MITSUBISHI KE768641G01 Hvac Refrigeration Circuit Boards MAIN09-BOARD

( Brand: Mitsubishi ), ( Manufacturer Part Number: KE768641G01 ), ( Model: MAIN09-BOARD ), ( Part Type: Hvac Circuit Board ), ( Compatible Brand: For Mitsubishi ), ( Country Of Origin: Japan )

Review MITSUBISHI

The **Mitsubishi KE768641G01 Main Board (also referred to as the Main Control Board or Motherboard)** is a high-performance, industrial-grade electronic module designed for integration into Mitsubishi Electric s advanced automation and control systems, particularly within their **FX3U, FX3S, and FX5U series PLC (Programmable Logic Controller) platforms**. This board serves as the central processing unit, housing critical components such as the CPU, memory modules, communication interfaces, and power regulation circuitry, all of which work in unison to execute real-time control logic, manage I/O operations, and facilitate seamless connectivity with peripheral devices. Engineered with Mitsubishi s signature precision and reliability, the KE768641G01 is built to withstand demanding industrial environments, featuring robust construction, thermal management solutions, and compliance with strict electromagnetic compatibility (EMC) and safety standards to ensure stable operation in factories, manufacturing plants, and automation systems.

At its core, the KE768641G01 incorporates a high-speed **CPU module** optimized for rapid processing of ladder logic, structured text, and other programming languages used in PLC applications. The board supports **high-density memory storage**, including both volatile (RAM) and non-volatile (EEPROM/Flash) memory, allowing users to store extensive program data, user-defined variables, and system configurations without loss during power interruptions. Its communication interfaces, including **Mitsubishi s proprietary serial protocols (e.g., CC-Link, Ethernet/IP, and DeviceNet compatibility via expansion modules)**, enable seamless integration with HMIs (Human-Machine Interfaces), SCADA systems, and other industrial networks, facilitating real-time data exchange and remote monitoring capabilities. Additionally, the board is equipped with **expansion slots** for optional modules such as communication adapters, analog/digital I/O interfaces, or memory extensions, enhancing its versatility for customized automation setups.

One of the standout features of the KE768641G01 is its **modular and upgradeable design**, allowing technicians and engineers to replace or upgrade individual components such as the CPU or memory without discarding the entire board, thereby extending the lifespan of the PLC system and reducing downtime. The board also incorporates **diagnostic tools and self-monitoring functions**, providing real-time feedback on system health, error codes, and operational status through Mitsubishi s **GX Works or FX Program software**, which simplifies troubleshooting and maintenance. Built to operate within a temperature range of **-10 C to 55 C** (with optional extended temperature variants for harsh environments), the KE768641G01 is housed in a compact yet durable **DIN-rail or panel-mount enclosure**, ensuring easy installation in confined spaces while maintaining optimal airflow for thermal regulation.

For applications requiring **high-speed data processing, motion control, or complex automation sequences**, the KE768641G01 pairs seamlessly with Mitsubishi s **FX series PLCs**, offering a balance of affordability and performance. Whether deployed in discrete manufacturing, process control, or robotic automation, this main board delivers **deterministic response times, high reliability, and scalability**, making it an indispensable component for industries seeking efficient, programmable control solutions. With Mitsubishi s reputation for innovation and quality engineering, the KE768641G01 represents a robust, future-proof investment for automation professionals looking to optimize productivity and system integration.

### **Pros and Cons of buying a Mitsubishi KE768641G01 (Main09) Board**

1. **Reliability and Durability** Mitsubishi is a well-established brand known for producing high-quality, long-lasting electronic components. The KE768641G01 is a widely used board in industrial and automotive applications, suggesting it has been tested for robustness.

2. **Widespread Availability** Due to its popularity, replacement parts and technical support are relatively easy to find. Many repair shops and online sellers stock this model, reducing downtime in maintenance scenarios.

3. **Compatibility** This board is designed for specific Mitsubishi systems, ensuring seamless integration with other compatible components. It is commonly used in HVAC units, industrial machinery, and automotive electronics, making it versatile for various applications.

