CUTLER HAMMER 658C651G02 Eaton

( Brand: Cutler Hammer ), ( Manufacturer Part Number: 658C651G02 )

Review CUTLER HAMMER Eaton Corporation Used

The **Cutler-Hammer 658C651G02** is a robust and versatile **Eaton-branded motor control center (MCC) circuit breaker**, designed to deliver reliable protection and control for medium-voltage industrial applications. Part of Eaton s extensive line of power management solutions, this breaker is engineered to meet stringent industrial standards, ensuring optimal performance in demanding environments where electrical safety, efficiency, and durability are paramount. With a **600-ampere (A) continuous current rating**, this breaker is well-suited for controlling and protecting motors, transformers, and other high-power loads in manufacturing plants, commercial facilities, and industrial complexes. Its **compact yet sturdy construction** allows for efficient space utilization in electrical panels while maintaining high levels of thermal and mechanical integrity.

The **658C651G02** features Eaton s advanced **molded-case circuit breaker (MCCB) technology**, incorporating a **triple-pole design** for balanced phase protection, which minimizes voltage unbalance and reduces stress on connected equipment. This breaker is equipped with a **mechanical trip unit**, providing precise overload and short-circuit protection through thermal and magnetic trip elements that respond instantly to fault conditions. The **adjustable trip settings** allow for customization to match specific load requirements, ensuring optimal protection without unnecessary nuisance tripping. Additionally, the breaker includes a **manual reset mechanism**, enabling quick restoration of power after a fault event, while its **auxiliary contacts** facilitate integration with control systems for automated monitoring and response.

Built to withstand harsh industrial conditions, the **658C651G02** features a **durable, corrosion-resistant enclosure** that protects internal components from moisture, dust, and temperature fluctuations, ensuring long-term reliability even in challenging environments. Its **low-arcing design** enhances safety by minimizing the risk of electrical faults, while the **high-interrupting rating** (typically up to 100,000 amperes) provides robust protection against severe short circuits. The breaker also complies with **IEC and NEMA standards**, making it compatible with global electrical infrastructure and ensuring seamless integration into existing or new power distribution systems.

For enhanced operational efficiency, the **658C651G02** can be paired with Eaton s **remote control and monitoring solutions**, allowing for centralized supervision of electrical loads, predictive maintenance, and energy management. Its **modular design** further simplifies installation and maintenance, as it can be easily expanded or reconfigured to accommodate evolving industrial needs. Whether deployed in a high-demand manufacturing facility, a data center, or an energy-intensive commercial building, this circuit breaker exemplifies Eaton s commitment to delivering **high-performance, dependable, and future-proof electrical protection solutions**. With its combination of precision engineering, adaptability, and industrial-grade resilience, the **Cutler-Hammer 658C651G02** stands as a cornerstone of modern power management systems.

### **Pros and Cons of buying a Cutler-Hammer 658C651G02 (Eaton) Motor Starter**

The **Cutler-Hammer 658C651G02** is a **3-phase, reduced-voltage, soft-start motor starter** designed for controlling AC induction motors. It is part of Eaton s **PowerXact** series and is commonly used in industrial applications for motor protection, control, and energy efficiency. Below is a detailed analysis of its advantages and disadvantages.

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### **Pros**

1. **Energy Efficiency & Reduced Voltage Start**

- The starter uses a **reduced-voltage soft-start method**, which minimizes inrush current (up to 300% reduction compared to direct-on-line starts).

- This reduces mechanical stress on the motor, drive train, and electrical system, extending equipment lifespan.

- Lower inrush current also reduces voltage dips, improving stability in industrial power networks.

2. **Motor & System Protection**

- Includes **overload protection** (thermal overload relays) to prevent motor damage from overheating.

- Features **short-circuit and ground fault protection**, enhancing safety in fault conditions.

- Some models offer **phase loss and phase reversal protection**, preventing motor damage from electrical issues.

3. **Durability & Reliability**

- Built with **high-quality components** (Eaton s reputation for industrial-grade reliability).

- **Rugged enclosure** (typically NEMA 1 or NEMA 4X, depending on model) for protection against dust, moisture, and corrosion.

- **Long operational lifespan** with minimal maintenance requirements compared to traditional star-delta starters.

4. **Smooth Motor Acceleration**

- Gradual voltage ramp-up reduces mechanical shock, improving the lifespan of belts, gears, and connected machinery.

- Useful for applications with **high-inertia loads** (e.g., pumps, fans, conveyors) where abrupt starts cause stress.

5. **Compatibility & Flexibility**

- Works with **standard 3-phase motors** (typically 200 500 HP, depending on voltage rating).

- Can be integrated with **PLCs, VFD controls, or manual pushbuttons** for automation.

- Available in **single-phase and three-phase variants**, making it versatile for different setups.

6. **Reduced Maintenance Costs**

- Fewer mechanical wear issues compared to traditional star-delta starters (which rely on contactors and relays).

- **No brushes or commutators** (unlike DC motor starters), reducing wear-and-tear over time.

7. **Compliance with Industry Standards**

- Meets **NEMA, UL, and IEC standards**, ensuring safety and regulatory compliance.

