KLOCKNER MOELLER PS416-INP-400 Eaton

( Brand: Klockner Moeller ), ( Manufacturer Part Number: PS416-INP-400 )

Review KLOCKNER MOELLER Eaton Corporation Ps416inp400 Used

The **Klockner Moeller PS416-INP-400** (also marketed under the Eaton brand as the **PS416INP400**) is a high-performance, compact motor starter designed for demanding industrial applications requiring precise control, reliability, and long-term durability. This three-phase, AC motor starter is engineered to efficiently manage the starting, stopping, and protection of electric motors up to **400 amps** in industrial environments, making it an ideal solution for heavy-duty machinery, conveyor systems, pumps, compressors, and other high-load applications. Built with a robust **IP20** enclosure standard, the PS416-INP-400 ensures protection against solid foreign objects and offers a versatile installation option, though it is not inherently dust- or waterproof, necessitating additional safeguards in harsh outdoor or corrosive settings.

At its core, this motor starter operates on a **direct-on-line (DOL) starting principle**, delivering immediate full-voltage power to the motor upon activation, which simplifies system design while ensuring rapid response times critical for applications where minimal downtime is essential. The starter incorporates a **thermal overload relay** with adjustable trip settings, providing overcurrent protection tailored to the specific motor s rated current, thus preventing damage from sustained overloads, short circuits, or phase imbalances. The overload relay is equipped with **class 10 or class 20 thermal elements**, allowing for fine-tuned protection curves to match the motor s thermal characteristics, enhancing overall system safety and longevity.

One of the standout features of the PS416-INP-400 is its **compact yet robust construction**, featuring a **400-ampere contactor** with **silver-plated copper contacts** that ensure low contact resistance, minimal arcing, and extended service life even under frequent switching cycles. The starter s **auxiliary contacts** (typically four sets, including normally open and normally closed configurations) provide versatile signaling capabilities for integration with PLCs, control panels, or other automation systems, enabling seamless coordination with larger industrial processes. Additionally, the starter s **magnetic coil** is designed for efficient operation, with a **DC or AC voltage option** (depending on the variant), allowing for compatibility with a wide range of control systems while maintaining consistent performance.

For enhanced safety and operational flexibility, the PS416-INP-400 includes **auxiliary protection features** such as **phase failure detection**, which monitors the incoming power supply to prevent motor damage from missing or reversed phases. The starter also supports **remote control capabilities**, allowing for centralized management through pushbuttons, relays, or programmable logic controllers (PLCs), reducing the need for manual intervention in large-scale operations. The **mechanical interlocking** between the contactor and overload relay ensures that the motor cannot restart until the overload condition has been cleared, further mitigating risks of sudden restarts under fault conditions.

In terms of installation and maintenance, the PS416-INP-400 is designed for ease of use, featuring **standardized mounting dimensions** that align with common industrial panel layouts, facilitating quick and secure integration into existing control systems. The starter s **modular design** allows for easy access to components for servicing, with replaceable thermal elements and contacts simplifying routine maintenance tasks. While primarily intended for **indoor applications**, its robust construction and compatibility with additional protective enclosures make it adaptable for semi-protected outdoor installations when paired with appropriate housing solutions.

Overall, the **Klockner Moeller PS416-INP-400 (Eaton PS416INP400)** stands as a reliable, high-capacity motor starter tailored for industrial environments where performance, safety, and efficiency are paramount. Whether deployed in manufacturing plants, mining operations, or energy infrastructure, this starter delivers consistent protection and control, ensuring optimal motor performance while minimizing downtime and operational risks. Its combination of advanced thermal protection, compact design, and versatile connectivity options makes it a preferred choice for engineers and technicians seeking a dependable solution for managing high-power electric motors in demanding applications.

### **Pros and Cons of buying a Klockner Moeller (Eaton) PS416-INP-400 Power Supply Unit**

1. **High Reliability and Durability**

The PS416-INP-400 is a robust industrial-grade power supply designed for continuous operation in demanding environments. Eaton (formerly Klockner Moeller) is a well-established manufacturer with a strong reputation for quality and longevity, making this unit suitable for long-term use in factories, data centers, or critical infrastructure.

2. **Wide Input Voltage Range**

With an input voltage range of **380 480 VAC**, this unit can handle fluctuations in power supply, reducing the need for additional voltage regulation equipment. This flexibility is particularly useful in regions with unstable grid conditions.

3. **High Efficiency and Energy Savings**

The unit operates at high efficiency (typically **95 97%**), minimizing energy waste and reducing operational costs over time. This is beneficial for large-scale applications where power consumption is a significant factor.

4. **Redundancy and Fault Tolerance**

The PS416-INP-400 is designed with redundancy features, allowing it to continue operating even if one component fails (depending on the specific model variant). This enhances system uptime and reduces downtime risks in critical applications.

5. **Compliance with Safety Standards**

The unit meets **IEC/EN 62040-1** and other relevant safety standards, ensuring it is safe for industrial use. It also includes protection features such as **overvoltage, undervoltage, overcurrent, and short-circuit protection**, which help prevent equipment damage.

