LIEBERT 02-790868-00 Pwa Rli Pcb Circuit Board P/l

( Brand: Liebert ), ( Manufacturer Part Number: 02-790868-00 ), ( Part Type: Circuit Board )

Review LIEBERT Pwa Rli Pcb Circuit Board Replacement Rev P/l

The **Liebert PWA RLI 02-790868-00 PCB Circuit Board** is a precision-engineered, high-reliability printed circuit board (PCB) designed exclusively for Liebert Precision Cooling s advanced Powerware RLI series of uninterruptible power supplies (UPS). This critical component serves as the backbone of the UPS s control and protection circuitry, ensuring seamless operation, fault detection, and dynamic response to electrical anomalies. Crafted with meticulous attention to thermal management, the PCB integrates a robust array of surface-mount and through-hole components, including high-speed microcontrollers, analog signal processors, and solid-state relays, all optimized for low-latency performance. Its compact yet densely populated layout minimizes signal interference while maximizing efficiency, enabling real-time monitoring of input voltage, output load conditions, and battery status. The board s robust construction features high-temperature-resistant materials and conformal coatings to withstand harsh environmental conditions, including temperature fluctuations, humidity, and transient voltage spikes common challenges in industrial and data center applications. Additionally, the PCB incorporates redundant fail-safe mechanisms to prevent cascading failures, ensuring uninterrupted power delivery even during partial component degradation. Whether deployed in mission-critical facilities, telecommunications hubs, or high-availability computing environments, this circuit board exemplifies Liebert s commitment to reliability, precision, and long-term operational integrity. Its seamless integration with the RLI s modular architecture further enhances scalability, allowing for easy upgrades and maintenance without compromising system performance.

The **Liebert PWA RLI PCB circuit board (part number 02-790868-00)** is a critical component of Emerson s Liebert PWA series uninterruptible power supplies (UPS). Below is a detailed analysis of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of purchasing a Liebert 02-790868-00 PCB**

1. **OEM Compatibility and Reliability**

The PCB is designed as an original equipment manufacturer (OEM) part for Emerson s Liebert PWA series, ensuring seamless integration with the UPS system. Emerson is a well-established brand in critical power solutions, and OEM components are rigorously tested for compatibility, reducing the risk of functionality issues.

2. **Warranty and Support**

Purchasing directly from Emerson or an authorized distributor often includes warranty coverage (typically 1 3 years, depending on the source). This provides peace of mind and access to technical support in case of defects or installation issues.

3. **Performance and Durability**

The PCB is engineered to meet the specifications of the Liebert PWA, including voltage regulation, load handling, and environmental resilience (e.g., temperature, humidity). High-quality components reduce the likelihood of premature failure, which is critical for mission-critical applications like data centers, hospitals, or industrial facilities.

4. **Ease of Replacement**

The part is readily identifiable and designed for straightforward replacement. Emerson provides documentation (e.g., manuals, part diagrams) to simplify the process, even for technicians with moderate experience. This minimizes downtime during repairs.

5. **Long-Term Availability**

As an older but widely used model (Liebert PWA series dates back to the late 2000s/early 2010s), the PCB is likely to remain available through Emerson s parts inventory or authorized resellers for the foreseeable future. This reduces the risk of obsolescence compared to niche or discontinued components.

6. **Cost-Effective for Critical Systems**

While not the cheapest option, the PCB s reliability justifies its cost for applications where UPS failure could lead to significant financial or operational losses (e.g., server downtime, equipment damage). Replacing a faulty PCB is often far less expensive than replacing the entire UPS or dealing with data loss.

7. **Compatibility with Upgrades**

If the Liebert PWA system is part of a larger infrastructure, the OEM PCB ensures backward compatibility with firmware or software updates provided by Emerson, avoiding potential conflicts with aftermarket parts.

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### **Cons of purchasing a Liebert 02-790868-00 PCB**

1. **High Cost**

OEM parts, especially for Emerson, are typically priced higher than third-party or refurbished alternatives. The cost may range from **$500 to $1,500 **, depending on the supplier, region, and whether taxes or shipping fees are included. This can be prohibitive for smaller businesses or budget-conscious IT departments.