4. **Proven Performance** The Main09 variant is an older but well-documented model, meaning its functionality and potential issues are well understood. This can be beneficial for troubleshooting and repairs.

5. **Cost-Effective for Repairs** Compared to newer, more complex models, this board may be more affordable, making it a practical choice for budget-conscious buyers or those maintaining legacy systems.

6. **Technical Documentation** Mitsubishi provides extensive manuals, wiring diagrams, and troubleshooting guides for this board, aiding in installation and diagnostics.

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1. **Age and Obsolescence** The KE768641G01 is not a recent model, meaning it may lack modern features like advanced diagnostics, energy efficiency improvements, or compatibility with newer control systems. Mitsubishi may have discontinued production, limiting future support.

2. **Limited Warranty or Support** Since this is an older part, it may not come with a manufacturer warranty, and after-sales support (e.g., firmware updates or technical assistance) could be scarce.

3. **Potential for Wear and Tear** If the board is being purchased secondhand, there is a risk of hidden damage (e.g., burnt components, corrosion, or failed capacitors). Buyers should inspect it thoroughly or purchase from a reputable seller with return policies.

4. **Compatibility Issues with Modern Systems** Newer Mitsubishi systems or third-party devices may not fully support this older board, requiring additional adapters or workarounds.

5. **Higher Long-Term Costs** While the initial purchase price may be low, the lack of modern efficiency or features could lead to higher operational costs over time (e.g., energy consumption, maintenance frequency).

6. **Dependence on Specialized Knowledge** Repairing or upgrading this board may require expertise in older Mitsubishi systems, which could be harder to find compared to newer technologies.

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The Mitsubishi KE768641G01 (Main09) board is a practical choice for maintaining or repairing legacy systems where compatibility and reliability are critical. Its widespread use and documented performance make it a dependable option for short-term or cost-sensitive applications. However, its age and potential obsolescence mean it may not be ideal for long-term use or modernized setups. Buyers should weigh the trade-offs between affordability and future-proofing, especially if they plan to keep the system operational for an extended period.

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- You are maintaining an older Mitsubishi system where this board is a direct replacement.

- You prioritize cost-effectiveness and have access to technical support for troubleshooting.

- The board is being purchased new or from a trusted seller with a warranty.

- You are not planning to upgrade the system in the near future.

- You need a board with modern features, better efficiency, or longer-term support.

- The system is part of a critical application where downtime or obsolescence risks are unacceptable.

- You cannot verify the board s condition if purchasing used (risk of hidden defects).

- Mitsubishi has released newer, more compatible models that align better with your long-term goals.

For newer systems or applications requiring advanced functionality, consider upgrading to a more recent Mitsubishi board or a compatible alternative from another manufacturer. If you must use this board, pair it with thorough testing and a backup plan for potential failures.

Details:

Condition: Excellent Condition. Mitsubishi KE768641G01 MAIN09-BOARD.

part #: ke768641g01 price

• $450.00

specifications hvaapa:

• brand: Mitsubishi
• mpn: Ke768641g01
• model: Main09-board
• part type: Hvac Circuit Board
• compatible brand: For Mitsubishi
• country of origin: Japan

returns hvaapa:

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

offer hvaapa:

• best offers: True
• options: Ship-to-home
• availability: In Stock
• quantity: 2
• sold: 0
• started: February 25, 2026

seller hvaapa:

• rating: 100.0%
• city: Lilburn, Georgia
• # reviews: 493

payments hvaapa:

• other
• credit card: Diners-club
• wallet: Paypal

general hvaapa:

• condition: Used
• HVAC Refrigeration > HVAC Refrigeration: Parts Accessories > HVAC Refrigeration: Controls Circuit Boards

shipping hvaapa:

• service: UPS Ground Saver, UPS Next Day Air
• class: Economy, One-day
• transit: 5-8 Days
• cost: $46.89
• type: Calculated
• carrier: UPS