ALLEN BRADLEY 40495-458-06 Automation

( Brand: Allen Bradley ), ( Manufacturer Part Number: 40495-458-06 )

Review ALLEN BRADLEY 4049545806 Used

The **Allen-Bradley 40495-458-06 (4049545806)** is a high-performance, industrial-grade **48-volt DC power supply module** designed for use in Rockwell Automation s **CompactLogix, ControlLogix, and other modular control systems**. This compact yet robust unit is engineered to deliver a reliable and stable power source for demanding automation applications, ensuring consistent operation in harsh environments where electrical interference, temperature fluctuations, and mechanical stress are common. With an output voltage of **48 volts DC**, it provides sufficient power to drive a wide range of I/O modules, communication devices, and other low-voltage control components within a PLC system. The module features a **6-ampere current capacity**, allowing it to support multiple high-demand devices simultaneously while maintaining efficiency and minimizing heat dissipation. Its **1/8 DIN rail mount** design enables seamless integration into standard industrial control panels, making it ideal for applications in manufacturing, process control, and automation systems where space optimization is critical.

Constructed with **industrial-grade materials**, the 40495-458-06 is built to withstand extreme operating conditions, including temperatures ranging from **-20 C to 60 C**, ensuring reliable performance in environments such as factories, outdoor control cabinets, or marine applications. The module incorporates **overvoltage, overcurrent, and short-circuit protection**, safeguarding both the power supply and connected devices from potential damage due to electrical faults. Its **plug-and-play compatibility** with Rockwell Automation s modular systems simplifies installation and reduces downtime, as it requires minimal configuration once properly wired. Additionally, the unit s **low ripple and noise output** ensures clean power delivery, which is essential for maintaining the accuracy and stability of sensitive control signals in automation processes. Whether used in a new control system installation or as a replacement for a failing power module, the 40495-458-06 exemplifies Rockwell Automation s commitment to durability, performance, and ease of integration in industrial automation.

### **Pros and Cons of Buying Allen-Bradley 40495-458-06 (4049545806)**

#### **Overview**

The **Allen-Bradley 40495-458-06** is a **48-volt DC power supply module** designed for use in **CompactLogix, ControlLogix, and other Rockwell Automation PLC systems**. It provides **48V DC power** to field devices, sensors, and other components in industrial control applications.

---

### **Pros**

1. **Compatibility with Rockwell Automation Systems**

- Designed specifically for **CompactLogix, ControlLogix, and other AB PLC platforms**, ensuring seamless integration without additional adapters.

- Works with **Allen-Bradley s modular power distribution units**, making it easy to expand or reconfigure systems.

2. **Reliable Power Output**

- Provides a **stable 48V DC output** with **current ratings of 1.5A** (depending on model variants), sufficient for most industrial control applications.

- Built with **Allen-Bradley s quality standards**, ensuring durability in harsh environments (temperature, vibration, electrical noise).

3. **Modular and Easy to Replace**

- Part of a **plug-and-play power supply family**, allowing quick replacement if damaged without disrupting the entire system.

- Can be **hot-swapped** in many applications, reducing downtime.

4. **Wide Operating Temperature Range**

- Typically operates between **-20 C to 60 C**, making it suitable for **industrial, outdoor, or temperature-varying environments**.

- Some variants may have extended temperature ranges for extreme conditions.

5. **Backward and Forward Compatibility**

- Works with **older and newer Rockwell Automation firmware versions**, reducing the risk of obsolescence.

- Often **compatible with third-party PLCs** that use similar power profiles (though always verify before use).

6. **Low Maintenance Requirements**

- No moving parts, reducing wear and tear.

- Long **mean time between failures (MTBF)** due to solid-state design.

7. **Availability of Spare Parts & Support**

- Widely stocked by **Rockwell Automation distributors and authorized resellers**, ensuring easy replacement.

- Extensive **technical documentation and troubleshooting guides** available from Rockwell.

8. **Safety Features**

- Includes **overcurrent protection** to prevent damage from short circuits.

- Designed to **comply with industrial safety standards** (UL, CE, etc.).

---

### **Cons**

1. **Limited Current Capacity**

- The **1.5A output** may be insufficient for **high-power applications** (e.g., large motors, high-current sensors).

- Requires **additional power supplies or current-sharing modules** if more power is needed.

