A20B-3300-0687 FANUC PCB Circuit Board

The A20B-3300-0687 is a FANUC PCB / circuit board used in compatible FANUC CNC, robot, or industrial control equipment. It is an electronic board component for machine control, signal processing, communication, drive-related operation, or system functions depending on the original equipment configuration.

This model is supplied as a FANUC PCB / circuit board, not a complete CNC control system, complete robot controller, or complete drive unit. Correct board number confirmation, connector layout checking, system compatibility verification, and professional testing are important before replacement.

Worldwide Shipping & REACO CNC Service

• Worldwide Shipping: We can ship worldwide by DHL, UPS, FedEx, or other available logistics channels.
• Fast Handling: In-stock items can usually be shipped within 1-2 working days after payment.
• 100% Tested Before Delivery: Each qualified PCB is tested or checked before shipment. Product photos or a test video can be sent before delivery when required.
• REACO Warranty: New or refurbished products usually include a 1-year warranty, and used 90% new products usually include a 3-month warranty.
• Free Technical Support: Our team can help with basic model confirmation, board matching, and replacement guidance.

Product Information

Product Application

The FANUC A20B-3300-0687 circuit board is used for compatible FANUC equipment maintenance and repair. It may be required when the original PCB is damaged, unstable, burnt, corroded, or causing system, communication, signal, drive, or machine operation-related faults.

If your original FANUC board has abnormal operation, no response, alarm issues, unstable signal control, communication problems, or visible component damage, this board may be considered as a replacement after confirming the full board number, machine configuration, connector layout, and alarm information.

Quality Control and Testing

For FANUC circuit boards, careful checking is very important before shipment because PCB condition may directly affect machine operation, communication stability, signal control, system response, and repair success rate. REACO CNC checks qualified products carefully and can provide real product photos or a test video before delivery when required.

Our goal is to help customers receive reliable FANUC CNC and robot spare parts with clear product information, careful inspection, responsive after-sales support, and practical technical assistance.

Compatibility Confirmation

Before ordering, please confirm that the full board number on your original PCB is A20B-3300-0687. Similar FANUC boards may have different connector layouts, hardware versions, applicable CNC systems, robot controllers, drive models, or compatibility requirements.

If you are not sure whether this FANUC PCB is suitable for your machine, please send photos of the original board label, full machine or system model, connector side photos, related drive or controller model if available, and alarm information. REACO CNC can help check the details before purchase.