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FANUC A20B-2101-0922 Alpha i spindle amplifier power board main view
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$3,206.00 USD
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FANUC A20B-2101-0922 is a power board for compatible FANUC Alpha i spindle amplifier modules. A documented application identifies it as the power PCB installed in the A06B-6220-H011#H600 Alpha i-11 spindle amplifier, paired with the A20B-2101-0870 control board.

This listing covers the internal A20B-2101-0922 circuit board only, not a complete spindle amplifier. Match the full board number, slash revision, host A06B module and connector arrangement before replacement.

A20B-2101-0922 Product Information

Brand FANUC
Model / MPN A20B-2101-0922
Alternate Format A20B21010922
Product Type Spindle amplifier power board / power PCB
Board Series A20B-2101
Amplifier Family FANUC Alpha i spindle amplifier
Documented Host A06B-6220-H011#H600 Alpha i-11 spindle amplifier
Associated Control Board A20B-2101-0870 in the documented host configuration
Primary Function Internal power-stage switching and distribution
Supply Scope A20B-2101-0922 PCB only; amplifier housing and control board excluded
Condition New, refurbished, or used 90% new; subject to stock
Testing 100% tested before shipping; test video available
Handling Normally 1–3 business days
Shipping / ETA DHL, UPS, or FedEx worldwide; typically 3–7 business days
Warranty 1 year for new/refurbished; 3 months for used 90% new
Service / Packing Free technical support; anti-static reinforced packing

Alpha i Spindle Power-Stage Function

Within the amplifier, the A20B-2101-0922 carries power-stage components and interfaces required for spindle-motor power control. It operates with the amplifier control PCB and other module hardware; it cannot function as an independent spindle drive or CNC controller.

Compatibility and Board Matching

Confirm A20B-2101-0922 on the original PCB and record any revision printed after the base number. Also compare the complete A06B amplifier model, power rating, connector positions, PCB dimensions and installed control board. A20B-2101-0920, -0921, -0923 and other similar power boards are not automatically interchangeable.

Testing and Installation

REACO CNC checks the board label, substrate, capacitors, power devices, connectors, solder joints and signs of overheating, followed by applicable electrical and amplifier testing. Installation must be completed by qualified personnel after isolating incoming power and allowing the amplifier DC bus to discharge fully.

Related resources: FANUC circuit boards, FANUC spindle drives and FANUC CNC repair service.

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