2. **Potential Obsolescence Risk**

- While widely used, **Allen-Bradley is phasing out some older models** in favor of newer power supplies (e.g., **48V DC modules with higher efficiency**).

- Future **firmware updates or PLC compatibility** may become an issue if the system is kept long-term.

3. **Higher Cost Compared to Generic Alternatives**

- **Branded Allen-Bradley parts are more expensive** than **generic or aftermarket power supplies** from non-OEM manufacturers.

- May require **additional licensing or support contracts** for warranty claims.

4. **Dependence on Rockwell Ecosystem**

- If the **PLC or control system is not Rockwell-based**, compatibility may be **limited or require additional adapters**.

- **Third-party support** (e.g., for troubleshooting) may be less robust than Rockwell s official channels.

5. **Physical Size and Installation Constraints**

- **Modular design requires space** in the power distribution unit (PDU).

- **Not all enclosures or mounting racks** may accommodate it without modifications.

6. **Potential for Counterfeit Parts**

- Since it s a **high-demand component**, there is a risk of **fake or refurbished units** entering the market.

- **Always purchase from authorized distributors** (e.g., Grainger, RS Components, Rockwell s website) to avoid counterfeits.

7. **Limited Customization Options**

- Unlike some **programmable power supplies**, this is a **fixed 48V DC output** with no adjustable settings.

- Cannot be modified for **different voltage or current requirements**.

8. **Warranty and Support Dependence on Rockwell**

- **Warranty claims and technical support** are handled through Rockwell Automation, which may have **longer response times** compared to smaller vendors.

- **Extended warranties** may incur additional costs.

---

### **Conclusion**

The **Allen-Bradley 40495-458-06** is a **reliable, well-supported, and widely compatible** power supply module ideal for **Rockwell Automation PLC systems**. Its **modular design, stability, and industrial-grade build** make it a **strong choice for maintenance, repair, and replacement (MRR) applications** where compatibility with existing systems is critical.

However, its **limited current capacity, higher cost, and potential obsolescence risk** mean it may **not be the best long-term solution** for high-power or future-proofing needs. If the application **requires higher current or greater flexibility**, alternative power supplies (e.g., **Rockwell s newer 48V DC modules, Siemens, or third-party industrial-grade power supplies**) should be considered.

For **short-term fixes, maintenance, or applications where Rockwell compatibility is non-negotiable**, this part remains a **safe and effective choice**.

---

### **Recommendation**

- You need a **direct replacement** for a failing Allen-Bradley power supply in a **Rockwell PLC system**.

- Your application **requires 48V DC at 1.5A or less** and **modular reliability**.

- You prioritize **brand support, warranty, and ease of integration** over cost savings.

- You need **higher current output** (e.g., >2A), in which case a **current-sharing module or a higher-capacity power supply** (e.g., **40495-458-12 for 2A**) may be needed.

- You are **future-proofing a system** and can afford a **newer, more efficient power supply** (e.g., **Rockwell s 48V DC modules with better efficiency ratings**).

- **Cost is a major concern**, and you can verify **third-party compatibility** (e.g., **Siemens, Schneider, or industrial-grade generic power supplies**).

- **Authorized Rockwell Automation distributors** (e.g., **Grainger, RS Components, Rockwell s website, or local automation suppliers**).

- **eBay (with caution)** Only purchase from **verified sellers with return policies** to avoid counterfeits.

- **Refurbished from trusted sources** (e.g., **Rockwell-certified refurbishers**) if cost is a factor.

**For most CompactLogix/ControlLogix users needing a direct replacement, the 40495-458-06 is a solid, dependable choice.** However, if the system is **critical or long-term**, evaluating **newer power supply options** may be worthwhile to avoid future compatibility issues. Always **test compatibility** with your specific PLC firmware before installation.

Details:

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

part #: 4049545806 prices

• $17.99-$27.00

specifications automationjack:

• brand: Allen Bradley
• mpn: 40495-458-06

returns automationjack:

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

offer automationjack:

• sold: 0
• quantity: 1
• options: Ship-to-home
• started: February 18, 2026
• availability: In Stock

seller automationjack:

• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 190670
• rating: 99.5%

shipping automationjack:

• class: Standard
• cost: $12.90
• service: Standard
• type: Fixed
• transit: 30-35 Days

general automationjack:

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

payments automationjack:

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

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