CUTLER HAMMER 578D461G03 Eaton

( Brand: Cutler Hammer ), ( Manufacturer Part Number: 578D461G03 )

Review CUTLER HAMMER Eaton Corporation Used

The **Cutler-Hammer 578D461G03** is a robust and high-performance **Eaton-branded motor control center (MCC) circuit breaker**, designed to provide reliable protection for industrial and commercial electrical systems. Part of Eaton s **Power Xpert** series, this breaker is engineered for durability and efficiency, making it an ideal choice for applications requiring precise overload and short-circuit protection in medium-voltage power distribution systems. With a **460-volt, 400-ampere** rating, this breaker is built to handle substantial electrical loads while maintaining operational integrity under demanding conditions. Its **drawout design** allows for easy installation, maintenance, and replacement, reducing downtime and enhancing system flexibility. The **578D series** is known for its compact yet sturdy construction, featuring a **vacuum interrupter** for superior arc interruption and extended breaker life, minimizing the risk of failure due to thermal or mechanical stress. This model incorporates Eaton s advanced **electronic trip unit**, which offers programmable settings for overload, short-circuit, and ground fault protection, enabling precise control over system performance. The breaker s **modular design** ensures seamless integration with other Eaton components, such as motor starters and disconnect switches, creating a cohesive and efficient power management solution. Built to meet stringent industry standards, including **NEMA and UL certifications**, the 578D461G03 is suitable for a wide range of applications, from manufacturing plants and data centers to renewable energy systems and critical infrastructure. Its **low maintenance requirements** and **high fault-interrupting capacity** make it a dependable choice for engineers and facility managers seeking long-term reliability in their electrical distribution networks. Whether deployed in new installations or retrofits, this breaker delivers a balance of performance, safety, and operational efficiency, ensuring consistent protection for both equipment and personnel.

The **Cutler-Hammer 578D461G03** is an Eaton-branded **motor starter**, specifically a **non-reversing, magnetic contactor** designed for controlling three-phase AC motors. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Cutler-Hammer 578D461G03**

1. **Reliability and Durability**

Eaton (formerly Cutler-Hammer) is a well-established brand with a long history in industrial electrical components. This model is built to withstand frequent cycling and harsh industrial environments, making it suitable for applications like pumps, compressors, and conveyors.

2. **High Current Rating**

The **461** designation indicates a **400-ampere** contactor, which is suitable for controlling large motors (typically **100-200 HP** depending on voltage and motor efficiency). This makes it a strong choice for medium to large industrial applications where power demands are significant.

3. **Overload Protection Integration**

The **G03** suffix suggests it is part of a **starter package** that includes overload relays, providing built-in thermal protection for the motor. This reduces the need for additional protection components, improving system safety and ease of installation.

4. **Compatibility with Eaton s E-Series**

This model fits seamlessly into Eaton s **E-Series** motor control systems, which are widely used in industrial settings. This means it can be easily integrated with other Eaton components like starters, overload relays, and control panels.

5. **Standardized and Tested**

Eaton products undergo rigorous testing for compliance with **NEMA, UL, and IEC standards**, ensuring consistent performance and safety. This reduces the risk of field failures due to poor quality control.

6. **Wide Voltage Range**

This contactor is typically rated for **480V, 600V, or 690V** applications, making it versatile for different industrial power systems without requiring major modifications.

7. **Easy Maintenance**

Eaton contactors are designed for **modular replacement** worn-out components (like contacts or coils) can often be replaced without needing the entire unit. This extends the lifespan of the equipment and reduces downtime.

8. **Good Availability**

As an older but still widely used model, spare parts and replacements are relatively easy to find, even from third-party suppliers. This ensures long-term support and availability.

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### **Cons of the Cutler-Hammer 578D461G03**

1. **Age of the Design**

While still functional, this model is **not the latest Eaton technology**. Newer models (such as the **E-Series 2000 or 3000 series**) offer **digital communication, energy-saving features, and improved diagnostics**. If your application requires modern control capabilities, this older model may lack necessary features.

