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| Place of Origin | JAPAN |
| Brand Name | FANUC |
| Certification | CE ROHS |
| Model Number | A20B-8200-0393 |
The A20B-8200-0393 is a FANUC main PCB in the A20B-8200 family. It is identified as a ZERO i-C main PCB, which places it in the central control-board category of the CNC hardware rather than in the I/O, memory, or peripheral-board section.
As a main board, this model sits at the heart of the CNC control structure.
In repair and refurbishment work, exact model continuity matters because the main PCB defines the original control platform, internal hardware layout, and board-family structure of the machine.
This is the type of board that should always be matched by exact model rather than by similar appearance or nearby part number.
| Parameter | Value |
|---|---|
| Part Number | A20B-8200-0393 |
| Manufacturer | FANUC |
| Product Type | Main PCB / Main Board |
| Product Series | A20B-8200 |
| Description | ZERO i-C Main PCB |
| Control Context | FANUC 0i-C / ZERO i-C platform |
| Lifecycle Status | Discontinued by manufacturer |
This board is suitable for installed FANUC 0i-C / ZERO i-C CNC systems where the original hardware already uses the A20B-8200-0393 main-board structure.
It is especially relevant in controller repair, main-board replacement, refurbishment, and lifecycle support where the same CNC platform must be retained.
Before ordering, confirm the installed part number, verify that the control platform is 0i-C / ZERO i-C, and make sure the original main board is A20B-8200-0393.
For a main PCB, exact part-number continuity is essential because this board defines the core control structure of the machine.
Q1: What kind of board is A20B-8200-0393?
It is a FANUC main PCB for the ZERO i-C / 0i-C control platform. This means it belongs to the central control hardware of the machine, not to a peripheral board position.
Q2: Why is the ZERO i-C / 0i-C description important?
Because that description identifies the CNC platform the board belongs to. Main boards are chosen by exact control family, so this is one of the most important compatibility points during replacement.
Q3: Is this a core control board or an accessory board?
It is a core control board. A main PCB forms part of the main control architecture of the CNC and should not be treated as a simple accessory or general spare PCB.
Q4: Why does exact model matching matter on this board?
Because the main board defines the machine’s original control platform and internal board structure. Replacing it with a different model can affect compatibility, installed hardware layout, and serviceability.
Matching the same model is the safest and most appropriate approach.
Q5: What should be checked before ordering?
Check the installed board code, confirm the CNC platform is ZERO i-C / 0i-C, and verify that the original main board is A20B-8200-0393.
These are the main compatibility points for correct replacement.
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