FANUC A20B-8200-0380 Main PCB
Overview
The A20B-8200-0380 is a FANUC main board in the A20B-8200 family. Public parts listings identify it as a Fanuc 0i-C main board / main PCB, and one listing also places it in the PLC processor / CNC control parts category.
Another listing marks it as a discontinued manufacturer item, which reinforces its role as an installed-base replacement board rather than a general-purpose electronic component.
This board belongs to the central control section of the machine.
In practice, a main PCB defines the original hardware platform inside the CNC system, so the correct replacement approach is to match the exact board model already installed in the control.
That is especially important on 0i-C platforms, where the main board is tied directly to the control architecture already in use.
Technical Data
Confirmed public product identifiers for this model are: A20B-8200-0380, FANUC, board / main board, A20B series, and 0i-C main PCB / main board. One public listing also marks it as discontinued by manufacturer.
Application Value
This board is suited to installed FANUC 0i-C CNC systems where the original hardware already uses the A20B-8200-0380 main-board structure.
It is especially relevant in board replacement, controller repair, refurbishment, and lifecycle support where the machine must retain the same control-board family and main-board role.
Because it is identified publicly as a main PCB, this model should be treated as a control-core spare rather than a generic PCB.
Matching the same board helps preserve the original internal hardware layout and the same CNC platform already present in the machine.
Selection Notes
The most important checks are the exact part number, the A20B-8200 family, and the published identification of the board as a 0i-C main PCB / main board.
These are the main compatibility points supported by the available public references for this model.
FAQ
Q1: What kind of board is A20B-8200-0380?
It is a FANUC main PCB / main board. Public product listings identify it specifically as a 0i-C main PCB board, which places it at the core-board level of the CNC control rather than in the I/O, memory, or accessory category.
Q2: Why is the 0i-C description important?
Because that wording identifies the board’s installed control family. A main board described as 0i-C should be matched against the same control platform already used in the machine. That is one of the most important checks in replacement work, since main PCBs define the original control structure.
Q3: Is this a general PCB or a main control board?
The public descriptions place it in the main board category, not in a general spare-parts-only or passive-board category.
That distinction matters because a main board is central to the installed CNC hardware and should be selected by exact model.
Q4: Is this model still treated as a current production part?
One public listing marks A20B-8200-0380 as discontinued by manufacturer. That makes it especially relevant in service and replacement work for machines already built around this board rather than in new machine design.
Q5: What should be checked before ordering?
Check the installed part number, confirm the control platform is 0i-C, and verify that the original main board is A20B-8200-0380 in the installed hardware.
Those are the main compatibility points supported by the available listings.
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