TOSHIBA B3504FLG3BMHL Motor 350HP

( Brand: Toshiba ), ( Manufacturer Part Number: B3504FLG3BMHL ), ( Part Type: Motor ), ( Inverter/vector Duty Rating: Inverter Duty ), ( Nema Design Letter: Design B ), ( Special Motor Construction: Severe Duty Motor ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Tefc ), ( Shaft Type: Keyed ), ( Inverter Duty: Marked On Plate ), ( Insulation Class: F ), ( Weight: 1728 Pounds ), ( Amps: 380 ), ( Current Type: Ac ), ( Duty: Continuous ), ( Voltage: 230/460 V, 3 Phase, 60 Hz ), ( Nominal Rated Input Voltage: 460 V ), ( Ac Phase: Three Phase ), ( Country Of Origin: United States )

Review TOSHIBA 350hp Motor Model #b3504flg3bmhl

The **Toshiba B3504FLG3BMHL 350 Horsepower Motor** is a robust, high-performance electric motor engineered to deliver exceptional reliability, efficiency, and durability in demanding industrial applications. Part of Toshiba s renowned line of premium electric motors, this model is specifically designed to meet the rigorous demands of heavy-duty machinery, conveyor systems, compressors, pumps, and other power-intensive equipment where consistent performance is critical. With a **350 horsepower output**, this motor provides substantial torque and sustained power, making it ideal for large-scale operations where efficiency and longevity are non-negotiable.

Constructed with Toshiba s advanced engineering, the B3504FLG3BMHL features a **high-efficiency, Totally Enclosed Fan-Cooled (TEFC) design**, ensuring optimal thermal management while protecting internal components from dust, moisture, and contaminants. The motor s robust **NEMA Premium efficiency rating** translates to lower energy consumption, reduced operational costs, and a smaller environmental footprint, aligning with modern sustainability goals. Its **Class F insulation** and **IP55 protection rating** further enhance its resilience against harsh operating conditions, extending its service life and minimizing maintenance requirements.

The motor s **ball-bearing or sleeve-bearing configuration** (depending on the specific application) ensures smooth operation and reduced friction, contributing to quieter performance and extended bearing life. Toshiba s proprietary **vibration-dampening technology** minimizes mechanical stress, while the **high-quality copper windings** and **precise laminations** optimize magnetic efficiency, delivering consistent power output even under heavy loads. The **NEMA Premium certification** not only guarantees superior energy efficiency but also adheres to strict industry standards for performance and reliability, making it a trusted choice for manufacturers seeking long-term dependability.

Additionally, the B3504FLG3BMHL is equipped with **Toshiba s advanced control options**, including **variable frequency drive (VFD) compatibility**, allowing for seamless integration into modern automation systems. This flexibility enables precise speed and torque control, enhancing process efficiency and reducing wear on connected machinery. The motor s **compact yet sturdy frame design** (typically NEMA 44 or 45, depending on the variant) maximizes power density while maintaining ease of installation and maintenance. Whether deployed in manufacturing plants, mining operations, or large-scale industrial facilities, this motor exemplifies Toshiba s commitment to delivering a product that balances power, efficiency, and durability ensuring peak performance for years to come.

**Pros and Cons of buying a Toshiba B3504FLG3BMHL 350HP Motor**

The Toshiba B3504FLG3BMHL is a high-performance motor designed for industrial applications, particularly in HVAC systems, pumps, and compressors. Below is a detailed analysis of its advantages and disadvantages.

### **Pros**

1. **High Power Output (350HP)**

The motor delivers substantial power, making it suitable for demanding applications such as large-scale refrigeration, industrial ventilation, or heavy-duty machinery. Its 350HP rating ensures reliable performance under heavy loads.

2. **Energy Efficiency**

Toshiba motors are known for incorporating energy-saving technologies, such as high-efficiency windings and optimized magnetic design. This can lead to lower operational costs over time by reducing electricity consumption.

3. **Durability and Reliability**

Toshiba is a well-established brand with a reputation for manufacturing robust industrial equipment. The B3504FLG3BMHL is built with high-quality materials, including reinforced insulation and corrosion-resistant coatings, which extend its lifespan in harsh environments.

4. **Compatibility with Variable Frequency Drives (VFDs)**

Many Toshiba motors are designed to work seamlessly with VFDs, allowing for adjustable speed control. This feature enhances operational flexibility, reduces wear and tear, and improves energy efficiency in applications where variable speed is beneficial.

5. **Low Maintenance Requirements**

The motor s robust construction and high-quality components reduce the need for frequent maintenance. Features such as sealed bearings and efficient cooling systems contribute to longer intervals between servicing.

6. **Noise and Vibration Reduction**

Toshiba motors are engineered to minimize operational noise and vibration, which is advantageous in environments where smooth operation is critical, such as data centers or precision manufacturing facilities.

