LIEBERT 13-794916-05 Ethernet Communication Circuit Board Card

( Brand: Liebert ), ( Manufacturer Part Number: 13-794916-05 ), ( Part Type: Circuit Board Card )

Review LIEBERT Ethernet Communication Circuit Board Card 1379491605

The **Liebert 13-794916-05 Ethernet Communication Circuit Board Card (Part Number 1379491605)** is a precision-engineered component designed to enhance the reliability and performance of Emerson s Liebert NX series of uninterruptible power supplies (UPS). This critical circuit board serves as the backbone of the UPS s Ethernet communication interface, enabling seamless integration with network management systems, monitoring software, and enterprise-level power infrastructure. Built to exacting standards, the card features a robust, high-density printed circuit board (PCB) assembly that incorporates advanced digital signal processing and Ethernet protocol handling capabilities, ensuring real-time data transmission for monitoring battery status, load conditions, and system alerts. Its compact yet durable design allows for efficient installation within the UPS enclosure while maintaining full compatibility with standard Ethernet (RJ-45) connectivity, supporting speeds up to 10/100 Mbps for optimal network performance. The card is engineered to withstand the demanding operational environment of data centers, server rooms, and industrial facilities, where uptime and data integrity are paramount. With built-in diagnostics and fault isolation features, this component helps administrators quickly identify and resolve communication issues, minimizing downtime and ensuring continuous power protection. Whether deployed in standalone UPS systems or as part of a larger power distribution network, the **Liebert 13-794916-05** circuit board card exemplifies Emerson s commitment to innovation and dependability, providing a seamless bridge between power infrastructure and networked monitoring solutions.

### **Pros and Cons of buying a Liebert 13-794916-05 Ethernet Communication Circuit Board Card (Part #1379491605)**

#### **Pros**

1. **Compatibility with Liebert UPS Systems** This circuit board is designed specifically for certain models of Liebert UPS units (such as the **PX 1500-3000VA, PX 3000-6000VA, or other Ethernet-enabled models**). It ensures proper communication between the UPS and monitoring software, preventing compatibility issues.

2. **Enhanced Monitoring and Control** The Ethernet communication module allows for remote monitoring, real-time status updates, and automated control via network management tools (e.g., **Liebert GX, PowerAlert, or third-party SNMP-based systems**). This improves efficiency in data centers, critical facilities, or enterprise environments.

3. **Reliability in Critical Applications** Since this is an OEM (Original Equipment Manufacturer) part, it is built to the same high standards as the original component, reducing the risk of failure compared to aftermarket knockoffs.

4. **Ease of Replacement** Replacing a faulty communication board is often simpler than repairing a damaged motherboard or main control unit, making it a cost-effective solution for troubleshooting.

5. **Future-Proofing** Ethernet-based communication supports modern IT infrastructure trends, such as **IP-based monitoring, cloud integration, and advanced alerting systems**, ensuring long-term usability.

6. **Warranty Coverage (If Purchased from Authorized Dealer)** If bought from an **authorized Liebert distributor or Emerson representative**, the part may come with a warranty, providing peace of mind against defects.

7. **Prevents Software Lockouts** A failing communication board can sometimes cause the UPS to lose connectivity with management software, leading to missed alerts or shutdowns. Replacing it restores full functionality.

---

#### **Cons**

1. **High Cost Compared to Alternatives** As an OEM part, the **Liebert 13-794916-05** is significantly more expensive than generic Ethernet modules or third-party replacements. For some users, this may not be justified if the UPS is no longer in active use.

2. **Limited Availability Outside Authorized Channels** Unlike generic components, this part is not widely stocked in bulk electronics stores or eBay. Purchasing may require ordering through **Emerson s official channels, specialized UPS repair shops, or certified refurbishers**, which can add delays.

3. **Potential Overkill for Basic Setups** If the UPS is used in a **non-critical, low-budget environment** where basic RS-232 or USB monitoring suffices, the Ethernet module may be unnecessary, making the purchase an unnecessary expense.

4. **Risk of Counterfeit Parts** If bought from an **unverified seller**, there is a chance of receiving a **fake or low-quality replica**, which could fail prematurely or not work at all. Always verify the seller s reputation.

5. **Technical Complexity in Installation** Replacing a communication board may require **basic soldering skills, proper grounding, or familiarity with UPS internals**. Improper installation could damage the UPS or void warranties.

