ATB AF-112M-4K Electric Motor Rpm Iec AF-112M/4K 3-PHASE 4-POLE 5.5KW 7.5HP 1425

( Brand: Atb ), ( Manufacturer Part Number: AF-112M/4K ), ( Part Type: 5hp Motor ), ( Current Type: Ac ), ( Shaft Type: Keyed ), ( Ac Motor Type: Induction/asynchronous ), ( Insulation Class: F ), ( Ac Phase: Three Phase )

Review ATB Af-112m/4k Electric Motor 3-phase 4-pole 5.5kw 7.5hp Rpm Iec

The **ATB AF-112M/4K** is a high-performance, industrial-grade **3-phase electric motor** engineered to deliver exceptional reliability, efficiency, and durability in demanding applications. Part of ATB s premium AF series, this **4-pole, 5.5 kW (7.5 HP)** motor is meticulously designed to meet **IEC standards**, ensuring seamless integration into global industrial systems. Operating at a nominal speed of **1425 RPM**, this motor provides a balanced combination of torque and speed, making it ideal for conveyor systems, pumps, compressors, fans, and other machinery requiring consistent and precise power delivery. Its robust construction features a **fully enclosed, fan-cooled (TEFC) design**, protecting internal components from dust, moisture, and contaminants while maintaining optimal thermal performance. The motor s **Class F insulation** ensures extended operational life under continuous duty cycles, while its **high-efficiency copper rotor** minimizes energy loss, reducing operational costs and environmental impact. With a **NEMA premium or IEC standard frame size**, the AF-112M/4K is built for easy installation and compatibility with standard industrial gearboxes, variable frequency drives (VFDs), and other power transmission systems. ATB s attention to precision engineering is evident in its **low vibration and noise levels**, contributing to smoother operation and reduced maintenance requirements. Whether deployed in manufacturing plants, HVAC systems, or material handling equipment, this motor exemplifies **ATB s commitment to performance, longevity, and operational excellence**, making it a dependable choice for industries seeking a balance of power, efficiency, and reliability.

### **Pros and Cons of buying a ATB AF-112M (4KW/5.5KW, 3-Phase, 4-Pole, 7.5HP, 1425 RPM, IEC)**

1. **High Power Output (5.5kW / 7.5HP)** Suitable for demanding applications such as industrial machinery, pumps, compressors, and conveyor systems where consistent torque is required.

2. **Three-Phase Design** More efficient and stable than single-phase motors, especially for heavy-duty or continuous operation, reducing energy waste and overheating risks.

3. **4-Pole Configuration (1425 RPM)** Offers a balanced speed suitable for many industrial applications without requiring excessive gear reduction, improving efficiency.

4. **IEC Standard Compliance** Ensures compatibility with global electrical systems, making it easier to integrate into existing setups in various regions.

5. **Reliable Brand (ATB)** ATB is a reputable manufacturer known for durable, high-performance electric motors, often used in industrial and commercial sectors.

6. **Efficient Energy Consumption** A 5.5kW motor is generally more energy-efficient than older or lower-quality alternatives, reducing operational costs over time.

7. **Versatile Applications** Can be used in HVAC systems, water pumps, fans, mixers, and other machinery where a mid-to-high power motor is needed.

8. **Long Lifespan with Proper Maintenance** High-quality construction typically means fewer breakdowns and longer service life compared to cheaper, lower-grade motors.

9. **Available in Different Voltage Ratings** Likely compatible with standard industrial voltage supplies (e.g., 380V, 400V, 415V), depending on the model variant.

10. **Potential for Variable Frequency Drive (VFD) Compatibility** Many industrial motors of this caliber can be paired with VFDs for speed control, further enhancing flexibility.

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1. **Higher Upfront Cost** Compared to single-phase or lower-power motors, a 5.5kW three-phase motor will be more expensive to purchase initially.

2. **Requires Three-Phase Power Supply** Not suitable for locations with only single-phase electricity (common in residential or small commercial setups without dedicated three-phase wiring).

3. **Installation Complexity** Three-phase motors often require professional installation, including proper wiring, grounding, and possibly a dedicated circuit breaker.

4. **Maintenance Requirements** While durable, regular maintenance (lubrication, bearing checks, cooling system inspection) is necessary to prevent failures, especially in harsh environments.

5. **Size and Weight** Larger and heavier than smaller motors, which may complicate installation in space-constrained areas.