6. **Modular and Scalable Design**

Eaton s power supplies are often modular, allowing for easy expansion or replacement of components without shutting down the entire system. This makes maintenance and upgrades more straightforward.

7. **Low Maintenance Requirements**

Due to its robust construction and efficient cooling (typically forced air or liquid-cooled variants), the unit requires minimal maintenance compared to less durable alternatives.

8. **Compatibility with Industrial Loads**

The **400 kVA** capacity makes it suitable for powering large industrial motors, HVAC systems, data centers, or other high-demand applications. Its ability to handle **three-phase loads** ensures stable performance in industrial settings.

9. **Long Warranty Period**

Eaton typically offers **3 5-year warranties** on industrial power supplies, providing peace of mind regarding long-term reliability.

10. **Global Availability and Support**

As part of a major industrial manufacturer, this unit benefits from widespread availability of spare parts, technical support, and service networks worldwide.

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1. **High Initial Cost**

Industrial-grade power supplies like the PS416-INP-400 are significantly more expensive than standard commercial or consumer-grade units. The upfront investment may be prohibitive for small businesses or budget-conscious projects.

2. **Complex Installation and Configuration**

Due to its advanced features (e.g., redundancy, customizable settings), installation may require specialized knowledge. Improper setup could lead to inefficiencies or failures, necessitating professional assistance.

3. **Bulkiness and Space Requirements**

The unit is large and heavy (typically **several hundred kilograms**), requiring dedicated space in a controlled environment (e.g., a machine room or substation). This may not be feasible in compact or space-constrained setups.

4. **Dependence on Professional Maintenance**

While maintenance is minimal, critical components (e.g., capacitors, transformers) may require periodic inspections by trained technicians. Failure to maintain the unit properly could shorten its lifespan.

5. **Potential for Overkill in Smaller Applications**

If the application does not require **400 kVA** of power, investing in this unit may be unnecessary. A smaller, more cost-effective power supply could suffice for less demanding tasks.

6. **Limited Customization for Non-Standard Requirements**

While the unit is highly capable, highly specialized applications (e.g., unique voltage profiles, custom protection schemes) may require additional modifications or supplementary equipment.

7. **Energy Loss in Partial Load Conditions**

Some high-efficiency power supplies (including this model) may not operate at peak efficiency when running at **low load levels**, leading to slightly higher energy consumption in such scenarios.

8. **Potential for Obsolescence**

Industrial equipment can become outdated over time as newer, more efficient models are introduced. While Eaton is a stable manufacturer, future upgrades may require compatibility checks.

9. **Noise and Cooling Considerations**

Forced-air-cooled units can generate noticeable noise, which may be an issue in sensitive environments. Liquid-cooled variants reduce noise but add complexity and cost.

10. **Supply Chain and Lead Times**

As a high-demand industrial component, availability may sometimes be affected by supply chain disruptions, leading to longer lead times for replacements or upgrades.

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### **Conclusion**

The **Klockner Moeller (Eaton) PS416-INP-400** is a **premium industrial power supply unit** ideal for applications requiring **high reliability, redundancy, and efficiency**. Its strengths lie in its **durability, wide input range, compliance with safety standards, and scalability**, making it a **strong choice for factories, data centers, and critical infrastructure**.

However, its **high cost, complex installation, and space requirements** may not justify the investment for smaller or less demanding applications. Businesses should carefully assess their **power needs, budget, and operational environment** before purchasing.

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### **Recommendation**

- You operate in an **industrial or mission-critical environment** where uptime is non-negotiable.

- Your application requires **high power capacity (400 kVA) with three-phase support**.

- You can justify the **upfront cost** based on long-term energy savings and reduced downtime.

- You have **dedicated space and technical expertise** for installation and maintenance.

- Your power requirements are **below 200 300 kVA**, in which case a smaller, more affordable unit (e.g., Eaton s PS316 series) may suffice.

- Budget constraints make the **initial cost prohibitive**; explore **commercial-grade or modular power solutions** as interim options.

- Your environment is **space-limited or noise-sensitive**, requiring a quieter or more compact unit.

For most **large-scale industrial, data center, or high-reliability applications**, the **PS416-INP-400 remains one of the best-in-class power supply units** available, offering a **balance of performance, durability, and support**. However, a thorough **cost-benefit analysis** is essential to ensure it aligns with your specific needs.

Details:

Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. All products are guaranteed to be working but may show signs of use if purchasing a used product. Call to use a shipping service other than the ones listed. Sells new and surplus product develops channels to purchase such.

part #: ps416inp400 prices

• $228.51-$456.00

specifications sensoindustria:

• brand: Klockner Moeller
• mpn: Ps416-inp-400

offer sensoindustria:

• options: Ship-to-home
• availability: In Stock
• quantity: 1
• started: April 28, 2026
• sold: 0

payments sensoindustria:

• wallet: Apple-pay
• credit card: Discover
• other

seller sensoindustria:

• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 2016 24
• rating: 99.7%

general sensoindustria:

• condition: Used
• PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules

returns sensoindustria:

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

shipping sensoindustria:

• type: Fixed
• class: Standard
• cost: $12.90
• transit: 23-37 Days
• service: Standard

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