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BALDOR-RELIANCER B5177659 Explosion Motor 3HP 208-230/460V 3450RPM

B5177659 Baldor-reliancer Explosion Proof Motor 3hp 208-230/460v 3450rpm

( Brand: Baldor-reliancer ), ( Manufacturer Part Number: B5177659 ), ( Part Type: Motor )

Review BALDOR RELIANCER Explosion Proof Motor 3hp 208-230/460v 3450rpm

The **Baldor-Reliance B5177659 Explosion-Proof Induction Motor** is a robust, high-performance electric motor engineered to deliver reliable power in hazardous environments where safety and durability are paramount. Part of Baldor s trusted line of industrial-grade machinery, this **3 horsepower (HP) motor** is specifically designed to operate seamlessly in Class I, Division 1 and 2, Groups A, B, C, and D atmospheres, making it an ideal solution for applications in oil and gas refineries, chemical processing plants, petrochemical facilities, and other industrial settings where explosive gases or vapors pose a risk. With a **4-pole configuration**, the motor spins at a consistent **3,450 RPM**, providing a balance of efficiency and torque for demanding applications such as pumps, compressors, and conveyors.

Constructed with **explosion-proof enclosures** that meet rigorous NEMA 4X and IP66 standards, this motor is built to withstand harsh environmental conditions, including exposure to moisture, dust, and corrosive substances. The **cast aluminum housing** ensures strength and resistance to thermal expansion, while the **sealed ball bearings** minimize maintenance requirements and extend operational longevity. The motor s **three-phase, squirrel-cage induction design** ensures smooth, efficient power conversion, with a **voltage rating of 208-230/460 volts**, allowing for flexibility in electrical system integration across various industrial setups. Its **Class F insulation system** (with a temperature rise of 80 C at 1.15 service factor) guarantees extended service life while maintaining peak performance under continuous operation.

One of the standout features of the B5177659 is its **high-efficiency performance**, delivering optimal power output with minimal energy loss, which translates to cost savings and reduced operational strain. The motor s **explosion-proof terminal box** is securely sealed to prevent the ingress of flammable gases, while the **vented design** allows for proper cooling without compromising safety. Additionally, the **standard NEMA 4X mounting configuration** ensures compatibility with a wide range of industrial equipment, simplifying installation and integration into existing systems. Whether used in critical infrastructure or high-risk manufacturing processes, this motor exemplifies Baldor-Reliance s commitment to **reliability, safety, and engineering excellence**, providing operators with a dependable power source that can withstand the toughest industrial challenges.

### **Baldor-Reliance B5177659 Explosion-Proof Motor (3HP, 208-230/460V, 3450 RPM) Pros and Cons**

#### **Pros:**

1. **Explosion-Proof Certification** Designed for use in hazardous environments (Class I, Division 1, Groups B, C, D; Class II, Division 1, Groups E, F, G; Class III). This ensures safety in industries like oil and gas, chemical processing, and mining where flammable gases or dust may be present.

2. **Reliability and Durability** Baldor-Reliance is a well-established brand known for high-quality industrial motors with robust construction. The explosion-proof design incorporates reinforced casings, sealed bearings, and explosion-resistant internals to withstand harsh conditions.

3. **Wide Voltage Range (208-230V / 460V)** The motor can operate across multiple voltage inputs, making it versatile for different electrical setups without requiring significant modifications.

4. **High RPM (3450 RPM)** Suitable for applications requiring high-speed operation, such as pumps, compressors, or conveyor systems where speed is critical.

5. **Energy Efficiency** Modern explosion-proof motors often incorporate energy-efficient designs, reducing operational costs over time.

6. **Compatibility with Existing Systems** The NEMA 4X frame (likely, given the model number) ensures compatibility with standard industrial mounting and coupling systems.

7. **Long Lifespan** Properly maintained explosion-proof motors can last decades, reducing replacement costs and downtime.

8. **Regulatory Compliance** Meets strict safety standards (UL, CSA, ATEX, etc.), which is essential for industries with strict compliance requirements.

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#### **Cons:**

1. **Higher Upfront Cost** Explosion-proof motors are significantly more expensive than standard motors due to their specialized construction and certification. The price may range from **$1,500 to $3,500 **, depending on supplier and additional requirements.

2. **Maintenance Complexity** Explosion-proof motors require specialized maintenance, including regular inspections of seals, bearings, and internal components to prevent leaks or failures that could compromise safety. Improper maintenance can void certifications.

3. **Limited Availability of Parts** Finding replacement parts (e.g., bearings, seals, windings) may be harder than for standard motors, potentially increasing downtime if repairs are needed.

4. **Weight and Bulkiness** Due to reinforced casings and safety features, these motors are heavier and larger than non-explosion-proof equivalents, which may complicate installation in space-constrained environments.

5. **Potential for Overkill in Non-Hazardous Applications** If the motor is used in a non-explosion-prone environment, the added cost and complexity may not be justified.

6. **Higher Energy Consumption at Startup** Some explosion-proof motors (especially older models) may draw more current during startup due to their design, which could impact electrical systems if not properly sized.

7. **Potential for Overheating in Non-Hazardous Use** If the motor is not adequately ventilated or used in a non-explosion-risk setting, internal heat buildup could occur, reducing efficiency or lifespan.

8. **Longer Lead Times** Due to specialized manufacturing, ordering may take longer than standard motors, which could delay projects.

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### **Conclusion**

The **Baldor-Reliance B5177659 explosion-proof motor** is an excellent choice for **high-risk industrial environments** where safety is paramount, such as:

- Oil and gas refineries

- Chemical processing plants

- Mining operations

- Pharmaceutical manufacturing

- Hazardous waste treatment facilities

However, for **non-hazardous applications**, a standard NEMA motor would be a more cost-effective and practical alternative.

### **Recommendation**

- **Buy if:**

- You operate in a **Classified Hazardous Location** (explosion risk).

- You prioritize **long-term safety and compliance** over initial cost.

- Your application requires **high RPM and reliability** in a demanding environment.

- You have access to **proper maintenance and spare parts**.

- **Avoid if:**

- Your application is **not in a hazardous area** (standard motors suffice).

- Budget constraints make the premium price prohibitive.

- You lack expertise in **explosion-proof motor maintenance**.

- The motor will be used in a **low-duty cycle** where a less expensive option would work.

**Final Verdict:** This motor is a **strong investment for safety-critical industries** but may not be justified for general industrial use. Always verify the **exact hazardous classification** of your environment and consult a certified electrician or industrial specialist before purchasing.

Details:

Baldor-Reliancer Explosion Proof Motor B5177659 3HP 208-230/460V 3450RPM: 600.00: B51776593HP 3450RPM 7.7-7/3.5A Frame: 145T Used LOC AB11-8841 / AB34D3.

part #: b5177659 price

  • $600.00

specifications oelemot:

  • brand: Baldor-reliancer
  • mpn: B5177659
  • part type: Motor

general oelemot:

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

shipping oelemot:

offer oelemot:

  • availability: In Stock
  • quantity: 1
  • options: Ship-to-home
  • best offers: True
  • started: February 14, 2026
  • sold: 0

seller oelemot:

  • city: Minneapolis, Minnesota
  • # reviews: 9951
  • rating: 100.0%

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returns oelemot:

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  • policy: Returns Accepted
part type: motor,
category: business & industrial > industrial automation motion controls > electric > general purpose, sku: 20391354258330892,
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