7. **Warranty and Support**

Toshiba offers comprehensive warranties and access to technical support, ensuring that users have assistance in case of issues. This can be particularly valuable for large-scale industrial operations where downtime is costly.

8. **Environmental Compliance**

The motor likely meets or exceeds global environmental standards, including energy efficiency regulations (e.g., IE3 or IE4 classifications), making it a compliant choice for facilities with strict sustainability requirements.

---

### **Cons**

1. **High Initial Cost**

High-performance motors like the Toshiba B3504FLG3BMHL come with a premium price tag. The upfront investment may be prohibitive for smaller businesses or applications where lower-power motors would suffice.

2. **Specialized Installation Requirements**

Due to its size and power, the motor may require professional installation, including proper grounding, wiring, and alignment with the connected equipment. Improper installation can lead to inefficiencies or premature failure.

3. **Weight and Space Constraints**

A 350HP motor is heavy and bulky, which may limit installation options in facilities with space restrictions. Additional structural support may be needed to accommodate its weight.

4. **Potential for Overkill in Some Applications**

If the motor is used in an application where 350HP is not fully utilized (e.g., a system with inconsistent load demands), the excess power may result in higher energy consumption without proportional benefits.

5. **Dependency on Power Supply Stability**

High-power motors are sensitive to voltage fluctuations or power surges. Facilities with unstable electrical grids may need additional protective measures, such as surge suppressors or backup generators, to ensure reliable operation.

6. **Limited Availability of Replacement Parts**

While Toshiba is a reputable brand, some specialized components or older models may have limited availability of replacement parts. This could pose challenges if maintenance or repairs are required years after purchase.

7. **Learning Curve for Operation and Maintenance**

Operating and maintaining a high-efficiency motor may require training for personnel unfamiliar with its features. This could introduce delays or errors if the staff lacks expertise.

8. **Potential for Higher Maintenance Costs Over Time**

While the motor itself is durable, high-performance components may require more specialized maintenance tools or technicians, increasing long-term costs compared to standard motors.

---

### **Conclusion**

The Toshiba B3504FLG3BMHL 350HP motor is an excellent choice for industrial applications requiring high power, efficiency, and reliability. Its advanced features, durability, and energy-saving capabilities make it a strong investment for large-scale operations where performance is critical. However, the high initial cost, specialized installation needs, and potential overkill in lower-demand applications must be carefully considered.

For businesses with substantial power requirements, limited space constraints, and access to proper installation and maintenance support, this motor offers significant long-term benefits. Conversely, smaller operations or applications with lower power needs may find it unnecessarily expensive or impractical.

### **Recommendation**

- Your application demands consistent high power (e.g., industrial refrigeration, large HVAC systems, or heavy-duty machinery).

- You prioritize energy efficiency and long-term cost savings.

- Your facility can accommodate the motor s size and weight, and you have access to professional installation and maintenance.

- You operate in an environment where reliability and low maintenance are critical.

- Your budget is constrained, and a lower-power motor would meet your needs.

- Your facility lacks the space or structural support for a large motor.

- You do not have access to skilled technicians for installation and maintenance.

- The motor s power exceeds your application s typical load, leading to inefficiencies.

For most industrial users requiring high performance, the Toshiba B3504FLG3BMHL is a justified investment. However, conduct a thorough cost-benefit analysis and consult with an engineer or specialist to ensure it aligns with your specific operational requirements.

Details:

Factory original plate still on severe duty motor. Functionality: 100% unused; factory original plate still on shaft. Toshiba 350 HP Motor model #B3504FLG3BMHL. FOB: our Dock, Gainesville, Tn.

Dimensions: 55 L x 30. Nameplate: Data is crisp and legible see close up pictures. Premium efficiency for reduced operating cost. Surplus Never Installed or Used.

part #: b3504flg3bmhl prices

• $300.00-$844.95

specifications oelemot:

• brand: Toshiba
• mpn: B3504flg3bmhl
• part type: Motor
• inverter/vector duty rating: Inverter Duty
• nema design letter: Design B
• special motor construction: Severe Duty Motor
• ac frequency rating: 60 Hz
• enclosure type: Tefc
• shaft type: Keyed
• inverter duty: Marked On Plate
• insulation class: F
• weight: 1728 Pounds
• amps: 380
• current type: Ac
• duty: Continuous
• voltage: 230/460 V, 3 Phase, 60 Hz
• nominal rated input voltage: 460 V
• ac phase: Three Phase
• country of origin: United States

seller oelemot:

• city: Surgoinsville, Tennessee
• # reviews: 3
• rating: 100.0%

shipping oelemot:

payments oelemot:

• wallet: Apple-pay
• other
• credit card: Mastercard

returns oelemot:

• policy: No Returns

general oelemot:

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

offer oelemot:

• started: February 17, 2026
• best offers: True
• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 1

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