BALDOR RELIANCE 1FM74392728 Phase Tefc Rpm Induction Motor 100HP 460V 1725

( Brand: Baldor Reliance ), ( Manufacturer Part Number: 1FM74392728 ), ( Part Type: Motor ), ( Actual Rated Input Voltage: 460 V ), ( Inverter/vector Duty Rating: Tefc Duty ), ( Full Load Amps: 87.4 ), ( Rated Load: Hp ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Tefc ), ( Base Rpm: 1725 ), ( Ac Motor Type: Induction/asynchronous ), ( Mounting Type: Base-mounted ), ( Current Type: Ac ), ( Service Factor: 1.15 ), ( Ac Phase: Three Phase )

Review BALDOR RELIANCE 100hp 460v Phase Tefc Rpm Induction Motor

The **Baldor Reliance 1FM74392728 100 Horsepower, 460V, Three-Phase, TEFC Induction Motor** is a robust, high-performance electric motor engineered for demanding industrial applications where reliability, efficiency, and durability are paramount. Part of Baldor s renowned Reliance series, this motor delivers a consistent output of **100 horsepower (74.6 kW)** at a nominal speed of **1,725 RPM**, making it ideal for heavy-duty machinery such as conveyors, pumps, compressors, and industrial fans. Designed with a **460V three-phase AC input**, it operates seamlessly within standard industrial power systems, ensuring compatibility with most facility infrastructures while minimizing energy waste through optimized motor efficiency. The **Totally Enclosed Fan-Cooled (TEFC)** construction provides superior protection against dust, moisture, and corrosive environments, making it suitable for both clean and harsh operating conditions whether in manufacturing plants, mining operations, or outdoor installations. Its **NEMA Premium efficiency rating** ensures reduced energy consumption and lower operational costs over the motor s extended service life, aligning with modern sustainability and cost-saving initiatives.

The **1FM74392728** incorporates Baldor s advanced engineering, featuring a **cast iron endbell and housing** for enhanced structural integrity and thermal stability, while its **squirrel-cage induction rotor** ensures smooth, vibration-free operation with minimal maintenance requirements. The motor s **bearing system** is precision-engineered with sealed ball bearings, providing long-lasting performance and resistance to contamination, which is critical in applications where downtime is costly. Additionally, the **NEMA Premium design** includes optimized windings and magnetic materials, further improving power factor and reducing harmonic distortion, contributing to a cleaner electrical grid and more efficient system integration. With a **Class F insulation system**, this motor operates reliably at elevated temperatures, extending its lifespan and maintaining peak performance even under continuous heavy loads.

Built to meet **NEMA MG1 and UL/CSA standards**, the **1FM74392728** offers a high degree of reliability and safety, with features such as **thermal overload protection** and **vibration-resistant construction** to prevent premature wear. Its **standard mounting configuration** (face or foot mount) allows for flexible installation in various setups, while the **480V option** (if applicable) provides additional versatility for different voltage requirements. Whether deployed in a high-volume production line, a water treatment facility, or an HVAC system, this motor exemplifies Baldor s commitment to delivering a **durable, energy-efficient, and low-maintenance solution** that enhances productivity while minimizing operational disruptions. With its **seamless integration into automation systems** and compatibility with variable frequency drives (VFDs), the **1FM74392728** is a versatile workhorse designed to meet the evolving needs of modern industrial environments.

### **Pros and Cons of buying a Baldor Reliance 1FM74392728 (100 HP, 460V, 3-Phase, TEFC, 1725 RPM Induction Motor)**

1. **High Reliability and Durability** Baldor Reliance motors are known for robust construction, high-quality materials, and long service life, making them suitable for industrial applications requiring consistent performance.

2. **Energy Efficiency** This motor likely meets or exceeds NEMA Premium efficiency standards, reducing operational costs over time by improving power factor and reducing energy consumption.