- Suitable for **hazardous locations** (if specified in the model variant).

8. **Cost-Effective Long-Term Solution**

- While the upfront cost may be higher than basic contactor starters, the **energy savings and reduced downtime** justify the investment over time.

- Lowers **energy bills** by reducing peak demand charges (due to lower inrush current).

---

### **Cons**

1. **Higher Initial Cost**

- More expensive than **basic contactor starters or star-delta starters**, making it a less attractive option for budget-conscious buyers.

- Requires **higher upfront capital expenditure** compared to simpler motor control solutions.

2. **Complex Installation & Configuration**

- **Not plug-and-play**; requires **proper wiring, programming, and commissioning** by a qualified electrician or control engineer.

- Some models may need **additional sensors or communication interfaces** (e.g., Modbus, Profibus) for advanced control, adding complexity.

3. **Limited Availability of Spare Parts**

- Eaton has **discontinued some older Cutler-Hammer models**, making spare parts (e.g., relays, contactors) harder to source.

- **Compatibility issues** may arise if upgrading from older systems.

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

- For **very small motors (under 50 HP) or simple applications**, a **basic contactor starter** may suffice, making the 658C651G02 unnecessarily expensive.

- If the motor already has **low inrush current**, the benefits of a soft start may not justify the cost.

5. **Dependence on Power Quality**

- **Voltage fluctuations or poor power quality** can affect performance, leading to **erratic starts or false trips**.

- May require **additional power conditioning equipment** in unstable electrical environments.

6. **Learning Curve for Maintenance**

- Technicians unfamiliar with **Eaton s PowerXact series** may need training to diagnose issues.

- **Self-diagnostic features** are helpful, but troubleshooting still requires expertise.

7. **Size & Space Requirements**

- Larger and heavier than some compact motor starters, requiring **dedicated panel space** in control cabinets.

- Not ideal for **space-constrained applications** where compact solutions are preferred.

8. **Potential for Overheating in High-Ambient Temperatures**

- Performance may degrade in **extreme heat** (above 40 C/104 F) if not properly ventilated.

- Some models may require **derating** in high-temperature environments.

9. **Limited Customization for Special Applications**

- While versatile, it may **lack specialized features** needed for **highly customized industrial processes** (e.g., regenerative braking, advanced energy recovery).

- For such cases, a **VFD (Variable Frequency Drive)** might be a better long-term solution.

10. **Depreciation Over Time**

- As **VFDs and solid-state motor controllers** become more affordable, older mechanical starters like this may **lose value** in resale markets.

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### **Conclusion**

The **Cutler-Hammer 658C651G02 (Eaton PowerXact)** is a **high-performance, energy-efficient motor starter** ideal for applications where **reduced inrush current, motor protection, and smooth acceleration** are critical. It excels in **industrial environments with high-inertia loads, frequent starts/stops, or sensitive equipment** where mechanical stress must be minimized.

However, its **higher cost, complexity, and maintenance requirements** make it **less suitable for small-scale or simple applications**. If the application does not require **soft-start benefits**, a **basic contactor starter or star-delta starter** may be a more cost-effective alternative.

For **large industrial facilities, pump systems, conveyors, or applications with strict energy efficiency requirements**, the 658C651G02 provides **long-term reliability and cost savings** despite the initial investment.

---

### **Final Recommendation**

You are controlling **high-HP motors (100 HP and above)** with **high inrush current risks**.

Your application requires **reduced mechanical stress, extended motor lifespan, and energy savings**.

You operate in an **industrial setting where motor protection and reliability are critical**.

You have **budget flexibility** and can justify the upfront cost with long-term benefits.

You are working with **small motors (under 50 HP)** where a basic starter would suffice.

Your budget is **extremely tight**, and you can opt for a **cheaper contactor or star-delta starter**.

Your electrical system has **poor power quality**, and additional conditioning is needed.

You lack **technical expertise** for installation, programming, and maintenance.

You anticipate **future upgrades** to **VFDs or advanced control systems**, making this starter obsolete sooner.

- For **smaller motors**, a **NEMA contactor starter** or **star-delta starter** may be sufficient.

- For **highly dynamic applications**, a **VFD (Variable Frequency Drive)** offers **better control and energy savings** but at a higher cost.

- If **space is a constraint**, consider **compact motor starters** or **solid-state relays** with soft-start capabilities.

The **658C651G02 is a premium choice** for **industrial motor control** where **efficiency, protection, and longevity** are priorities. For most **smaller or simpler applications**, a **simpler starter** will be more economical. Always **conduct a cost-benefit analysis** based on your specific motor load, electrical environment, and budget constraints.

Details:

Sells new and surplus product develops channels to purchase such. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. Part Number 658C651G02. Call to use a shipping service other than the ones listed.

EATON CORPORATION 658C651G02 / USED DISCONTINUED BY MANUFACTURER,COIL,WH 230VAC/200VDC CLOSE COILFOR AMPGARD LF. All products are guaranteed to be working but may show signs of use if purchasing a used product.

part #: 658c651g02 price

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