FANUC A20B-2101-0390 Power Supply Board A20B21010390 Buy & Repair

FANUC A20B-2101-0390

A20B-2101-0390 – αi Power Supply Board

In stock

$421.00 USD

Shipping:

Delivery: Estimated 2- 6 business days delivery. See details

Returns: 14 days returns. See details

All parts are covered by REACO CNC warranty

All parts tested under load

Fast response, global shipping, expedited shipping available

Free technical support

More than 100,000 parts in stock & ready for delivery

FANUC A20B-2101-0390 – αi Power Supply Board

Brand	FANUC
Condition & Warranty	NEW/Refurbished: 1-Year warranty Used(90% New): 3-Month warranty
Category	PCB
Parameter Description	A20B21010390 DISCONTINUED BY MANUFACTURER PC BOARD POWER SUPPLY BOARD W/ NOISE FILTER PCB - ALPHA I PSM NEW HI POWER CNC
Handing time	Same-Day shipping (in stock)
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
Service	Test video will be sent before delivery
Package	Cartons

The FANUC A20B-2101-0390 is an αi series power supply board (PSM side board) used in FANUC CNC power supply modules.
Although discontinued by the manufacturer, this board remains essential for maintaining and repairing many FANUC αi power units.

This PCB is commonly used as the side board of A06B-6140 and A06B-6150 series power supply modules, including but not limited to:

A06B-6140-H006
A06B-6140-H015
A06B-6140-H026
A06B-6140-H055
A06B-6150-H075

REACO CNC provides tested, refurbished, and repaired A20B-2101-0390 boards, ensuring compatibility and reliable performance for legacy FANUC CNC systems.

Warehouse shelves filled with boxed FANUC CNC parts, showing Reaco CNC’s large inventory for fast global delivery.

Over 100,000 CNC Parts in Stock

With an extensive inventory of FANUC and Mitsubishi components, we ensure fast delivery and reliable replacements — minimizing your downtime.

Shop now

Packaging process showing wooden crates for heavy items and reinforced double-layer cartons for standard products.

Fast Global Delivery

DHL, UPS, FedEx Global shipping.
Expedited shipping available
Packed in secure reinforced cartons for maximum protection during transport.

Technician operating FANUC CNC testing benches during system inspection and repair at REACO CNC.

Need Expert Assistance?

Our experienced engineers provide technical support for all FANUC and Mitsubishi CNC parts — including troubleshooting, installation guidance, and repair consultation.

Get in touch