3. **TEFC (Totally Enclosed Fan-Cooled) Design** The sealed enclosure protects against dust, moisture, and contaminants, making it ideal for harsh environments such as manufacturing plants, food processing, or outdoor installations.

4. **Standardized and Compatible** The 460V, 3-phase, 1725 RPM specification ensures compatibility with most industrial power systems and standard control equipment, reducing integration challenges.

5. **Warranty and Support** Baldor (now part of ABB) offers warranties and technical support, which can be valuable for maintenance and troubleshooting.

6. **Proven Performance** With a 100 HP rating, this motor is well-suited for applications like conveyors, pumps, compressors, and industrial machinery where consistent torque and speed are critical.

7. **Aftermarket Availability** Parts and service are widely available, ensuring easier repairs and replacements if needed.

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1. **Higher Upfront Cost** Compared to generic or lower-end motors, Baldor Reliance motors are premium-priced, which may be a barrier for budget-conscious buyers.

2. **Potential Overkill for Some Applications** If the motor is significantly larger than required for the specific load, it may run inefficiently, leading to unnecessary energy waste.

3. **Maintenance Requirements** While durable, TEFC motors require periodic inspection of seals, bearings, and cooling fans to prevent overheating or failure.

4. **Limited Customization** Unlike some specialty motors, this is a standard model with fixed specifications, meaning adjustments for exact speed or torque may require additional components (e.g., variable frequency drives).

5. **Weight and Space Considerations** Larger motors like this one are heavier and may require reinforced mounting structures, adding to installation complexity.

6. **Potential for Overstock or Older Models** Depending on availability, you may end up with a slightly older stock unit, which could have minor wear or less advanced features than the latest models.

7. **Dependence on Supplier Reliability** If purchasing from a distributor, ensure they are reputable to avoid counterfeit or refurbished units that may not meet performance standards.

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The **Baldor Reliance 1FM74392728** is an excellent choice for industrial applications requiring a **reliable, efficient, and durable** 100 HP motor. Its **TEFC enclosure** makes it suitable for dirty or wet environments, while its **standardized specifications** ensure compatibility with most industrial systems. However, the **higher cost** and **potential over-sizing** for smaller applications should be carefully considered.

If the motor aligns with your **power requirements, environmental conditions, and budget**, it is a **strong recommendation** for long-term performance. For applications where cost is a major concern or where exact speed/torque tuning is needed, alternatives like **variable frequency drive (VFD)-compatible motors** or **smaller-rated units** may be worth evaluating.

- You need a **high-reliability, premium-efficiency** solution.

- Your application demands **dust/moisture protection** (TEFC).

- You can justify the **higher upfront cost** with long-term savings.

- Budget constraints make this motor unaffordable.

- The application can accommodate a **smaller or less expensive motor**.

- Custom speed/torque adjustments are required (may need a VFD).

Details:

USED AND TESTED, GOOD CONDITION, FOR SHIPPING DISCOUNTS 248 807 5405 CONDITION.

part #: 1fm74392728 prices

• $240.00-$399.99

specifications oelemot:

• brand: Baldor Reliance
• mpn: 1fm74392728
• part type: Motor
• actual rated input voltage: 460 V
• inverter/vector duty rating: Tefc Duty
• full load amps: 87.4
• rated load: Hp
• ac frequency rating: 60 Hz
• enclosure type: Tefc
• base rpm: 1725
• ac motor type: Induction/asynchronous
• mounting type: Base-mounted
• current type: Ac
• service factor: 1.15
• ac phase: Three Phase

returns oelemot:

• policy: No Returns

seller oelemot:

• # reviews: 11
• city: Milford, Michigan
• rating: 100.0%

shipping oelemot:

• class: Freight
• service: Flat Rate Freight
• cost: $487.00
• type: Fixed

general oelemot:

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

offer oelemot:

• quantity: 1
• started: March 24, 2026
• availability: In Stock
• sold: 0
• options: Ship-to-home

payments oelemot:

• wallet: Paypal
• credit card: Discover
• other

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