LIEBERT 02-790879-00 Pwa Regulator Circuit Board P/l

( Brand: Liebert ), ( Manufacturer Part Number: 02-790879-00 ), ( Part Type: Circuit Regulator Board )

Review LIEBERT Pwa Dc Regulator Circuit Board Replacement Rev P/l

The **Liebert PWA 02-790879-00 Regulator Circuit Board** is a precision-engineered component designed to ensure the reliable and efficient operation of Emerson Network Power s Liebert PWA uninterruptible power systems (UPS). This critical circuit board serves as the backbone of the UPS s power regulation subsystem, meticulously crafted to maintain voltage stability, protect sensitive electronic loads, and extend the lifespan of connected equipment. Manufactured to exacting standards, the board integrates advanced analog and digital circuitry, including high-precision voltage regulators, current sensing amplifiers, and sophisticated feedback control loops, all working in tandem to deliver seamless power conditioning. Its robust construction features high-quality surface-mount components and carefully routed signal traces, optimized for minimal electromagnetic interference (EMI) and thermal dissipation, ensuring consistent performance even under demanding conditions. The circuit board s design incorporates redundant protection mechanisms, such as overvoltage, undervolture, and short-circuit safeguards, to prevent damage to downstream devices while adhering to strict compliance with industry standards like IEC 62040-3 and UL 1778. Whether deployed in data centers, telecommunications infrastructure, or mission-critical facilities, this component plays an indispensable role in safeguarding against power anomalies, ensuring uninterrupted operation, and maintaining the integrity of high-value assets. Its modular and replaceable nature aligns with Emerson s commitment to field-serviceability, allowing technicians to swiftly restore functionality with minimal downtime. Ideal for environments where power quality is non-negotiable, the **02-790879-00** exemplifies Emerson s dedication to innovation, durability, and performance in critical power protection solutions.

### **Pros and Cons of buying a Liebert PWA Regulator Circuit Board (Part Number: 02-790879-00)**

1. **Compatibility and Reliability** This is an original Liebert PWA (Precision Water-cooled Air Conditioner) component, meaning it is designed specifically for your unit. Using an OEM part ensures proper functionality and avoids potential compatibility issues that may arise with aftermarket or generic replacements.

2. **Warranty Coverage** If purchased directly from Liebert or an authorized distributor, the part may still be under warranty, providing peace of mind against defects or early failures. Some refurbished or third-party sellers may void existing warranties, so verifying this is important.

3. **Performance and Efficiency** Since it is a factory-approved component, it should maintain the original performance specifications of your Liebert PWA unit, including precise temperature and humidity control, energy efficiency, and longevity.

4. **Easier Installation and Troubleshooting** OEM parts are designed to integrate seamlessly with the existing system. Technicians familiar with Liebert units will likely have experience working with this specific part, reducing installation time and potential errors.

5. **Long-Term Durability** Liebert units are built for commercial and industrial use, where reliability is critical. Replacing a faulty component with an OEM part helps maintain the system s overall durability and reduces the risk of cascading failures.

6. **Support and Documentation** Liebert provides technical documentation, schematics, and support resources for their components. This can be helpful if you need to verify compatibility or troubleshoot issues post-installation.

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1. **High Cost** OEM parts from Liebert or authorized dealers are typically more expensive than aftermarket or refurbished alternatives. The price may be prohibitive for budget-conscious buyers, especially if the unit is older or no longer under warranty.

2. **Limited Availability** Liebert has phased out some older models, and certain components may be discontinued. Finding the exact part number (02-790879-00) may require contacting a specialized distributor, which could delay repairs.

3. **Potential for Overkill** If your unit is outdated or nearing end-of-life, investing in an OEM replacement may not be cost-effective. In such cases, upgrading to a newer model or using a compatible aftermarket part could be more practical.

4. **Installation Complexity** Replacing a regulator circuit board may require electrical or HVAC expertise, especially if it involves soldering, wiring, or calibration. DIY attempts could void warranties or damage the unit further.

5. **Lead Times** Even if the part is available, shipping times from manufacturers or distributors can be lengthy, particularly for specialized components. This may not be ideal for urgent repairs.

6. **Environmental and Disposal Concerns** If the old board contains hazardous materials (e.g., capacitors, PCBs), proper disposal may be required, adding to the cost and effort of replacement.

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The **Liebert 02-790879-00 PWA Regulator Circuit Board** is a high-quality, reliable replacement for your unit, ensuring optimal performance and compatibility. However, its **high cost, potential unavailability, and installation challenges** make it less ideal for budget-conscious or non-technical users. If your unit is critical to operations and you have the budget, an OEM part is the safest choice. For less critical systems or older units, exploring **aftermarket alternatives, refurbished parts, or professional repair services** may offer a more balanced solution.

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1. **Verify Compatibility** Confirm that this exact part number is required for your specific Liebert PWA model. Check the unit s serial number and consult Liebert s documentation or a technician to avoid ordering the wrong component.

- **Liebert Authorized Distributors** (e.g., Emerson Climate Technologies, local HVAC dealers).

- **Specialized HVAC Parts Marketplaces** (e.g., ClimateMaster, PartsTown, or eBay with seller reviews).

- **Refurbished or Remanufactured Options** (if available, with a warranty).

- **Upgrading to a newer Liebert model** with better efficiency and support.

- **Using a compatible aftermarket part** (e.g., from brands like **Trane, Carrier, or York**) if Liebert no longer supports the component.

4. **Hire a Professional** Unless you have experience with HVAC electrical work, **hire a licensed technician** to install the part. This ensures proper calibration, avoids voiding warranties, and reduces the risk of further damage.

5. **Check Warranty Status** If the unit is under warranty, contact Liebert s support to see if they cover the replacement. Some manufacturers offer **extended warranty options** for critical components.

6. **Consider Alternative Solutions** If the regulator failure is isolated, explore whether **recalibration, firmware updates (if applicable), or minor repairs** could extend the life of the unit before committing to a full replacement.

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- Your unit is critical and the cost is justified.

- You have verified compatibility and budgeted for installation.

- You prioritize long-term reliability over short-term savings.

Otherwise, weigh the pros and cons of aftermarket options or professional repairs to make an informed decision.

Details:

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

part #: 0279087900 prices

• $40.00-$200.00

specifications pcbemdev:

• brand: Liebert
• mpn: 02-790879-00
• part type: Circuit Regulator Board

seller pcbemdev:

• rating: 99.9%
• city: Burlington, North Carolina
• # reviews: 21522

offer pcbemdev:

• options: Ship-to-home
• best offers: True
• started: March 25, 2026
• availability: In Stock
• quantity: 1
• sold: 0

general pcbemdev:

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

returns pcbemdev:

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

shipping pcbemdev:

• cost: $0.00
• carrier: USPS, UPS
• type: Calculated
• class: Standard, Expedited, One-day
• transit: 3-7 Days
• service: USPS Ground Advantage, USPS Priority Mail, UPS Ground, UPS Next Day Air

payments pcbemdev:

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

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