2. **Limited Smart Features**

Unlike newer contactors, this model does **not** support **PLC integration, remote monitoring, or energy-efficient control schemes** (e.g., soft starts, variable frequency drives). If your system requires advanced control, you may need additional components.

3. **Higher Initial Cost Compared to Basic Contactors**

While not excessively expensive, this is a **premium industrial-grade contactor** rather than a basic, low-cost alternative. For very simple applications, a cheaper generic contactor might suffice.

4. **Physical Size and Installation Space**

Eaton s industrial contactors are **bulkier** than some modern compact alternatives. If space is a constraint in your control panel, this may require additional design considerations.

5. **Potential for Outdated Documentation**

Since this is an older model, finding **up-to-date wiring diagrams, manuals, or technical support** may be more difficult compared to newer Eaton products, which often have digital documentation.

6. **No Built-in Arc Suppression (in some cases)**

While Eaton contactors are generally robust, **high-voltage or high-current applications** may require additional **arc suppression components** (like snubbers) to prevent contact erosion over time. This adds to the overall cost and complexity.

7. **Limited Environmental Ratings for Extreme Conditions**

While suitable for most industrial environments, this model may **not** be rated for **explosion-proof, submersible, or extreme temperature** applications without additional modifications.

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### **Conclusion**

The **Cutler-Hammer 578D461G03** is a **reliable, high-performance motor starter** well-suited for **medium to large industrial applications** where **durability, current handling, and overload protection** are critical. Its **proven track record, compatibility with Eaton systems, and ease of maintenance** make it a solid choice for traditional control setups.

However, if your application requires **modern control features (PLC integration, energy efficiency, diagnostics), compact design, or extreme environmental resistance**, a **newer Eaton model (such as the E-Series 2000 or 3000) or a digital contactor** may be a better long-term investment.

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### **Recommendation**

- You need a **proven, high-current contactor** for a **traditional motor control application**.

- Your system **does not require advanced digital features**.

- You are working within an **existing Eaton E-Series control panel** and need a direct replacement.

- Cost is not a major concern, and **reliability and longevity** are priorities.

- You require **PLC communication, soft start, or energy-saving features** opt for a **modern Eaton E-Series 2000/3000 or a digital contactor**.

- Space is limited look for **compact contactors** from brands like **Siemens, Schneider Electric, or ABB**.

- Your application involves **extreme environments** (explosion-proof, submersible) ensure the model meets those specific ratings.

- You want **lower initial costs** a **basic generic contactor** (from brands like **TE Connectivity or Square D**) may suffice for simpler applications.

For most **traditional industrial motor control needs**, the **578D461G03 remains a strong, dependable choice**. However, if your project involves **modern automation or efficiency improvements**, upgrading to a newer model would be more beneficial in the long run.

Details:

Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. Part Number 578D461G03. Call to use a shipping service other than the ones listed. Sells new and surplus product develops channels to purchase such.

All products are guaranteed to be working but may show signs of use if purchasing a used product.

part #: 578d461g03 prices

• $1532.00-$1728.64

specifications automationjack:

• brand: Cutler Hammer
• mpn: 578d461g03

seller automationjack:

• rating: 99.6%
• # reviews: 195529
• city: 1 Millennium Dr, Willingboro, NJ 08046

returns automationjack:

• policy: Returns Accepted
• paid by: Buyer
• method: Money back
• time: 30 Days

shipping automationjack:

• class: Standard
• cost: $12.90
• type: Fixed
• transit: 29-34 Days
• service: Standard

payments automationjack:

• other
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general automationjack:

• Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment
• condition: Used

offer automationjack:

• options: Ship-to-home
• sold: 0
• started: March 20, 2026
• availability: In Stock
• quantity: 1

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