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  3. BROOK CROMPTON PA2M7.5.5-2D

BROOK CROMPTON PA2M7.5.5-2D Motor 3PH 7.5HP

Pa2m7.5.5-2d Brook Crompton Motor 3ph 7.5hp Pa2m7.5 5-2d

( Brand: Brook Crompton ), ( Manufacturer Part Number: PA2M7.5.5-2D ), ( Model: PA2M7.5 5-2D ), ( Part Type: 5hp Motor ), ( Rated Load: Hp ), ( Iec Frame Size: 132 ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Tefc ), ( Base Rpm: 3520 ), ( Shaft Type: Keyed ), ( Mounting Type: Base-mounted ), ( Current Type: Ac ), ( Ip Rating: Ip55 ), ( Service Factor: 1.15 ), ( Ac Phase: Three Phase ), ( Country Of Origin: China )

Review BROOK CROMPTON Motor 3ph 7.5hp 5-2d

The **Brook Crompton PA2M7.5.5-2D** is a robust, high-performance three-phase induction motor designed to deliver exceptional reliability and efficiency in demanding industrial applications. Part of Brook Crompton s proven PA2M series, this motor is engineered with precision to meet stringent performance standards while ensuring longevity and minimal maintenance requirements. With a rated power output of **7.5 horsepower (5.5 kilowatts)**, it is well-suited for a wide range of machinery, including conveyors, pumps, compressors, and heavy-duty manufacturing equipment. The motor features a **2-pole design**, providing a high-speed operation of approximately **3,450 RPM at 50Hz** (or **3,600 RPM at 60Hz**), making it ideal for applications where rapid rotational speed is critical.

Constructed with a **Totally Enclosed Fan-Cooled (TEFC)** design, the PA2M7.5.5-2D ensures superior protection against dust, moisture, and corrosive environments, enhancing its durability in harsh operating conditions. The motor s robust **aluminum or cast iron housing** provides structural integrity, while its **ball-bearing support system** ensures smooth and vibration-free operation over extended periods. The **Class F insulation** and **IP55 protection rating** further reinforce its resistance to environmental contaminants, making it a dependable choice for both indoor and outdoor industrial settings.

The motor s **standard NEMA 4 frame** (or equivalent metric frame, depending on regional specifications) allows for easy integration into existing systems, while its **direct-on-line (DOL) starting capability** simplifies installation and reduces the need for additional control components. The **high-efficiency motor design** not only optimizes energy consumption but also minimizes operational costs, contributing to sustainable industrial practices. Additionally, the PA2M7.5.5-2D is equipped with **standard voltage ratings of 400V or 440V (3-phase)**, offering flexibility for various electrical infrastructures.

Brook Crompton s reputation for quality engineering is evident in the PA2M7.5.5-2D, which combines **superior mechanical strength** with **advanced electrical performance**. Whether used in manufacturing plants, mining operations, or commercial facilities, this motor delivers consistent power, reduced downtime, and enhanced productivity. Its **low-noise operation** and **compact yet sturdy construction** make it a practical solution for applications where space and efficiency are key considerations. With minimal maintenance demands and a long service life, the PA2M7.5.5-2D stands as a testament to Brook Crompton s commitment to delivering motors that meet the highest industrial standards.

The **Brook Crompton PA2M7.5.5-2D** is a three-phase induction motor rated at **7.5 HP (5.6 kW)** with a **2-pole design (3000 RPM)**. Below is a detailed analysis of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Brook Crompton PA2M7.5.5-2D Motor**

1. **Reliable Brand Reputation**

Brook Crompton is a well-established manufacturer of electric motors, known for producing durable and efficient industrial motors. Their products are widely used in applications requiring consistent performance.

2. **High Efficiency**

The motor likely follows **IE2 or IE3 efficiency standards**, meaning it consumes less power for the same output compared to older models. This reduces operational costs and improves energy savings.

3. **Robust Construction**

The **drip-proof (IP55 or similar) and enclosed design** protects against dust, moisture, and solid contaminants, making it suitable for harsh industrial environments.

4. **Standardized Design for Easy Replacement**

As a widely available motor, it can easily replace older or damaged motors in existing setups without requiring significant modifications to the mechanical system.

5. **Good Starting Torque**

Induction motors like this typically provide sufficient starting torque for most applications, including pumps, compressors, and conveyor systems.

6. **Low Maintenance Requirements**

With proper installation and lubrication, these motors have a long lifespan with minimal upkeep, reducing downtime.

7. **Compatibility with Standard Control Systems**

It works seamlessly with common **VFD (Variable Frequency Drive) controllers**, allowing for speed control in applications requiring variable torque.

8. **Cost-Effective for Mid-Range Power Needs**

At **7.5 HP**, it strikes a balance between affordability and performance, making it suitable for medium-duty industrial applications.

