FANUC A20B-8100-0662 21i-B Main Control PCB
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Delivery: Estimated 2- 6 business days delivery. See details
Returns: 14 days returns. See details
FANUC A20B-8100-0662 21i-B Main Control PCB
| Brand | FANUC |
| Model |
A20B-8100-0662 |
| Handing time | within 1-2 working days |
| Shipping Method | DHL/UPS/FedEx |
| Estimated Delivery Time (via DHL) |
Asia: 1-3 business days Europe: 2-4 business days North America: 2-4 business days South America: 3-6 business days Middle East & Africa: 3-6 business days Oceania: 2-5 business days |
| Warranty | NEW/Refurbished: 1-Year warranty Used(90% New): 3-Month warranty |
| Category | PCBs |
| Parameter Description |
A20B81000662 |
| Service | Test video will be sent before delivery |
| Packing | Cartons |
The FANUC A20B-8100-0662 is a main control PCB used in FANUC Series 21i-B CNC control systems.
This board is configured for PMC-SA1 and is the version without Ethernet functionality. It is commonly described in the industrial parts market as a 21i-B Main PCB, Main CPU PCB, or CNC Motherboard.
The A20B-8100-0662 serves as the principal control board within compatible 21i-B control assemblies, supporting system operation and communication with the related CPU, memory, display, and interface components.
The A20B-8100-0662 has been discontinued by the manufacturer, making tested replacement boards and professional repair support important for maintaining existing FANUC 21i-B CNC systems.
Programming and system setup are required after replacement. The customer must reload the relevant CNC parameters and programs according to the original machine configuration.
Because similar FANUC 21i-B main boards may differ by PMC type and Ethernet support, customers should confirm the complete part number and system configuration before ordering.
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CPU and control functions tested before shipment
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In stock and prepared for prompt dispatch
- Worldwide DHL, UPS, and FedEx delivery
Product Details
- Brand: FANUC
- Part Number: A20B-8100-0662
- Alternative Format: A20B81000662
- Type: Main PCB / Main CPU PCB / CNC Motherboard
- Control Series: FANUC Series 21i-B
- PMC Configuration: PMC-SA1
- Ethernet Function: Not Included
- Product Series: A20B-8100
- Application: FANUC CNC Control Systems
- Installation Requirement: Programming required
- Customer Action: Reload CNC parameters and programs
- Status: Discontinued by Manufacturer
- Category: FANUC CNC Main Board / CPU Control PCB
Compatibility Note
The A20B-8100-0662 should be used only in compatible FANUC 21i-B systems requiring the PMC-SA1 configuration without Ethernet.
Before replacement, please verify:
- Complete FANUC part number
- PMC-SA1 configuration
- Ethernet requirement
- Installed CPU and memory cards
- Original CNC system and machine configuration
Boards with similar appearances or nearby part numbers may use a different PMC configuration or include Ethernet functionality.
Common Use Cases
- FANUC Series 21i-B main PCB replacement
- Replacement in PMC-SA1 systems without Ethernet
- CNC control-system diagnosis and restoration
- Repair of a machine with a confirmed faulty motherboard
- Maintenance of discontinued FANUC 21i-B control equipment
- Replacement during CNC system rebuilding or refurbishment
Sales & Support
Each main control PCB is carefully inspected and tested under applicable conditions before shipment.
Worldwide delivery is available through DHL, UPS, FedEx, and other express carriers. REACO CNC also provides board repair service, warranty coverage, and technical assistance for FANUC CNC main boards and control-system components.
Fast Global Delivery
- DHL, UPS, FedEx Global shipping.
- Expedited shipping available
- Packed in secure reinforced cartons for maximum protection during transport.