan-Cooled (TEFC) unit**, featuring a **B-Basis insulation system (Class B)** that provides superior thermal resistance, extending the motor s lifespan even under continuous heavy loads. The **5808B designation** indicates a specific frame size and mounting configuration, ensuring compatibility with a wide range of industrial gearboxes, belts, and mechanical systems. With a **460-volt (V) single-phase or three-phase** electrical rating, it is optimized for high-efficiency power delivery while maintaining low energy consumption, reducing operational costs over time.

Constructed with **high-strength cast iron end shields and a rugged steel rotor**, the E4506 is designed to withstand mechanical stress, vibration, and thermal fluctuations without compromising performance. Its **explosion-proof (EOK) construction** though not inherently explosion-proof is built to meet stringent safety standards, making it suitable for applications in environments where dust, moisture, or corrosive elements may be present. The motor s **premium bearings** and **sealed windings** further enhance its resistance to wear, ensuring minimal maintenance requirements and extended service intervals.

For applications requiring precise speed control and energy efficiency, this motor can be seamlessly integrated with variable frequency drives (VFDs), allowing for smooth acceleration, reduced mechanical stress, and optimized energy usage. Whether deployed in manufacturing plants, oil and gas facilities, or large-scale HVAC systems, the **Teco-Westinghouse E4506** delivers the power, reliability, and efficiency needed to drive industrial productivity with confidence. Its robust construction, combined with Westinghouse s reputation for quality, makes it a dependable choice for engineers and operators seeking a motor that performs under the most demanding conditions.

### **Pros and Cons of buying a Teco Westinghouse E4506 (450 HP, 1200 RPM, 5808B TEFC, 460V, EOK) Electric Motor**

#### **Pros**

1. **High Power Output (450 HP)** Suitable for heavy-duty industrial applications such as compressors, pumps, conveyors, and large machinery where significant torque and power are required.

2. **Reliable Brand (Teco/Westinghouse)** Teco Industries (now part of Westinghouse Electric) is a well-established manufacturer of industrial motors known for durability and performance in harsh environments.

3. **High Efficiency (TEFC Enclosure)** The Totally Enclosed Fan-Cooled (TEFC) design prevents dust, moisture, and contaminants from entering the motor, making it ideal for dirty or wet industrial settings.

4. **Standard Voltage (460V)** Compatible with most industrial electrical systems, reducing the need for voltage converters or special wiring.

5. **EOK (Energy Efficient) Rating** Meets or exceeds energy efficiency standards, helping reduce operational costs over time.

6. **High RPM (1200 RPM)** Suitable for applications requiring faster rotational speeds, such as centrifugal pumps, fans, and certain types of compressors.

7. **Robust Construction** Built for continuous duty (S1 service factor), ensuring long-term reliability in demanding applications.

8. **Compatibility with Common Drives** Can be paired with variable frequency drives (VFDs) for speed control in applications where variable torque is needed.

9. **Warranty Coverage** Typically comes with a manufacturer s warranty (varies by supplier), providing some protection against defects.

10. **Aftermarket Availability** Parts and service support are widely available due to the motor s popularity in industrial settings.

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#### **Cons**

1. **High Upfront Cost** A 450 HP motor is a significant investment, especially for smaller businesses or startups with limited capital.

2. **Energy Consumption** While energy-efficient, a 450 HP motor will consume substantial electricity, increasing operational costs if not properly managed.

3. **Maintenance Requirements** TEFC motors require periodic inspections for bearing wear, cooling fan maintenance, and seal integrity, especially in dusty or corrosive environments.

4. **Space and Installation Needs** Large motors require proper ventilation, sturdy mounting, and alignment with driven equipment, which may require structural modifications.

5. **Potential for Overkill** If the application does not consistently demand 450 HP, the motor may run inefficiently or unnecessarily strain the system.

6. **Weight and Logistics** The motor is heavy (likely over 5,000 lbs), making transportation and installation logistically challenging.

7. **Compatibility Issues** Some older or non-standard systems may require additional components (e.g., soft starters, custom couplings) to integrate properly.

8. **Depreciation** Industrial motors, while durable, may lose value over time, especially if newer, more efficient models become standard.

9. **Potential for Misapplication** If not matched correctly with the load (e.g., incorrect RPM, voltage, or duty cycle), it could lead to premature failure or inefficiency.

10. **Supplier Dependence** Purchasing from a single supplier may limit negotiation power; comparing quotes from multiple vendors is advisable.

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### **Ending Conclusion**

The **Teco Westinghouse E4506 (450 HP, 1200 RPM, TEFC, 460V, EOK)** is a **high-performance, durable, and reliable motor** well-suited for **heavy-duty industrial applications** where power, efficiency, and protection from harsh environments are critical. Its **TEFC enclosure, energy efficiency, and robust construction** make it a strong choice for **compressors, pumps, conveyors, and other high-torque applications**. However, the **high cost, maintenance needs, and potential overkill for lighter-duty tasks** must be carefully considered before purchase.

For businesses with **consistent high-demand applications**, this motor offers **long-term reliability and cost savings** through efficiency. For smaller operations or applications where **lower horsepower would suffice**, the investment may not be justified.

### **Recommendation**

- You need a **high-power, durable motor** for **continuous heavy-duty use** (e.g., industrial compressors, large pumps, or conveyors).

- Your facility has **proper ventilation and maintenance protocols** in place.

- You can **justify the upfront cost** against long-term operational benefits.

- The motor is **properly matched** to your load requirements (RPM, torque, duty cycle).

- Your application **does not consistently require 450 HP** a slightly smaller motor (e.g., 300-400 HP) may suffice.

- Budget constraints exist explore **used/refurbished motors** or **lower-cost brands** with similar specifications.

- You require **variable speed control** ensure compatibility with a **VFD** before purchasing.

- The motor will operate in **extremely harsh conditions** (e.g., high corrosion risk) a **higher-grade enclosure (e.g., TEFC with explosion-proof options)** may be needed.

**Final Suggestion:** Obtain **multiple quotes**, verify **warranty and support terms**, and consult an **electrical engineer or motor specialist** to ensure the motor aligns perfectly with your application. If possible, **test-run or pilot the motor** in your system before full commitment.

Details:

There is no running warranty. It is recommended that if you purchase the motor in electrically OK condition, it should be reconditioned before going into service. Stock # R-92978. Condition: This motor is currently offered as Electrically OK EOK.

It will also be completely cleaned and a fresh coat of paint applied. The mechanical fits are not checked nor the bearings changed. Comments: Look at nameplate photo for complete information.

part #: e4506 prices

• $13750.00-$33000.00

specifications oelemot:

• brand: Teco Westinghouse
• mpn: E4506
• part type: Ac Hp Motor
• rated load: Hp
• nema design letter: Design B
• special motor construction: Severe Duty Motor
• ac frequency rating: 60 Hz
• enclosure type: Tefc
• base rpm: 1188
• ac motor type: Induction/asynchronous
• shaft diameter: 4.875
• insulation class: F
• mounting type: Foot-mounted
• current type: Ac
• service factor: 1.15
• nominal rated input voltage: 460 V
• ac phase: Three Phase
• country of origin: United States

offer oelemot:

• quantity: 1
• sold: 0
• options: Ship-to-home
• started: March 13, 2026
• availability: In Stock
• best offers: True

seller oelemot:

• city: Toledo, OH, USA
• # reviews: 193
• rating: 100.0%

general oelemot:

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

returns oelemot:

• policy: No Returns

shipping oelemot:

payments oelemot:

• wallet: Paypal
• other
• credit card: Diners-club

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