FANUC A20B-2102-0041 is an internal servo amplifier power PCB used in compatible FANUC αiSV drive hardware. A documented application is the single-axis A06B-6240-H103 αiSV 20 / αiSV 20-B servo amplifier module.

The board forms part of the amplifier's power-conversion section and is supplied as a replacement PCB, not as a complete servo drive. The host A06B-6240-H103 module is a 60mm-wide, 200V-class unit with a documented 6.5A rated axis output; these are host-amplifier specifications rather than a separate rating printed for the bare board.

A20B-2102-0041 Product Information

αiSV Servo Power Function

The A20B-2102-0041 carries power-stage circuitry used by the host amplifier to control a connected FANUC servo motor. It works together with the amplifier's control board, DC-link supply, cooling system and feedback interfaces. It is not a standalone drive and cannot operate without the correct host assembly.

Compatibility and Version Checks

Match A20B-2102-0041 exactly and confirm the complete A06B-6240-H103 nameplate, αiSV generation, PCB revision, connectors, mounting points and component layout. Earlier αiSV 20 and later αiSV 20-B configurations are not automatically interchangeable merely because the cabinet dimensions are similar.

Testing and Installation Notes

REACO CNC checks the label, PCB, power components, connectors and applicable drive operation before shipment. Inspect the associated control board, fan, DC link and motor wiring before fitting a replacement. Qualified personnel must isolate power, wait for the DC bus to discharge and use ESD protection during installation.

Related resources: FANUC PCB boards, FANUC servo drives and FANUC CNC repair services.