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### **Cons of the Brook Crompton PA2M7.5.5-2D Motor**

1. **Limited High-Speed Applications**

Being a **2-pole motor (3000 RPM)**, it may not be ideal for applications requiring very high speeds (e.g., some centrifugal pumps or high-speed machinery). A **4-pole (1500 RPM) or 6-pole (1000 RPM) motor** might be better in such cases.

2. **Potential Noise and Vibration**

Like most induction motors, it may generate some noise and vibration, especially under load. Proper mounting and alignment are necessary to mitigate this.

3. **Dependence on Power Supply Stability**

Induction motors are sensitive to **voltage fluctuations and harmonics**, which can reduce efficiency and lifespan if the power supply is unstable.

4. **Standardization May Limit Customization**

Since it is a **stock motor**, custom features (e.g., special enclosures, unique mounting options) may not be available without modifications.

5. **Higher Initial Cost Than Very Low-Power Motors**

While still reasonable, a **7.5 HP motor** will cost more upfront than smaller motors (e.g., 3-5 HP), which may not be justified for low-power applications.

6. **Potential for Overloading in Continuous Duty**

If the motor is used in **continuous heavy-duty applications** without proper sizing, it may overheat, reducing efficiency and lifespan.

7. **Limited Availability of Spare Parts in Some Regions**

Depending on the market, finding **specific spare parts** (e.g., bearings, windings) for older Brook Crompton models may be challenging compared to newer brands.

8. **No Built-In Protection Against Overcurrent (Unless Specified)**

Some standard motors lack **integrated overload protection**, requiring additional relays or circuit breakers for safety.

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### **Conclusion**

The **Brook Crompton PA2M7.5.5-2D motor** is a **reliable, efficient, and cost-effective choice** for **medium-duty industrial applications** such as pumps, fans, compressors, and conveyors. Its **durable construction, good efficiency, and ease of maintenance** make it a strong option for general-purpose use. However, it may **not be ideal for high-speed or highly customized applications**, and users must ensure proper **voltage stability, cooling, and alignment** to maximize performance.

If the application requires **higher speeds, extreme environmental conditions, or advanced control features**, alternative motors (e.g., **VFD-compatible, explosion-proof, or brushless DC motors**) may be more suitable.

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### **Recommendation**

**Buy the Brook Crompton PA2M7.5.5-2D if:**

You need a **7.5 HP, 3-phase motor** for **standard industrial applications** (pumps, fans, conveyors).

You require a **durable, efficient, and widely available** motor with **minimal maintenance**.

Your power supply is **stable**, and the motor will operate under **moderate to heavy but not extreme loads**.

You prefer a **proven brand** with good after-sales support in your region.

**Consider alternatives if:**

Your application requires **very high speeds (e.g., >3000 RPM)** opt for a **4-pole or 6-pole motor**.

The environment is **extremely harsh** (e.g., high humidity, corrosive gases) consider an **explosion-proof or special enclosure motor**.

You need **precise speed control** pair it with a **high-quality VFD** or consider a **servo motor**.

Budget is a major constraint check for **lower-cost alternatives** (e.g., **Siemens, WEG, or local brands** with similar specs).

**Final Verdict:**

For **most standard industrial uses**, the **Brook Crompton PA2M7.5.5-2D is a solid, well-performing motor** that balances **cost, efficiency, and reliability**. Ensure proper installation, maintenance, and load matching to extend its lifespan. If specific application needs differ significantly, consult an **electrical engineer** to determine the best fit.

Details:

FREE SHIPPING, LL-B-Bay 3 Used Working Brook Crompton Motor 3PH 7.5HP PA2M7.5.5-2D PA2M7.5-2D.

part #: pa2m7552d price

  • $699.99

specifications oelemot:

  • brand: Brook Crompton
  • mpn: Pa2m7.5.5-2d
  • model: Pa2m7.5 5-2d
  • part type: 5hp Motor
  • rated load: Hp
  • iec frame size: 132
  • ac frequency rating: 60 Hz
  • enclosure type: Tefc
  • base rpm: 3520
  • shaft type: Keyed
  • mounting type: Base-mounted
  • current type: Ac
  • ip rating: Ip55
  • service factor: 1.15
  • ac phase: Three Phase
  • country of origin: China

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offer oelemot:

  • started: April 17, 2026
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  • city: Endicott, New York
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general oelemot:

  • Industrial Automation Motion Controls > Electric Motors > General Purpose Motors
  • condition: Used
part type: 5hp motor, rated load: hp, iec frame size: 132, ac frequency rating: 60 hz, enclosure type: tefc, base rpm: 3520, shaft type: keyed, mounting type: base-mounted, current type: ac, ip rating: ip55, service factor: 1.15, ac phase: three phase, country of origin: china,
category: business & industrial > industrial automation motion controls > electric > general purpose, sku: 21589494844209983,
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1 offer $699.99 USD
  • Used. Offer #1 priced at $699.99 + $0.00 shipping estimate = $699.99* total. (LL-B-Bay 3). Used Working Brook Crompton Motor 3PH 7.5HP .5-2D 5-2D.FREE SHIPPING

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