6. **Depreciation Over Time** Older Liebert UPS models may become obsolete, and while the Ethernet board itself may still function, the lack of software support for newer monitoring tools could reduce its long-term value.

7. **Lead Times for Replacement** Since this is a **specialized component**, stock may not be readily available, leading to **extended wait times** (weeks or even months) for delivery, especially if ordering from Emerson directly.

---

### **Conclusion**

The **Liebert 13-794916-05 Ethernet Communication Circuit Board Card** is a **critical replacement part for maintaining network connectivity and monitoring capabilities** in compatible Liebert UPS systems. It is ideal for **data centers, mission-critical facilities, or enterprise environments** where reliable communication is essential.

However, the **high cost, limited availability, and potential overkill for non-critical applications** make it a **less ideal purchase** for casual users or those running older UPS units without active monitoring needs.

If the UPS is **still under warranty or actively used in a critical setup**, the board is a **necessary investment** to prevent downtime. If the UPS is **nearing end-of-life or used in a low-priority setting**, evaluating **third-party alternatives or simpler communication methods** (e.g., USB or serial) may be more cost-effective.

---

### **Recommendation**

1. **Verify Compatibility** Confirm that your **specific Liebert UPS model** (check the serial number or manual) requires this exact part number. Some models may use a different Ethernet module (e.g., **13-794916-04** or **13-794916-06**).

2. **Purchase from an Authorized Source**

- **Emerson s official website** ( Emerson Network Power (https://www.emerson.com))

- **Certified Liebert distributors** (e.g., **UPS-Online, UPS-Exchange, or local Emerson partners**)

- **Trusted refurbished suppliers** (if buying used, ensure they provide a warranty)

3. **Consider Third-Party Options (If Budget is a Concern)**

- Some **generic Ethernet modules** (e.g., **RS-485 to Ethernet converters**) may work as a temporary fix, though they may lack full compatibility.

- Check for **used/refurbished units** from reputable sellers (e.g., eBay with positive feedback, but exercise caution).

4. **DIY vs. Professional Installation**

- If comfortable with **basic electronics**, replacing the board yourself is feasible (follow Liebert s service manual).

- For **complex UPS models or warranty concerns**, consult a **certified Liebert technician** to avoid voiding warranties.

5. **Evaluate Long-Term Needs**

- If the UPS is **old and approaching end-of-life**, consider **upgrading to a newer model** with built-in Ethernet support rather than relying on a single failing component.

- If monitoring is **not critical**, downgrading to a **USB or serial-based model** may suffice.

### **Final Verdict**

Your UPS **requires Ethernet communication** for monitoring/control.

You **need a reliable, OEM-replacement part** to avoid compatibility issues.

The UPS is **mission-critical**, and downtime is unacceptable.

The UPS is **not actively monitored**, making the board unnecessary.

You are **operating on a tight budget** and can use a simpler communication method.

The UPS is **old and near replacement**, making the part a short-term fix.

**Best Practice:** Always **back up UPS settings** before replacement and **test the new board** before full deployment to ensure proper functionality.

Details:

Upstate Breaker Wholesale provides a 1 year warranty on this item. Shipping Packaged Items. Our rates may vary from what is shown. Please reach out if you would like a precise quote.

Is a business location or not. FA ROOM - BOX 123C. We combine all shipping. Have A Question.

Warranty begins on date of purchase. If we show two in the same picture it is for reference only. What is your zip code.

part #: 1379491605 prices

• $99.99-$218.25

specifications pcbemdev:

• brand: Liebert
• mpn: 13-794916-05
• part type: Circuit Board Card

general pcbemdev:

• condition: Used
• Electronic Components Semiconductors > Circuit Boards Prototyping > Printed Circuit Boards PCBs

seller pcbemdev:

• # reviews: 66078
• rating: 99.8%
• city: Caledonia, New York

payments pcbemdev:

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returns pcbemdev:

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

shipping pcbemdev:

• class: Expedited, Standard, One-day
• transit: 3-8 Days
• type: Calculated
• carrier: USPS, UPS
• cost: $13.30
• service: USPS Priority Mail, UPS Ground, UPS 2nd Day Air, UPS Next Day Air

offer pcbemdev:

• best offers: True
• started: February 9, 2026
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• sold: 0

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