2. **Limited Availability Outside Authorized Channels**

Purchasing from unauthorized sellers (e.g., eBay, Alibaba, or uncertified distributors) risks receiving counterfeit or incompatible parts. While Emerson s official website and authorized distributors (e.g., Avnet, Arrow, or local Emerson representatives) offer genuine parts, they may have longer lead times or higher prices.

3. **Potential for Overkill**

If the Liebert PWA UPS is nearing end-of-life or the facility is upgrading to newer technology (e.g., Liebert GXT or PX series), investing in a new PCB may not be cost-effective. In such cases, a refurbished UPS or a complete replacement might be more practical.

4. **Technical Complexity**

Replacing a PCB requires careful handling to avoid static discharge or improper soldering, which could damage other components. While the process is documented, it may require specialized tools (e.g., soldering station, ESD-safe workspace) and expertise, increasing labor costs if professional service is needed.

5. **Warranty Void if Not Purchased from Authorized Sources**

Emerson s warranty typically voids if the part is purchased from unauthorized sellers. This means any post-purchase defects or failures would not be covered, potentially leading to additional repair costs.

6. **Environmental and Logistical Challenges**

The PCB may be heavy or bulky, requiring careful packaging and shipping. Delays in transit or damage during shipping could further increase costs or downtime.

7. **Depreciation Risk**

Since the Liebert PWA series is older, the value of the PCB (or the entire UPS) depreciates over time. If the system is not critical to future operations, the investment may not yield long-term benefits.

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### **Conclusion**

The **Liebert 02-790868-00 PCB** is a high-quality, reliable component for maintaining the functionality of a Liebert PWA UPS. Its advantages OEM compatibility, warranty support, and long-term durability make it ideal for mission-critical applications where uptime is non-negotiable. However, the high cost, potential for overkill in non-critical systems, and the need for careful handling or professional installation are significant drawbacks.

- **Criticality of the UPS**: If the system protects essential equipment (e.g., servers, medical devices), the PCB is a justified investment.

- **Budget and ROI**: For non-critical systems or those nearing replacement, weigh the cost against the risk of failure.

- **Availability of Alternatives**: Explore refurbished UPS units or newer models if the current system is outdated.

- **Supplier Trust**: Always purchase from **authorized Emerson distributors** to avoid counterfeit parts and warranty issues.

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### **Recommendation**

- **Buy from an authorized Emerson distributor** (e.g., Avnet, Arrow, or Emerson s official website) to ensure authenticity and warranty coverage.

- **Verify compatibility** with your specific UPS model (some variants may require different PCB revisions).

- **Budget for professional installation** if in-house expertise is lacking to avoid damaging the PCB or UPS.

- **Evaluate upgrading to a newer Liebert model** (e.g., PX or GXT series) if budget allows, as these offer improved efficiency, smart features, and longer warranties.

- **Consider a refurbished UPS** from a reputable provider (e.g., Emerson s certified refurbished program) if cost is a concern.

- **Assess the total cost of ownership** (TCO) over 3 5 years, including maintenance, energy efficiency, and potential downtime risks.

- **Avoid untested sellers** opt for verified resellers with return policies (e.g., eBay with seller ratings, but still exercise caution).

- **Test the PCB** after installation to ensure it functions correctly, as third-party parts may not meet OEM specifications.

- **Explore cheaper alternatives** such as refurbished PCBs (if available) or simpler UPS replacements, as the risk of failure may not justify the high cost.

For **mission-critical applications**, the **Liebert 02-790868-00 PCB is the safest and most reliable choice**, provided it is sourced correctly. For **non-critical or outdated systems**, prioritize cost-effective alternatives or upgrades to avoid unnecessary expenditure. Always weigh the immediate need against long-term operational goals.

Details:

May show some signs of wear due to age and storage.

part #: 0279086800 prices

• $25.00-$150.00

specifications pcbemdev:

• brand: Liebert
• mpn: 02-790868-00
• part type: Circuit Board

returns pcbemdev:

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

offer pcbemdev:

• started: March 26, 2026
• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 1
• best offers: True

shipping pcbemdev:

• class: Standard, Expedited, One-day
• type: Calculated
• carrier: USPS, UPS
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• transit: 5-8 Days
• cost: $0.00

general pcbemdev:

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

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seller pcbemdev:

• rating: 99.9%
• # reviews: 21529
• city: Burlington, North Carolina

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