FANUC A20B-1006-0482 is a legacy power and base wiring board for selected FANUC Alpha SPM-26 spindle amplifier modules. It supports power-stage connections and is different from the separate spindle control and firing boards.

FANUC documentation identifies A20B-1006-0482 as the old specification associated with A20B-1006-0488. It appears in the SPM-26 board family used across multiple A06B-6088 configurations. The actual board label remains the primary ordering reference.

A20B-1006-0482 Product Information

SPM-26 Power and Wiring Function

The A20B-1006-0482 provides base connections for power-stage components within compatible SPM-26 amplifiers. It operates with the firing, control and protection circuits. Possible faults may involve fuses, semiconductor connections, DC-bus paths, damaged tracks, connectors or solder joints.

A20B-1006-0482 and A20B-1006-0488

FANUC tables show A20B-1006-0488 as the later specification and A20B-1006-0482 as the old specification. This relationship helps sourcing, but replacement still requires comparison of the complete assembly, revision, connectors, mounting points and associated boards.

Compatibility and Version Checks

Match the actual A20B-1006-0482 label first, then confirm the full A06B module number, suffix such as #H500 or #H501, interface type, CE status and control PCB. A06B-6088-H126, H226, H326 and H426 use different interfaces and are not complete-module substitutes.

Testing and Installation Notes

REACO CNC checks the model label, revision, connectors, fuses, power paths, solder condition and compatible spindle-amplifier operation where applicable. Qualified personnel must isolate power and confirm DC-bus discharge before installation.

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