6. **Potential Overkill for Light-Duty Use** If the application only requires occasional or light-duty operation (e.g., a small workshop), a lower-power motor (e.g., 2.2kW 3.7kW) might suffice, saving costs.

7. **Noise and Vibration** Higher-power motors can generate more noise and vibration, which may be an issue in sensitive environments (e.g., offices or quiet workshops).

8. **Energy Costs (If Mismatched)** If the motor is significantly larger than needed, it may consume more power than necessary, increasing electricity bills without improving performance.

9. **Limited Availability of Spare Parts** Depending on the region, finding replacement parts for older or niche models may be difficult compared to more common motors.

10. **Potential for Overheating in Poor Ventilation** If installed in an enclosed space without proper airflow, the motor may overheat, reducing efficiency or causing damage.

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The **ATB AF-112M (5.5kW, 3-phase, 4-pole)** is a **high-quality, reliable motor** well-suited for **industrial, commercial, or heavy-duty applications** where consistent power, efficiency, and durability are critical. It excels in scenarios requiring **continuous operation, high torque, or compatibility with three-phase power systems**. However, its **higher cost, installation complexity, and space requirements** make it less ideal for **light-duty, single-phase, or budget-conscious applications**.

If your use case demands **robust performance** (e.g., pumps, compressors, large machinery), this motor is an **excellent investment**. Conversely, if you need a **lower-power, simpler, or more cost-effective solution**, a smaller motor (e.g., 3.7kW 4kW) or a single-phase alternative may be more appropriate.

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- You require **5.5kW (7.5HP) or higher power** for industrial machinery.

- Your setup has **three-phase power** (380V/400V/415V).

- You need **long-term reliability** and are willing to invest in a premium motor.

- The motor will operate **continuously or under heavy loads**.

- Your application is **light-duty or intermittent**, where a **3.7kW 4kW motor** would suffice.

- You only have **single-phase electricity** (opt for a single-phase motor or a phase converter).

- **Budget is a constraint** compare with other brands (e.g., ABB, Siemens, or local manufacturers) for similar performance at a lower cost.

- **Space is limited** verify dimensions before purchase to ensure proper installation.

**Final Verdict:** For **industrial or high-demand applications**, the ATB AF-112M is a **strong, dependable choice**. For **smaller or simpler setups**, a more modest motor may be the better financial decision. Always **match the motor s specifications to your exact load requirements** to maximize efficiency and longevity.

Details:

Industrial Build: Features the rugged AF-series housing for superior heat dissipation and environmental protection. Precision Speed: Operates at 1425 RPM, ideal for applications requiring steady, high-torque output. CAN SHIP COLLECT ON UPS OR FEDEX ACCOUNT, SELL YOUR SURPLUS Premium PLC BUYS ALL TYPES OF NEW AND USED INDUSTRIAL AUTOMATION MRO ATB Austria. Reliability: Manufactured by, a leader in energy-efficient motor solutions.

ATB AF-112M/4K Electric Motor 3-Phase 4-Pole 5.5kW 7.5HP 1425 RPM IEC, NICE MOTOR, SOME MINOR COSMETIC WEAR OTHERWISE IN GOOD WORKING CONDITION, MISSING ELECTRICAL WIRING COVERPLATE This 4-pole induction motor is built to the 112M IEC frame standard, making it a versatile replacement or primary driver for pumps, fans, conveyors, and machining equipment. Condition: USPI - Used Surplus Previously Installed OEM. Key Features: High Performance: Delivers a robust 5.5kW of power.

part #: af112m4k prices

• $340.85-$499.95

specifications oelemot:

• brand: Atb
• mpn: Af-112m/4k
• part type: 5hp Motor
• current type: Ac
• shaft type: Keyed
• ac motor type: Induction/asynchronous
• insulation class: F
• ac phase: Three Phase

seller oelemot:

• rating: 100.0%
• city: Utica, Michigan
• # reviews: 22882

returns oelemot:

• time: 60 Days
• method: Money back
• policy: Returns Accepted
• paid by: Buyer

payments oelemot:

• other
• credit card: Visa
• wallet: Google-pay

offer oelemot:

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

general oelemot:

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

shipping oelemot:

• service: UPS Ground, UPS Next Day Air, UPS 2nd Day Air
• type: Calculated
• cost: $184.33
• transit: 2-6 Days
• class: Standard, One-day, Expedited
• carrier: UPS

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