The Fanuc A20B-8200-0541 is a 0i-D series main PCB (printed circuit board) used in industrial CNC controllers. Known as the F0ID MAIN BOARD A1, it functions as a critical controller unit, supporting high-quality operation in servo amplifiers for lathes or milling machines. It is commonly used for replacement, maintenance, and repair, frequently sourced through Fanucworld.com and Radwell.

• Part Number: A20B-8200-0541 / A20B82000541
• Series: FANUC 0i-D Control System
• Type: Main PCB / Main Board A1
• Application: CNC machinery (Servo amplifier, spindles)
• Functionality: Often paired with
  
  
  i SVSP/
  
  
  i SVSPc servo amplifiers for small/medium machines.
• Compatibility: Designed for high reliability in CNC industrial environments.

• Condition: Available in new and refurbished/used, often tested to ensure proper operation (e.g., from eBay or PLC Department).
• Warranty: Often sold with 90-day to 2-year warranties depending on the supplier.

Note: As this is an older Industrial unit, inventory on sites like  may reflect refurbished stock.