The A20B-8200-0845 is a Fanuc F0i-D Main Board A1 used in CNC control systems where stable board-level communication and dependable machine operation are essential. As a main board inside the control unit, it supports key control functions that directly affect system startup, internal processing, and day-to-day machine performance.

This model has been discontinued by the manufacturer, which means many customers now search for it mainly when supporting older installed machines, evaluating repair options, or checking replacement compatibility. The A20B 8200 0845 is also commonly referenced alongside its replacement model, A20B-8201-0085, making it an important part number for service work and spare parts planning.

At REACO CNC, we supply dependable Fanuc parts for customers who need replacement boards, ongoing maintenance support, or Fanuc repair solutions for installed CNC systems.

Product Overview

The A20B-8200-0845 Fanuc control board is designed for F0i-D CNC systems and serves as a core PCB inside the control structure. Boards in this position are directly tied to how the machine communicates internally and how reliably it operates once powered on.

When a main board becomes unstable, the machine may show control faults, startup issues, or irregular behavior that affects production. In those cases, sourcing the correct A20B-8200-0845 can be the fastest way to keep the repair process clear and avoid unnecessary compatibility problems.

Replacement Information

One of the most important details about this board is that the A20B-8200-0845 has been replaced by A20B-8201-0085.

For many customers, this creates two common situations:

• they need the original A20B-8200-0845 part number for an exact match
• they want to confirm whether A20B-8201-0085 is the right replacement option for their machine

That is why this page is important not only for direct sales, but also for helping customers identify the correct board during repair and procurement.

Key Features

• Main board for Fanuc F0i-D systems
• Identified as F0i-D Main Board A1
• Original model discontinued by manufacturer
• Replaced by A20B-8201-0085
• Suitable for replacement, repair, or spare stock planning
• Helps maintain original system compatibility in Fanuc CNC equipment

Typical Applications

The A20B-8200-0845 is commonly associated with:

• Fanuc CNC control systems
• F0i-D machine control units
• Industrial production equipment
• Service and rebuild projects involving older Fanuc boards
• Maintenance work requiring original-compatible Fanuc control PCBs

It may also be sourced together with related Fanuc controller boards, servo amplifier modules, spindle drive units, power supply boards, and interface PCBs during wider repair work.

Condition Options

Depending on stock availability, this board may be supplied in:

• New condition
• Refurbished condition
• Used condition

For discontinued parts like this, refurbished stock is often the most practical option. It can help customers keep machines running while reducing the delay and uncertainty that sometimes comes with older or harder-to-find boards.

Why Customers Search for This Model

Customers usually look for the A20B-8200-0845 when they need:

• An exact replacement for an original F0i-D board
• Help confirming compatibility with A20B-8201-0085
• Backup Fanuc stock for important machines
• Access to dependable discontinued Fanuc parts
• Guidance on whether replacement or Fanuc repair is the better option

In real service work, having the correct board reference often saves far more time than trying to work around the wrong part.

Repair and Replacement Support

REACO CNC supports both direct replacement supply and Fanuc repair inquiries. If your original A20B-8200-0845 is damaged, we can help you determine whether repair is practical or whether replacement is the more efficient route.

We also support sourcing for related Fanuc parts, including main boards, display boards, interface PCBs, servo amplifier modules, and other CNC electronic assemblies used in existing Fanuc systems.

Additional Notes

For many factories, older control systems still do useful work every day. In those cases, keeping the original machine architecture stable is often more valuable than making major changes. A correct A20B 8200 0845 replacement, or confirmation of its successor A20B-8201-0085, can help extend equipment life and keep downtime under control.

Whether you are replacing a failed board, checking substitute part numbers, or comparing replacement against Fanuc repair, REACO CNC can help with dependable Fanuc parts supply and practical support.

FAQ

What is A20B-8200-0845?
It is a Fanuc F0i-D Main Board A1 used in CNC control systems.

Is A20B-8200-0845 discontinued?
Yes. This model has been discontinued by the manufacturer.

What replaces A20B-8200-0845?
It is commonly replaced by A20B-8201-0085.

Can A20B-8200-0845 still be repaired or replaced?
Yes. Depending on condition and stock, repair or replacement may still be possible.

Is this board used in Fanuc CNC machines?
Yes. It is used in Fanuc-controlled CNC equipment.

Do you provide worldwide shipping?
Yes. We supply Fanuc parts to customers around the world.

Need stock, pricing, or replacement guidance for A20B-8200-0845?
Contact REACO CNC for availability, repair support, and worldwide shipping options.